Stem Cell Therapy Market: Snapshot

Of late, there has been an increasing awareness regarding the therapeutic potential of stem cells for management of diseases which is boosting the growth of the stem cell therapy market. The development of advanced genome based cell analysis techniques, identification of new stem cell lines, increasing investments in research and development as well as infrastructure development for the processing and banking of stem cell are encouraging the growth of the global stem cell therapy market.

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One of the key factors boosting the growth of this market is the limitations of traditional organ transplantation such as the risk of infection, rejection, and immunosuppression risk. Another drawback of conventional organ transplantation is that doctors have to depend on organ donors completely. All these issues can be eliminated, by the application of stem cell therapy. Another factor which is helping the growth in this market is the growing pipeline and development of drugs for emerging applications. Increased research studies aiming to widen the scope of stem cell will also fuel the growth of the market. Scientists are constantly engaged in trying to find out novel methods for creating human stem cells in response to the growing demand for stem cell production to be used for disease management.

It is estimated that the dermatology application will contribute significantly the growth of the global stem cell therapy market. This is because stem cell therapy can help decrease the after effects of general treatments for burns such as infections, scars, and adhesion. The increasing number of patients suffering from diabetes and growing cases of trauma surgery will fuel the adoption of stem cell therapy in the dermatology segment.

Global Stem Cell Therapy Market: Overview

Also called regenerative medicine, stem cell therapy encourages the reparative response of damaged, diseased, or dysfunctional tissue via the use of stem cells and their derivatives. Replacing the practice of organ transplantations, stem cell therapies have eliminated the dependence on availability of donors. Bone marrow transplant is perhaps the most commonly employed stem cell therapy.

Osteoarthritis, cerebral palsy, heart failure, multiple sclerosis and even hearing loss could be treated using stem cell therapies. Doctors have successfully performed stem cell transplants that significantly aid patients fight cancers such as leukemia and other blood-related diseases.

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Global Stem Cell Therapy Market: Key Trends

The key factors influencing the growth of the global stem cell therapy market are increasing funds in the development of new stem lines, the advent of advanced genomic procedures used in stem cell analysis, and greater emphasis on human embryonic stem cells. As the traditional organ transplantations are associated with limitations such as infection, rejection, and immunosuppression along with high reliance on organ donors, the demand for stem cell therapy is likely to soar. The growing deployment of stem cells in the treatment of wounds and damaged skin, scarring, and grafts is another prominent catalyst of the market.

On the contrary, inadequate infrastructural facilities coupled with ethical issues related to embryonic stem cells might impede the growth of the market. However, the ongoing research for the manipulation of stem cells from cord blood cells, bone marrow, and skin for the treatment of ailments including cardiovascular and diabetes will open up new doors for the advancement of the market.

Global Stem Cell Therapy Market: Market Potential

A number of new studies, research projects, and development of novel therapies have come forth in the global market for stem cell therapy. Several of these treatments are in the pipeline, while many others have received approvals by regulatory bodies.

In March 2017, Belgian biotech company TiGenix announced that its cardiac stem cell therapy, AlloCSC-01 has successfully reached its phase I/II with positive results. Subsequently, it has been approved by the U.S. FDA. If this therapy is well- received by the market, nearly 1.9 million AMI patients could be treated through this stem cell therapy.

Another significant development is the granting of a patent to Israel-based Kadimastem Ltd. for its novel stem-cell based technology to be used in the treatment of multiple sclerosis (MS) and other similar conditions of the nervous system. The companys technology used for producing supporting cells in the central nervous system, taken from human stem cells such as myelin-producing cells is also covered in the patent.

Global Stem Cell Therapy Market: Regional Outlook

The global market for stem cell therapy can be segmented into Asia Pacific, North America, Latin America, Europe, and the Middle East and Africa. North America emerged as the leading regional market, triggered by the rising incidence of chronic health conditions and government support. Europe also displays significant growth potential, as the benefits of this therapy are increasingly acknowledged.

Asia Pacific is slated for maximum growth, thanks to the massive patient pool, bulk of investments in stem cell therapy projects, and the increasing recognition of growth opportunities in countries such as China, Japan, and India by the leading market players.

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Global Stem Cell Therapy Market: Competitive Analysis

Several firms are adopting strategies such as mergers and acquisitions, collaborations, and partnerships, apart from product development with a view to attain a strong foothold in the global market for stem cell therapy.

Some of the major companies operating in the global market for stem cell therapy are RTI Surgical, Inc., MEDIPOST Co., Ltd., Osiris Therapeutics, Inc., NuVasive, Inc., Pharmicell Co., Ltd., Anterogen Co., Ltd., JCR Pharmaceuticals Co., Ltd., and Holostem Terapie Avanzate S.r.l.

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Stem Cell Therapy Market Statistics, Trends, Size, Growth Opportunities, Share Demand and Forecast to 2025 - Jewish Life News

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UNIVERSITY PARK, Pa. Seamlessly correcting defects in the face, mouth and skull is highly challenging because it requires precise stacking of a variety of tissues including bone, muscle, fat and skin. Now, Penn State researchers are investigating methods to 3D bioprint and grow the appropriate tissues for craniomaxillofacial reconstruction.

A five-year grant from the National Institutes of Health's National Institute of Dental and Craniofacial Research, will allow a team of researchers to explore the use of stem cells, biomaterials and differentiation factors to match the complex tissues of the face and head directly bioprinted during surgery.

"With the advance in 3D bioprinting, in-place reconstruction of composite tissues for craniomaxillofacial repair has recently become feasible as 3D bioprinting enables complex tissue heterogeneity in an anatomically accurate and cosmetically appealing manner," said Ibrahim T. Ozbolat, Hartz Family Career Development Associate Professor of Engineering Science and Mechanics, and principal investigator on the project.

The researchers are looking at ways to bioprint appropriate tissues directly into a subject to correct damage or defects. They will first investigate, in an immunodeficient rat model, bone tissue bioprinting. Next, they will investigate multilayered skin tissue which include adipose fat and dermis/epidermis skin tissue. They will look at the impact of differentiation factors and how fat influences the growth of skin tissue.

Finally, they will look at three-layer composite tissues that include bone, fat and skin layers to determine how vascularization occurs in both soft and hard tissue regeneration.

"We have formed a complementary collaboration that merges essential domain knowledge in bioprinting, regenerative medicine, craniomaxillofacial surgery, plastic surgery, gene therapy, gene delivery, bone mechanics and bone and skin biology with the depth necessary to propel this work," said Ozbolat.

To meet these needs, the team consists of co-investigators, Elias Rizk, associate professor of neurosurgery; Dino Ravnic, assistant professor of surgery, and Thomas Samson, associate professor of surgery, both in the Division of Plastic Surgery and Greg Lewis, assistant professor of orthopedics and rehabilitation, all in the College of Medicine; and Daniel Hayes, associate professor of biomedical engineering.

The goal of the project is to produce an advanced bioprinting technology that shows the complex interactions between layers of engineered tissues and provide an understanding of how localized delivery of differentiation factors will impact craniomaxillofacial reconstruction.

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$2.8M grant to fund bioprinting for reconstruction of face, mouth, skull tissues - Penn State News

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A new study on how and when the precursors to eggs and sperm are formed during development could help pave the way for generating egg and sperm cells in the lab to treat infertility.

The study, publishedin the journal Cell Reports, describes the way in which human stem cells evolve into germ cells, the precursors for egg and sperm cells.

Right now, if your body doesnt make germ cells then theres no option for having a child thats biologically related to you, said Amander Clark, the studys lead author, a member of theEli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA. What we want to do is use stem cells to be able to generate germ cells outside the human body so that this kind of infertility can be overcome.

It is estimated that infertility affects 10% of the U.S. population, and infertility rates have increased over the past several decades because more people are waiting longer to have children. Many forms of infertility can be treated using procedures that join egg and sperm together outside the body, such as in vitro fertilization and intracytoplasmic sperm injection. But for people whose bodies dont produce eggs or sperm because of chemotherapy, radiation, genetics or other unexplained causes those treatments arent an option unless a donor provides the eggs or sperm.

With donated eggs and sperm, the child is not genetically related to one or both parents, said Clark, who also is a UCLA professor and chair of molecular cell and developmental biology. To treat patients who want a child who is genetically related, we need to understand how to make germ cells from stem cells, and then how to coax those germ cells into eggs or sperm.

In developing male and female embryos, a subset of pluripotent stem cells cells that have the potential to become nearly every type of cell in the body become germ cells that will later generate eggs or sperm. Researchers previously demonstrated the ability to make similar stem cells in a laboratory, called induced pluripotent stem cells, or iPS cells, from a persons own skin or blood cells.

Clark and her colleagues used technology that enables them to measure the active genes in more than 100,000 embryonic stem cells and iPS cells as they generated germ cells. Collaborators at the Massachusetts Institute of Technology developed new algorithms to analyze the massive amounts of data.

The experiments revealed a detailed timeline for when germ cells form: They first become distinct from other cells of the body between 24 and 48 hours after stem cells start differentiating into cell types that will ultimately make up all the specialized cells in the adult body.

Clark said that information would help scientists focus their efforts on that particular timeframe in future studies, in order to maximize the number of germ cells they can create.

The study also revealed that the germ cells come from two different populations of stem cells amnion cells, which are located in the fluid and membrane that surrounds the embryo during pregnancy, as well as gastrulating cells from the embryo itself.

When the researchers compared the germ cells derived from embryonic stem cells with those derived from iPS cells in the lab, they found that the patterns by which genes were activated were nearly identical.

This tells us that the approach were using to begin the process of making germ cells is on the right track, Clark said. Now were poised to take the next step of combining these cells with ovary or testis cells.

That next step is critical because molecular signals from ovary or testis tissue are what signal germ cells to mature into eggs and sperm.

If the approach were to be incorporated into a future treatment for infertility, scientists might eventually be able to use a patients own skin cells to form stem cells that can be coaxed into both germ cells and ovarian or testis tissue and those cell types might be able to be used to generate a persons own eggs or sperm in the lab.

Were going in the right direction but it will take a lot of new innovations to solve infertility related to the loss of germ cells, Clark said.

The techniques described above were used in laboratory tests only and have not been tested in humans or approved by the Food and Drug Administration as safe and effective for use in humans.

The research was supported by the National Institutes of Health and a Broad Stem Cell Research Center Innovation Award.

Media Contact

Mirabai Vogt-James310-983-1163mvogt@mednet.ucla.edu

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The future of humanity

It sounds like the stuff of science fiction. Scientists have created what has been described as the first living robots in the lab, and they did so by first trying out different combinations using an evolutionary algorithm, what you can call e-evolution.

Before readers start imagining androids made of flesh I should point out that these xenobots are less than a millimetre wide and the closest thing they have to limbs are two stumps that they use to swim through liquids for weeks at a time without requiring additional nutrition. They are made up of embryonic stem cells taken from the African clawed frog, known scientifically as Xenopus laevis, which inspired the name for the minute bots.

Scientists utilised heart cells that act like miniature pistons and skin cells which hold the package together. The level of sophistication involved in this bioengineering feat suggests that, whereas the technological glories of the past lay in grand monuments and mega-projects, the greatest achievements of the 21st century are to be found at the microscopic, nano and quantum scales.

Developed by researchers from Tufts University, the University of Vermont, and the Wyss Institute at Harvard, these impressive miniature biological machines (or should one refer to them as creatures?), which can repair or heal themselves when damaged, have potentially multiple beneficial uses.

These include the cleaning up of the microplastics polluting our oceans and other toxic materials, as well as vectors to deliver drugs inside our bodies, to perform surgical procedures and other medical applications. Unlike conventional robots and machines which can pollute the environment for a long time after their useful lifetimes have expired, xenobots have the added bonus of being entirely biodegradable, breaking down harmlessly after they die.

In addition, such biological machines are, in principle, more versatile and robust than their inanimate counterparts. If living systems could be continuously and rapidly designed ab initio and deployed to serve novel functions, their innate ability to resist entropy might enable them to far surpass the useful lifetimes of our strongest yet static technologies, the researchers posit.

Nevertheless, while I would not quite class myself as xenobotphobic, I do find the possible fallout of biobots and their future negative potential uses rather unsettling, despite the exciting possibilities they present.

Neither the researchers in their scientific paper outlining the results nor the news coverage of the xenobots appear to have considered the damaging and destructive potential of this technology. However, this does exist and it must be carefully considered in order to avoid the dangerous pitfalls which lie ahead.

The wrong hands could transform biobots from healing machines to bio-weapons. Instead of delivering healing drugs to the body, they could be used to maim or kill. They could be utilised to act as the ideal hitmen, committing the perfect murder.

Given the pace of technological progress, the day cannot be too far off when biobots will be developed that can deliver deadly toxins or viruses deep into the body, attack vulnerabilities in an individual with custom-made DNA, simulate a terminal disease or even carry out deadly microsurgery before a self-destruct mechanism causes them to dissolve into the bloodstream, rendering these invisible assassins untraceable. They could also be designed and utilised to attack entire populations, either as acts of biowarfare or bioterrorism.

Even if we manage to control the potential for intentional mischief and misuse, there is also the potential for accidental damage. For example, the researchers point to the future possibility of equipping biobots with reproductive systems to ensure they can be (re)produced to scale. However, how can we be certain that they will stick to the script of their programming and produce only the requisite numbers of offspring which will live the required lifespan?

Do we understand evolution enough to be certain that these novel lifeforms we will create will not break free of the constraints we have designed for them and mutate in unexpected, and potentially risky, ways?

Beyond the practical applications and misapplications, there are the far-reaching ethical dimensions, not to mention the socioeconomic and cultural implications for humanity.

By (further) blurring the lines between the inanimate and animate, how will we define life in the future? Will everything made out of organic tissue, no matter how simple and synthetic, continue to be regarded as life forms, or will we need new categories?

How about the relative value of life/machines? Is a simple xenobot superior to a highly sophisticated synthetic robot, such as Asimo and other skilled robots, because one is alive and the other is presumably not.

If intelligence and sentience are considered to be some of the hallmarks of humanity, will we need to start granting intelligent machines equal rights, as artificial intelligence continues to catch up with and even surpass its human form?

One of the most controversial tech issues of the moment is data privacy rights. But could we reach a point in the future where data itself will need and have rights? For example, if robots and computers are one day considered to have become truly intelligent and sentient, then their data systems will presumably require protection from malicious erasure, which would be tantamount to murder, or involuntary modification, which would violate their freedom of choice.

Then there are the existential questions this technological progress raises. Although technology has long made the labour of untold millions of professions obsolete, it has generally acted as a booster and aid for a humanity in control of innovation. However, we are rapidly reaching the stage where our technological creations not only dwarf our physical abilities but also our mental capabilities and, soon, intellectual capacities.

When we finally build or evolve machines that are not only clearly more intelligent than we are but also possess a clear sense of self and autonomy, will we be able to continue to control them and, if we do, will this be an unjust form of subjugation or even slavery?

Excerpted from: The genesis of robotic life and the future of humanity.

Courtesy: AlJazeera.com

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The future of humanity - The News International

Skin Stem Cells Comments Off on The future of humanity – The News International | February 10th, 2020

DUBLIN--(BUSINESS WIRE)--The "Colombian Wound Care Market Research Report: By Product, Wound Type, End - User, Distribution Channel - Industry Analysis and Forecast to 2024" report has been added to ResearchAndMarkets.com's offering.

Registering a CAGR of 3.6% during the forecast period (2019-2024), the Colombian wound care market is predicted to reach $93.9 million by 2024, witnessing a substantial increase in its revenue from $76.1 million in 2018.

Taking the geography of the country into consideration, the largest market share in the Colombian wound care market is expected to be held by the state of Cundinamarca. This is mainly ascribed to the increasing research & development activities and rising expenditure on healthcare due to supportive government policies and initiatives. Other states, such as Bolivar, Atlntico, Valle del Cauca, Santander, and Antioquia also hold significant shares in the market on account of the surging incidence of traumatic injuries, burns, and diabetic wounds as well as rising geriatric population.

The Colombian wound care market is witnessing growth due to the rising focus on healthcare services. The wound care facilities in Colombia are witnessing a surge in demand as both the public and private organizations are increasing healthcare coverage. An article published in the Health and Human rights journal in 2016, mentioned that in the country, the healthcare coverage witnessed a remarkable increase during 1991-2016; starting from 25% population in 1992, the health cover facilities were available to 96% population in 2016. This is indicative of the rising focus of the government on providing excellent healthcare facilities and means to the residents of the country.

Stem cell therapy in wound management is becoming the trend in the Colombian wound care market. Extensive research on stem cells has established their remarkable regenerative abilities, which may help in speeding up the wound healing process. A biotechnology company, BioXcellerato LLC, has its treatment center in Colombia by the name of Torre Medica El Tesoro that provides stem cell treatment for various cosmetic and other conditions. Further, it is involved in stem cell therapy and regenerative medicine research for finding prospective treatments for wound and other skin disorders.

Key Topics Covered:

Chapter 1. Research Background

1.1 Research Objectives

1.2 Market Definition

1.3 Research Scope

1.3.1 Market Segmentation by Type

1.3.2 Market Segmentation by Wound Type

1.3.3 Market Segmentation by End User

1.3.4 Market Segmentation by Distribution Channel

1.3.5 Market Segmentation by Geography

1.3.6 Analysis Period

1.3.7 Market Data Reporting Unit

1.3.7.1 Value

1.3.7.2 Volume

1.4 Key Stakeholders

Chapter 2. Research Methodology

2.1 Secondary Research

2.2 Primary Research

2.2.1 Breakdown of Primary Research Respondents

2.2.1.1 By industry participant

2.2.1.2 By company type

2.3 Market Size Estimation

2.4 Data Triangulation

2.5 Assumptions for the Study

Chapter 3. Executive Summary

Chapter 4. Introduction

4.1 Market Definition

4.2 Regulatory Overview

4.3 Market Dynamics

4.3.1 Trends

4.3.2 Drivers

4.3.3 Restraints

4.3.4 Opportunities

4.4 Porter's Five Forces Analysis

Chapter 5. Colombia Wound Care Market

5.1 By Type

5.2 By Wound Type

5.3 By End User

5.4 By Distribution Channel

5.5 By State

5.6 By City

Chapter 6. Competitive Landscape

6.1 Company Benchmarking

6.2 Strategic Developments of Key Players

Chapter 7. Company Profiles

7.1 B. Braun Melsungen AG

7.2 BSN medical GmbH

7.3 Coloplast A/S

7.4 3M Company

7.5 Acelity L.P. Inc.

7.6 Smith & Nephew PLC

7.7 ConvaTec Group PLC

7.8 Paul Hartmann AG

7.9 Mlnlycke Health Care AB

7.10 Hollister Incorporated

7.11 Tecnoquimicas SA

7.12 Beiersdorf AG

7.13 Johnson & Johnson

For more information about this report visit https://www.researchandmarkets.com/r/p28fze

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Colombian Wound Care Market Research Report: By Product, Wound Type, End - User, Distribution Channel - Industry Analysis and Forecast to 2024 -...

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Call us biased, but the skincare industry, in particular, is one of our favorites to watch when it comes to technological advancements. From laser zapping to weird-looking at-home devices, the anti-aging sphere is constantly evolving, with new treatments and procedures being launched on the daily. Just 10 years ago, Blackberries (the phone, not the fruit Gisele Bndchen says she avoids) were still the epitome of cool, and no one except makeup artists ever used the word contouring. Ten years from today, will wrinkles, dark spots, and sagging be a thing of the past? Its a slightly exhilarating (and also completely terrifying) thought.

As beauty editors, its our job to stay on top of all thats new in the quest for younger, tauter skin. Right now, were intrigued by a new ingredient trend thats very unexpected (yes, even compared to salmon sperm): human stem cells. Yeah, well let that sink in for a minute. If applying a strangers stem cells on your face sounds creepy or the start of a very niche horror movie, youll want to keep readingthe information ahead might just change your mind. We asked Dr. Hal Simeroth, founder of Stemology skincare and possessor of a Ph.D. in Bioethics, to tell us if human stem cells (and their extracts) are the key to eternal youthor, at the very least, a more prolonged youth. Ready to get really scientific?

Keep scrolling to school yourself on this anti-aging trend.

Everyone likely has a vague notion of what stem cells are, but its probably best to let an expert explain. The term stem cells refers to a rather broad category of cells that participate in tissue generation, regeneration, and renewal, Hal says. In other words, they are the cells that help you, your dog, and the tomatoes in your vegetable garden heal; humans, animals, and plants all have these types of cells. And this is what makes stem cells special: theyre undifferentiated and have the invaluable properties of self-renewal and differentiation, according to Hal. In laymans terms, this means they have the much-coveted ability to divide to make more stem cells, and more stem cells you get the idea. Human stem cells are divided into three primary categories: embryonic, which are the initial stem cells after birth that control the development into a human baby; adult mesenchymel stem cells, which exist in our bodies and are responsible for the repair and renewal of structural tissues; and tissue-specific stem cells, which only repair and rejuvenate specific tissues such as your skin. Remember these, because well touch on them again later.

Before we dive headfirst into human stem cells, lets first talk about plant stem cells. In the skincare industry, theyre the popular crowd: Theyve largely been accepted and welcomed with open arms, touted for their skin-regenerating abilities. The idea is that if this stem cell helps a flower flourish in the freezing temps in some far-off exotic locale, then it must be able to keep your skin dewy and glowing too. But does that logic really make sense? According to Hal, not really. Its false at a primary level, but true at a secondary level, he says. Um, what? The directing of repair and renewal by plant stem cells within the plant is orchestrated by cellular signals that would not be recognized by human cells, he says. Plant stem cell material cannot mimic the activity of our stem cells in the human body in a primary way. There are genetic boundaries that cannot be crossed. So, just because rose stem cells can help a rose grow and flourish doesnt mean it can do the same for your skin. However, Hal does say that some plant stem cells do provide nutrients and metabolites that have been shown to stimulate human epidermal stem cell productionthus, the secondary way he mentions. Either way, he says to always check to see if a plant stem cell material in your skincare product that promises to plump your skin is backed up by scientific research and clinical testing (a quick Google search should yield results).

Now that weve covered plant stem cells, lets dive right into the nitty-gritty and talk human stem cells. Hal mentions adult mesenchymal stem cells (MSC) specifically, citing many research studies and scientific papers published over the last two decades about their ability to be the natural healers of all our bodys structuresmuscle, bone, skin, neural tissue and more. Because of their potent ability to rejuvenate and repair, and also because they do not carry the negative ethical stigma of embryonic stem cells harvested from human embryos, they have been embraced by many for use in potential clinical protocols, Hal explains. Right now, these human stem cells have already been in practice in Europe with success and are currently in FDA-approved testing programs in the U.S. Without getting too technical, heres how these MSCs work. Like a master coordinator, MSCs respond to biochemically transmitted needs from any areas of traumafor example, if you get a cut, scrape, or a more severe injury. Sensing the need, the MSCs begin to multiply and release different biochemical signals to bring on other anti-inflammatory and immune cells, like a commander rallying his troops to fight a battle. Thus, it would be logical to assume that this healing, regenerating ability that works with wound-healing can also apply to overall skin renewal. We can conclude from a large body of scientific evidence that MSCs do their work by releasing messengers and helpers such as growth factors, peptides, and matrix proteins that provide rejuvenating instructions and assistance to the targeted body cells, Hal says. As we age, these "messenger" proteins the MSCs attract might just be the key to helping our skin renew (read: stay wrinkle-free).

Stemologys hero product (and the product that inspired this story) is their Cell Revive Serum Complete ($189), which lists human stem cell-derived conditioned media as the number two ingredient after aloe. Notice how it's a human stem cell-derived mediaand not an actual human stem cell. So, what's the difference? Actual human stem cells can actually be grown outside of the body by stimulating human body conditions, and can create a massive number of cells since theyre self-renewing; a single original MSC can generate large numbers of offspring cultures that grow naturally and are encouraged to secrete the helpers and messengers we mentioned earlier. Those growth factors, cytokinal peptides, matrix proteins, and helper molecules are the human stem cell-derived conditioned media. Under controlled conditions, the MSCs are completely removed, so that there are no actual cellular components, and the harvested small secreted proteins are retained in this conditioned medium, Hal says. This conditioned medium contains all the important, renewing and healing components originally drawn to the human stem cell, which can be integrated into a skincare formula and penetrate the skin. Whewyou still with us?

So, the catch is that as of now, there are no actual human stem cells used in products in the U.S. In fact, Hal says actual human stem cells are not suitable for topical skin care applications since they are fragile and easily destroyed, as well as too large to be absorbed. Instead, brands like Stemology will extract one human stem cell to grow hundreds more, which in turn generates the helper ingredients that plump your skin. The result? More youthful skinat least according to science. Hal cites one published study that confirms the application of topical growth factors from MSC stimulate the repair of facial photo-aging resulting in new collagen synthesis, epidermal thickening, and the clinical appearance of smoother skin with less visible wrinkles.

So, no actual human stem cells are being used in topical skincare (yet). But what about all those self-generating powers and benefits we mentioned earlier? Human stem cell extracts sound great, but what about the real dealthe genuine original? Dr. Christopher Calapai, D.O. and stem cell expert says that actual human stem cells can disrupt the skincare industry, but only under three conditions: theyll need to be from a human who is preferably the one seeking the treatment, alive, and delivered directly to the skin (most likely with an injection). Otherwise, the stem cells are simply too large to penetrate the skins surface, and will just sit there instead of absorbing and encouraging other cells to regenerate (which they'll slowly do less and less of with time).

Until the FDA approves those things, well be giving products with human skincare extracts our attention. And, who knowsthe time when injecting your own stem cells back into your skin might be sooner than you think (a fact we cant decide whether thrills or frightens us).

StemologyCell Revive Serum Complex$189

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Human Skin Cells: The Next Anti-Aging Frontier?

Skin Stem Cells Comments Off on Human Skin Cells: The Next Anti-Aging Frontier? | February 8th, 2020

AESTHETICS medicine encompasses non-invasive treatments that do not involve surgery and aim to improve or correct the appearance of patients. Less intensive than cosmetic surgery, aesthetics medicine procedures are carried out by doctors to give natural and reversible results. Depending on your areas of concern, different techniques may be employed in combination to produce the best results - there is no "cookie-cutter" approach to your skincare needs.

Our skin has three layers:

The epidermis, the outermost layer of skin, provides a waterproof barrier to protect our body from germs and harmful UV rays. Its bottom-most layer makes new skin cells, and these skin cells travel up to the top layer and flake off, about a month after they form. It also gives you your skin colour, due to the presence of special cells called melanocytes, which produce the pigment melanin.

The dermis, the middle layer, contains tough connective tissue, blood vessels, hair follicles, and sweat glands.

The hypodermis, the innermost layer, is made of fat and connective tissue.

Ageing happens in every layer of the skin. Changes within the skin's layers show themselves on the surface as signs of ageing.

In the epidermis, a slower cell turnover and reduction in lipid production on the skin's surface means rough and dry skin as we age. Our skin is less efficient at repairing itself from harmful infections and UV rays. This causes pigmentation problems, like sunspots.

In the dermis, from the age of 25, there is a 1 per cent annual decrease in collagen, one of the "building blocks" of the skin. Elastin also decreases as we age. Hence, the structure of the skin is compromised, and wrinkles and saggy skin start to appear.

In the deeper layers, the hypodermis, the changes to the size and number of fat cells leads to deep wrinkles and hollow cheeks.

Skin ageing manifests by:

Fine lines and wrinkles: The first noticeable sign of ageing from 25 onwards are fine lines and wrinkles, especially around your eyes. Your dermis, the second layer of your skin, contains the collagen and elastic fibres that keep young skin plump, taut and wrinkle-free. The amount of collagen and elastic fibres in your dermis dwindles as the years roll on. As a result, your skin becomes less elastic, sags and you start to see the tell-tale signs of wrinkles.

Open pores and sagging skin: Ageing causes your skin to lose its elasticity, which stretches your pores and make them look larger. The accumulation of excess oil, dead skin cells and dirt trapped inside your pores also enhances their appearance. Hormonal changes such as pregnancy, menstruation and puberty can also enlarge your pores.

Dry and dull skin: Your epidermis forms the outer layer of your skin - a physical barrier from the external environment. On average, your body will produce an entirely new epidermis about every 60 days. Cells on the surface of your skin rub and flake off, continuously being replaced with new ones from below.

As you get older, it takes longer for your epidermis to renew itself, hence, more dead skin cells accumulate on the top layer of our skin. This diffuses light away and produces a dull skin tone. In addition, as we age, oil production slows down and this makes our skin dry - we soon lose that "Korean glass-skin effect".

Hyperpigmentation

Melanocytes located in the epidermis produce pigment called melanin. Hyperpigmentation is caused by an overproduction of melanin in patches of the skin.

This overproduction is triggered by a variety of factors, including sun exposure, genetic factors, age, hormonal influences, and skin injuries or inflammation.

Common types of hyperpigmentation encountered in our population are:

Melasma: Melasma is a common skin problem among Asians. Women are far more likely than men to get melasma, especially during pregnancy. They present as brown to gray-brown patches, usually on the face. Most people get it on their cheeks, nose bridge, forehead, chin, and above their upper lip. It also can appear on other parts of the body that are exposed to sunlight, such as the forearms and neck.

Solar lentigo: Solar lentigo, also known as age spots, are non-cancerous lesions that occur on the sun-exposed areas of the body. These flat lesions usually have well-defined borders, are dark in colour, and have an irregular shape. The backs of hands and face are common areas.

The lesions tend to increase in number with age, making them common among the middle age and older population. Age spots occur in 50 per cent of women and 20 per cent of men over the age of 50, due to stimulation from UV rays.

Post-inflammatory hyperpigmentation (PIH): It is temporary pigmentation that follows injury, for example, a cut to the skin, or inflammation of the skin, for example, acne or eczema. PIH can occur in anyone, but is more common in darker-skinned individuals, in whom the colour tends to be more intense and persist for a longer period than in lighter skin.

Freckles: Freckles are common, especially among fairer-skinned individuals. They start early on in life, even in childhood, and are due to your genetic makeup and sun exposure.

Dull skin, enlarged pores, pigmentation - How can they be corrected?

Avoid sun exposure: Sun exposure is the main cause of ageing. Choose a sunscreen with "broad spectrum" protection, meaning that it protects against both UVA and UVB rays. UVA rays also contribute to skin cancer and premature aging, UVB rays are the main cause of sunburn and skin cancers.

Ensure your sunscreen has a SPF30 or higher. Physical sunscreen, those that contain zinc oxide or titanium dioxide, provide better sun protection compared to chemical sunscreens, and are less likely to clog pores and cause pimples.

Protect your eyes with sunglasses and cover up with a wide-brimmed hat or an umbrella. Limit your direct exposure to the sun, especially between 10am and 4pm, when UV rays are strongest. Avoid tanning beds, which can cause serious long-term skin damage and contribute to skin cancer.

Lightening creams: Abnormal accumulation of melanin results in hyperpigmentation. Lightening creams contain ingredients to reduce the production of melanin. Powerful lightening creams are available through a prescription from a doctor, while milder ingredients do not require a prescription.

Hydroquinone is a major ingredient in lightening creams. However, frequent adverse reactions experienced by patients, such as skin irritation and inflammation, have prompted research into other agents. Several alternatives such as tranexamic acid, and 4-n-butyl resorcinol, arbutin and kojic acid have been developed.

Lasers: There are many different lasers in the market, for many different types of indications. The property of the laser, which determines what it is used for, is the specific wavelength it emits. Different structures in the skin will absorb light energy at different wavelengths. Therefore, in pigmentation treatments, we can deliver light energy at the correct wavelength to heat up the pigmentation, while sparing the other nearby structures that absorb different wavelengths.

The pigmentation absorbs the light energy and is broken up into small fragments and eventually is cleared from the skin.

My personal favourite protocol is to use two very effective lasers for pigmentation treatment, via a Rejuvenation Laser protocol.

The Nd:YAG laser emits wavelengths of 1064nm and 532nm. It is a gentle cleansing machine that helps to remove surface dirt and oil, cleanse your skin, dry up pimples, build collagen and is very effective to break up pigmentation into small fragments.

The yellow laser, made in Germany, emits a wavelength of 577nm. It helps with improving radiance, giving you radiant skin, reducing redness and effectively vaporising pigmentation.

The Rejuvenation Laser is non-ablative, gentle and has no downtime.

Combined with a potent post-procedure serum, it synergistically enhances the anti-ageing effect of the laser protocol. The serum employs proteins secreted by umbilical cord-lining stem cells to produce collagen, restore healthy skin function and treat symptoms of ageing.

This series is produced in collaboration with The Aesthetics Medical Clinic

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Aesthetic treatments can help you maintain your youthful glow - The Business Times

Skin Stem Cells Comments Off on Aesthetic treatments can help you maintain your youthful glow – The Business Times | February 7th, 2020

Looks like some science fiction. Scientists have created what has been described as the first live robots in the laboratory, and they did so by testing different combinations using an "evolutionary algorithm," which can be called electronic evolution.

Before readers begin to imagine androids made of meat, I must point out that these "xenobots" They are less than a millimeter wide and the closest thing they have to the extremities are two stumps that they use to swim through liquids for weeks at a time without requiring additional nutrition. They are composed of embryonic stem cell taken from the African clawed frog, known scientifically as Xenopus laevis, which inspired the name of the tiny bots.

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The scientists used heart cells that act as miniature pistons and skin cells that hold the package together. The level of sophistication involved in this feat of bioengineering suggests that, while the technological glories of the past reside in large monuments and megaprojects, the greatest achievements of the 21st century are found in the microscopic, nano and quantum scales.

Developed by researchers at Tufts University, the University of Vermont and the Harvard Wyss Institute, these impressive miniature biological machines (or should they refer to them as creatures?), Which can repair or heal themselves when they are damaged, They have potentially multiple beneficial uses. .

These include cleaning the microplastics that pollute our oceans and other toxic materials, as well as vectors to administer medications within our bodies, to perform surgical procedures and other medical applications. Unlike conventional robots and machines that can pollute the environment for a long time after their useful lives have expired, xenobots have the additional advantage of being completely biodegradable, which break down harmlessly after "dying."

In addition, such "biological machines,quot; are, in principle, more versatile and robust than their inanimate counterparts. "If living systems could be designed continuously and quickly ab initio and deployed to fulfill novel functions, their innate ability to resist entropy could allow them to far exceed the useful lives of our strongest but static technologies." the researchers postulate.

However, although I do not classify myself as xenobotphobic, I find the possible consequences of biobots and their possible future negative uses quite disturbing, despite the exciting possibilities they present.

Neither the researchers in their scientific paper Outlining the results or news coverage of the xenobots seems to have considered the damaging and destructive potential of this technology. However, this exists and should be carefully considered to avoid the dangerous hazards ahead.

The wrong hands could transform biobots from healing machines to biological weapons. Instead of administering curative medications to the body, they could be used to maim or kill. They could be used to act as the ideal hitmen, committing the perfect murder.

Given the pace of technological progress, the day cannot be very far away when biobots that can send toxins or deadly viruses to the body, attack vulnerabilities in an individual with tailored DNA, simulate a terminal illness or even carry out deadly microsurgery will be developed before a self-destruct mechanism causes them to dissolve in the bloodstream, making these invisible killers impossible to track. They could also be designed and used to attack entire populations, either as acts of biological warfare or bioterrorism.

Even if we manage to control the potential for intentional damage and misuse, there is also the potential for accidental damage. For example, researchers point to the future possibility of equipping biobots with reproductive systems to ensure that they can be (re) produced at scale. However, how can we be sure that they will stick to the script of their programming and produce only the required number of descendants who will live the required useful life?

Do we understand evolution enough to be sure that these novel life forms that we will create will not get rid of the limitations we have designed for them and will mutate in unexpected and potentially risky ways?

Beyond practical applications and erroneous applications, there are long-range ethical dimensions, not to mention the socio-economic and cultural implications for humanity.

By blurring (even more) the lines between the inanimate and the lively, how will we define life in the future? Anything made of organic tissue, no matter how simple and synthetic, continues to be considered life forms, or will we need new categories?

How about the relative value of life / machines? It is a simple xenobot superior to a highly sophisticated synthetic robot, such as Asimo and other expert robots, because one is "alive,quot; and the other probably not.

If intelligence and sensitivity are considered to be some of the characteristics of humanity, will we have to start granting intelligent machines the same rights, since "artificial intelligence,quot; continues to reach and even surpass its human form?

One of the most controversial technological problems of the moment is data privacy rights. But could we reach a point in the future where the data itself needs and has rights? For example, if one day it is considered that robots and computers have become truly intelligent and sensitive, then their data systems will presumably require protection against malicious deletion, which would amount to murder or involuntary modification, which would violate their freedom to choice.

Then there are the existential questions posed by this technological progress. Although technology has rendered the work of countless millions of professions obsolete, in general it has acted as a reinforcement and aid for a humanity in the control of innovation. However, we are rapidly reaching the stage where our technological creations not only eclipse our physical abilities but also our mental abilities and, soon, intellectual abilities.

When we finally build or develop machines that are not only clearly smarter than us, but also have a clear sense of identity and autonomy, we can continue to control them and, if we do, will this be an unjust form of subjugation or even slavery?

To escape the possible inevitability of our own obsolescence and the physical limitations of our bodies, we can decide to merge with our technological creations. We can update or modify our bodies in part or in full, as well as load or update our mental operating systems. Who knows, some may even decide to escape the physical constraints imposed by our mortal and vulnerable bodies, and download their mind and "spirit,quot; into a simulated virtual world (later), transforming into a pure metaphysical code.

Future radical modifications of our physical or mental states, especially if they are divergent among species, will raise the biggest and most fundamental question of all: what does it mean to be human?

The opinions expressed in this article are those of the author and do not necessarily reflect the editorial position of Al Jazeera.

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The genesis of robotic life and the future of humanity | Sciences - Up News Info

Skin Stem Cells Comments Off on The genesis of robotic life and the future of humanity | Sciences – Up News Info | February 7th, 2020

Its no secret that loading your plate with fruits and vegetables and eschewing processed meat products is good for your insides. But is a vegan diet good for healthy skin, too?

Many celebrities say that it is; Natalie Portman and Billie Eilish have noticed significant improvements in their skin since going vegan and cutting out dairy.

Portman told the Cut a few years ago, Im vegan and I found my skin is much, much better than when I was a vegetarian. I cut out dairy and eggs, and I never had a breakout after. Eilishwho went vegan for ethical reasonssaid in a Tumblr post in 2018, Im lactose intolerant and dairy is horrible for your skin and my skin is VERY aware of that.

But its not just celebrities who think veganism is good for your skin, experts agree that theyre onto something. Blade Tiessena medical aestheticianwho owns the Ontario-based Anti-Aging Clinic and has worked in skincare for 33 yearsbelieves that ditching animal products for a healthy vegan diet can have a dramatic effect.I say this from both personal and professional experience. I suffered from acne since my early teens until months after going vegan at 35, being in the industry I had every treatment and product at my disposal over the years, he told LIVEKINDLY. Some helped to keep breakouts under control but nothing solved the issue permanently until shortly after becoming vegan.

Multiple studies say that ditching dairy could help acne-sufferers. Acne is the most common skin condition in the United States; it affects around 50 million Americans every year.

There are a few different theories on why dairy can cause an acne flare-up; some studies suggest that hormones in cows milk are the culprit. These hormones are intended to stimulate growth in calves. When humans ingest them, they release insulin, which can trigger breakouts.

According to a medically-reviewed article on Healthline, sometimes the hormones in milk can also interact with our own hormones, confusing our bodys endocrine system and signaling breakouts.

Nonprofit PlantPure Communities (PPC) recently launched a social media campaign called Ditch Dairy for Clearer Skin. The campaign aims to educate the public about the link between acne and dairy consumption.

In a supporting article, pediatrician Dr. Jackie Busse, MD, FAAP, says, removing dairy is the first and most important dietary change you should make to prevent and treat acne.

A vegan diet could also help people who suffer from eczemaa condition where patches of skin become inflamed, itchy, and cracked. According to Healthline, a handful have studies have shown that a raw, vegan diet, in particular, can be very beneficial, although there isnt conclusive evidence.

Plant-based foods have also been linked with easing psoriasis, an immune-mediated disease. Similar to eczema, it causes raised red flaky patches to appear on the skin.

Eating a whole food plant-based diet can help psoriasis sufferers because it is naturally low in inflammatory foods, says dietician Deirdre Earls, RD, LD. She was once hospitalized with psoriasis as a child, but switching to a plant-based diet helped her manage the condition effectively.

She told Everyday Health,I drastically changed my diet. I took all of the diet coke, all of the ultra-processed stuff out, and then I replaced it with simple, whole, mostly plant-based foods. Within six months, my skin had cleared.She added,psoriasis is an inflammatory condition, so anything you can do to cut down on inflammation should help.

Reality TV personality and entrepreneur Kim Kardashian-West has suffered from psoriasis for more than a decade and was recently diagnosed with psoriatic arthritis. She opened up on sister Kourtney Kardashians website Poosh about her battle with the disease, and how switching to a plant-based diet has helped her.

I love a healthy life and try to eat as plant-based as possible and drink sea moss smoothies,she said, adding that she also tries to keep her stress levels to a minimum.I hope my story can help anyone else with an autoimmune disease feel confident that there is light at the end of the tunnel.

Eating vegan foods can help with painful conditions, but they can also just make your skin glow too.

According to Tiessen, patients who follow a vegan diet achieve superior skin results to those who do not. They also have more energy and they sleep better. He says, eating a healthy vegan diet free of inflammatory foods along with drinking lots of water, sleeping well, exercising, reducing levels of stress, taking care of and protecting your skin will help ensure beautiful glowing skin that will last a lifetime.

He also recommends using cruelty-free vegan skincare products. Skincare should be looked at as nutrition and protection for the skin, he added. Supplying the skin with nutrients from organic plants can offer benefits that are unavailable from chemicals and or animal-based ingredients.

If you want to opt for cosmetic intervention, Tiessens clinicsin Orillia Ontario and Port Severn Ontariooffer many cruelty-free and vegan treatments, including microneedling. The chain is also an ambassador for vegan medical skincare brand ElaSpa.

If you prefer to stick to just consuming whole foods, here are seven of the best plant-based foods to eat to keep your skin looking glowing and healthy.

Eating spinach regularly can benefit your skin. Its rich in vitamins and minerals, including vitamin A, vitamin C, and vitamin E, which are particularly good for your skin. Its also a great source of iron, as well as folate and magnesium.

Blueberries are packed with skin-beautifying antioxidants. Stephanie Clarkeco-owner of C&J Nutritiontold Self, that deep blue/purple color that makes blueberries so gorgeous translates to helping your skin look young too. This color is a result of compounds called anthocyanins, powerful antioxidants that shield the skin against harmful free radicals that can damage the collagen that keeps your skin firm.

Eating avocados is good for your skin, as theyre rich in vitamins C and E. You can also apply them directly to your face and feel their benefits that way. Registered dietician Maureen Eyerman told Elle, the hydrating properties may reduce fine lines and wrinkles, help keep skin smooth, and boost skins immunity against stress and other environmental factors.

Sweet potatoes are rich in vitamin E and vitamin C, which helps to boost collagen. Theyre also rich in anthocyanins, which can help to prevent blemishes and dark spots. Sweet potatoes are also a source of fiber, iron, calcium, and selenium.

Walnuts contain omega-3 fats, which, according to Clarke,strengthen the membranes of your skin cells.They also contain nourishing fats which attract soothing moisture from the air and reduce inflammation, helping to avoid breakouts.

Carrots are associated with good eye health, but theyre good for the skin, too. According to Healthline, vitamin C-rich carrots can help skin recover from conditions like psoriasis and rashes. They can also help you heal faster from cuts and other wounds.

Kiwis have more vitamin C than oranges, and theyre packed with vitamin E. You can also place them over the top of your eyes, which can help to reduce the appearance of dark circles.

Summary

Article Name

The Vegan Diet and Healthy Skin: Everything You Need to Know

Description

Is the vegan diet the best defense against skin conditions? Here's everything you need to know about eating plant-based and healthy skin.

Author

Charlotte Pointing

Publisher Name

LIVEKINDLY

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The Vegan Diet and Healthy Skin: Everything You Need to Know - LIVEKINDLY

Skin Stem Cells Comments Off on The Vegan Diet and Healthy Skin: Everything You Need to Know – LIVEKINDLY | February 7th, 2020

Do you ever wonder why celebrities are never seen with dark circles under their eyes? Well, we discovered the secret behind the flawless complexions of the rich and famous and its something you can use at home.

After we were especially impressed by the performance of Cardi Bs enviable complexion on the red carpet ahead of the Grammy Awards a few weeks ago, we investigated her skincare routine. As it turns out, this pop stars go-to treatments are Lancer Method 3-step regimen and Dr. Lancers Eye Lifting Cream for an extra boost under the eyes.

These impressive at-home skincare products are designed to promote a youthful appearance in the skin by supporting collagen regeneration and speeding up cell turnover. The result is skin that looks and feels younger, in a natural way.

Lancer The Method: Normal-Combination Set ($255)

Everything You Need To Know About The Lancer Method

The Lancer Method works in three steps used once a day to give you glowing, rejuvenated skin. Dr. Harold Lancer explained to SheFinds, The Lancer Method was developed to help skin act younger by accelerating cell turnover, supporting natural collagen regeneration, and feeding skin essential nutrients. Polish is a dual-action exfoliator that improves the look of fine lines, texture, discoloration and pores for a smoother, younger-looking complexion.

The hydrating, pH-balanced cleanser comes next and gently removes makeup, dirt and oil for a fresh, healthy-looking complexion. Nourish is an ultra-hydrating moisturizer that reduces the look of fine lines and wrinkles while delivering essential nutrients for a dewy and glowing appearance.

Lancer Eye Contour Lifting Cream ($95)

What The Dr. Lancer Eye Lifting Cream Does

Even with the best daily anti-aging skincare routine, we all need to give a little extra love to the skin under our eyes from time to time. This skin is extra sensitive and therefore, more prone to the effects of stress and environmental damage. Dr. Lancers Eye Lifting Cream specifically targets this area to brighten and smooth the skin to reduce the appearance of aging.

Eye Contour Lifting Cream is a triple-action eye treatment and hydrator that targets multiple eye are concerns for a brighter, more youthful experience, Dr. Lancer said. Its proprietary complexes work to improve the appearance of fine lines, wrinkles, puffiness, dark circles and loss of elasticity. When used together, this powerful combination of products targets all areas of the face and top skincare concerns, leaving you with a clear and youthful complexion.

Dr. Lancer said that the best way to promote a youthful glow in your skin is to use hyaluronic acid, peptides, vitamins A, C and E and bioactive phytocompounds.

Hyaluronic Acid is a component of connective tissues that cushions and hydrates. Hyaluronic Acid is found in the skin naturally, but decreases with age so it is important to replenish it topically in conjunction with other ingredients to treat wrinkled skin, Dr. Lancer explained. Peptides are short snippets of linked amino acids reduce the appearance of wrinkles and fine lines as they stimulate collagen production. Vitamins A, C and E are antioxidants that prevent free radical damage and combat oxidation.

And bioactive phytocompounds have been isolated from natural plant sources- some examples: natural fruit enzymes, moisturizing ingredients such as sea algae and aloe vera, grape polyphenol, lilac stem cells, skin lighteners from licorice root, anti-inflammatory agents from ginger root, natural tea tree oil, chamomile oil and marula oil.

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The Eye Contour Cream Celebrities Swear By To Look FLAWLESS On The Red CarpetIt Works Immediately! - SheFinds

Skin Stem Cells Comments Off on The Eye Contour Cream Celebrities Swear By To Look FLAWLESS On The Red CarpetIt Works Immediately! – SheFinds | February 7th, 2020

Biomedical engineers at Duke University have developed the most advanced disease model for blood vessels to date and used it to discover a unique role of the endothelium in Hutchinson-Gilford Progeria Syndrome. Called progeria for short, the devastating and extremely rare genetic disease causes symptoms resembling accelerated aging in children.

The model is the first to grow both the smooth muscle and inner lining, or endothelium, layers of blood vessels from stem cells derived from the patients own skin. Combined with an advanced experimental setup that pushes culture media that models blood through the engineered blood vessels, the model reveals that the endothelium responds differently to flow and shear stress with progeria than it does when healthy.

The study shows that a diseased endothelium alone is enough to produce symptoms of progeria, and also demonstrates a new way of studying blood vessels in dynamic 3D models to better understand and test treatments for serious diseases.

The results appear online on February 6 in the journal Stem Cell Reports.

The endothelium expresses the toxic protein that causes the symptoms of progeria, but it does so at much lower levels than the outer layer of blood vessels made of smooth muscle, said Nadia Abutaleb, a biomedical engineering PhD student at Duke and co-first author of the paper. Because of this, the entire field has been focused on smooth muscle, and the few that have looked at the endothelium have mostly looked at it in a static 2D culture. But weve discovered that its necessary to work dynamically in three dimensions to see the full effects of the disease.

Progeria is a non-hereditary genetic disease caused by a random single-point mutation in the genome. It is so rare and so deadly that there are only about 250 people known to be currently living with the disease worldwide.

Progeria is triggered by a defect in a protein called progerin that leads it to accumulate outside of a cell's nucleus rather than becoming part of the nuclear structural support system. This causes the nucleus to take on an abnormal shape and inhibits its ability to divide. The resulting symptoms look much like accelerated aging, and affected patients usually die of heart disease brought on by weakened blood vessels before the age of 15.

"Progeria isn't considered hereditary, because nobody lives long enough to pass it on," said George Truskey, the R. Eugene and Susie E. Goodson Professor of Biomedical Engineering at Duke. "Because the disease is so rare, its difficult to get enough patients for clinical trials. We're hoping our platform will provide an alternative way to test the numerous compounds under consideration."

Blood vessels are difficult to simulate because their walls have multiple layers of cells, including the endothelium and the media. The endothelium is the innermost lining of all blood vessels that interacts with circulating blood. The media is made mostly of smooth muscle cells that help control the flow and pressure of the blood.

In 2017, the Truskey laboratory engineered the first 3D platform for testing blood vessels grown from skin cells taken from progeria patients. The blood vessels exhibited many of the symptoms seen in people with the disease and responded similarly to pharmaceuticals.

While the smooth muscle cells in our previous study were created using cells from progeria patients, the endothelial cells were not, said Abutaleb. We suspected that the endothelial cells might be responsible for some of the lingering symptoms in the original study, so we began working to grow blood vessels with both smooth muscle and endothelial cells derived from the same patient.

By successfully growing endothelial cells derived from progeria patients, the researchers were able to create a more complete model of the disease. They also tested the endotheliums unique contribution to the diseases symptoms by mixing impaired endothelium with healthy smooth muscle.

They found that a diseased endothelium alone was enough to produce many of the symptoms of progeria, but that these results only appeared when the cells were tested under dynamic conditions.

One of the major findings is that the progeria endothelium responds to flow and shear stresses differently than healthy endothelium, said Abutaleb.

The new models healthy blood vessels responded to pharmaceuticals more strongly than in past papers, and the diseased blood vessels showed a greater drop in functionality. With this advanced model in hand, the team is now beginning to investigate how new and current drugs for progeria affect a patients blood vessels.

This research was supported by the National Institutes of Health (R01 HL138252-01, UH3TR000505, UH3TR002142) and the National Science Foundation (GRFP Grants #1106401 and DGE1644868).

CITATION: iPSC-derived Endothelial Cells Affect Vascular Function in a Tissue Engineered Blood Vessel Model of Hutchinson-Gilford Progeria Syndrome, Leigh Atchison, Nadia O. Abutaleb, Elizabeth Snyder-Mounts, Yantenew Gete, Alim Ladha, Thomas Ribar, Kan Cao, George A. Truskey. Stem Cell Reports, vol. 14, issue 2 (2020). DOI: 10.1016/stecr.2020.01.005

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Engineered Living-Cell Blood Vessel Provides New Insights to Progeria - Duke Today

Skin Stem Cells Comments Off on Engineered Living-Cell Blood Vessel Provides New Insights to Progeria – Duke Today | February 7th, 2020

Imagine a world where those living with Type 1 Diabetes, a chronic illness affecting more than 60 million adults globally, no longer had to deal with regular blood glucose monitoring, daily insulin injections or life-threatening nighttime hypoglycemic events, but instead could eat, exercise and sleep worry-free. Thats the kind of future an up-and-coming breakthrough technology is on track to creating.

Beta-O2 Technologies, a privately held biomedical company headquartered in Israel with research and industry affiliates across the U.S., is working to deliver a first-of-its-kind bio-artificial pancreas as a safe, effective and long-term cure for the disease. With preliminary animal trials showing promising results for its second generation breakthrough device, called Bio-artificial Pancreas (Air), the company is planning to begin human clinical trials within the year.

We have strong pre-clinical evidence to prove the safe operation of our device on animals, said Beta-O2 CEO Amir Lichter, noting that the second generation Air is performing well in ongoing animal studies. Its an enormous achievement that is paving the road for human trials.

Measuring approximately 2.5 by 2.5 inches, Air is made of titanium. It has two components: a macrocapsule that contains pancreatic cells and an oxygen tank equipped with an external port, so patients can easily refresh oxygen levels weekly. Once implanted under a patients skin, it becomes a natural source of insulin, sensing blood glucose levels and delivering insulin as required.

While there are a couple of other artificial pancreatic solutions being explored by different industry players, Beta-O2s disruptive technology is the only bio-artificial pancreas to incorporate an active oxygen supply, necessary to keep the pancreas cells in the implanted device functional and viable over the long term. Other solutions are demonstrating limited success because they rely on a patients bloodstream to deliver enough oxygen to keep the transplanted cells viable, which is problematic, Lichter explained.

Pancreas cells (islets) are extremely delicate, he said. We solve the problem by proactively supplying oxygen through an external source, providing a superior solution.

Lichter said the beauty of the Beta-O2 solution which holds 10 global patents for its exclusive immune protection capabilities and oxygen supply mechanisms is that its very generic, meaning it can contain cells from a human donor, cells from the pancreas of a pig, or cells derived in a lab from stem cells. Other advantages are that Beta-O2s bio-artificial pancreas does not require a patient to take intensive immunosuppression therapies after implant due to its protective encapsulation capabilities, and the device can quickly be retrieved from a patient if necessary due to malfunction or other health concerns, he explained.

Beta-O2 is currently collaborating with several U.S.-based pharmaceutical companies and academics, including researchers from Harvard University, MIT, University of Virginia and Cornell University, to further enhance the Air oxygen supply and its ability to measure glucose levels and secrete insulin once implanted. The company is also in negotiations to solidify its collaboration with several stem cell providers as it looks to secure an additional $15 million in investment funds to support its aggressive go-to-market strategy.

The active oxygen supply used by Beta-O2 is currently the best and most advanced technique for maintaining viability and function of large numbers of pancreaticislets (or stem cell-derived islets) in an encapsulation transplantation device, said Clark K. Colton ofthe Department of Chemical Engineering at MIT andBeta-O2 Scientific Advisory Board member.

Calling the Beta-O2 device a next-gen treatment option, Dr. Jos Oberholzer, Professor of Surgery, Biomedical Engineering and Experimental Pathology at the University of Virginia and Beta-O2 Scientific Advisory Board member, explained that after years of insulin injections and closed-loop insulin pumps and glucose sensors, patients will finally have access to a biological device solution to treat the most brittle forms of diabetes. The Beta-O2 device is the only implant that has shown reproducible results in humans with diabetes, with measurable insulin production originating from human islet cells within the device without the need for recipients to take any immunosuppressive drugs.

An earlier safety trial involving four patients in Sweden, supported by New York-based JDRF (Juvenile Diabetes Research Foundation), successfully demonstrated that Beta-O2s device is fully safe for use. No side effects were observed in patients who carried the device for up to 10 months, and the cells remained viable and functional.

Now, current animal trials underway at Beta-O2 are focused on extending the life of functional cells even further, with promising early results showing that rats implanted with Air are maintaining normal glucose levels.

With tangible evidence that we can maintain the viability and functionality of our cells for a long duration in rats, which have an immune system very similar to humans, we are looking forward to moving ahead with our second round of human clinical trials, Lichter said, noting that the company aims to be first to show that implanted biological pancreatic cells can successfully achieve normal blood sugar levels in diabetic patients without the need for immunosuppression therapy.

___________________________________________________________

About Beta-O2 Technologies Ltd. (www.beta-o2.com)

Beta-O2 Technologies Ltd. is a biomedical company developing a proprietary implantable bioreactor, the Air, for the treatment of Type 1 Diabetes. Air is designed to address the main problems of the otherwise successful procedures in which islets of Langerhans (i.e. pancreatic endocrine cells) are transplanted in diabetic patients, such as the need for life-long immunosuppressive pharmacological treatment and limited functionality of the transplanted islets over time due to an insufficient oxygen supply. Beta-O2 investors include SCP Vitalife Partners, Sherpa Ventures, Aurum Ventures, Pitango Venture Capital, Saints Capital, Japanese and Chinese private investors.

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First-of-its-Kind Bio-Artificial Pancreas on Track for Type-I Diabetes Cure - Global Trade Magazine

Skin Stem Cells Comments Off on First-of-its-Kind Bio-Artificial Pancreas on Track for Type-I Diabetes Cure – Global Trade Magazine | February 7th, 2020

"Signs of cancer can appear long before diagnosis," reports The Guardian.

Most cells in the body divide and reproduce constantly, picking up replication errors in their DNA over time as we age. Many of these errors may be harmless, but some can cause or increase the risk of cancer.

Cancers begin when harmful errors, or mutations, cause our cells to divide in an uncontrolled way. It's usually impossible to tell if this is happening, until the cancer starts to cause physical signs or symptoms.

In this new study, an international team of researchers sequenced the genomes (the entire DNA and genetic material) of 2,658 tumour samples.

They used the information to work out the order in which mutations and copying of mutations happened, because usually more than one mutation is needed before cells become cancerous. The researchers then modelled how different types of cancer develop over time.

They found that harmful mutations for some types of cancer, such as ovarian cancer, characteristically happen very early, in some cases decades before people have any physical signs of the disease. The findings raise hopes that some cancers could be detected and treated much earlier.

However, at present it's not clear whether this research could lead to a cancer screening system based on checking for "genetic early warning signs", both in terms of effectiveness and feasibility.

At present, the best way to detect cancer early is to be alert to the possible signs and symptoms, attend cancer screening when invited, and know about your family history of the disease.

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The research was carried out by the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium, an enormous collaboration between hundreds of scientists from 4 continents. 46 scientists worked on this particular paper, from 38 universities or research institutes.

The PCAWG group published 6 papers this week, but we're focusing on just 1, which looked at the way cancers evolve over time. The study was published in the peer-reviewed journal Nature on an open-access basis, so it is free to read online.

The Guardian, BBC News and Mail Online focused on the discovery that DNA changes to cells may happen many years before cancer can currently be diagnosed, and the reporting was generally accurate.

This was a modelling study, using data from the whole genome sequencing of 2,658 cancers to reconstruct the likely evolution of DNA in these cancers over time. The study helps scientists to better understand how cancers begin and evolve.

However, at this stage, the results cannot be used to test for cancers in people.

A team of scientists worldwide worked with 2,778 samples of cancers, taken from 2,658 people with cancer. Some people gave just 1 sample, while others gave a sample of newly diagnosed primary tumours, and later, a sample of a metastatic cancer (when cancer has spread to another part of the body). 38 cancer types were represented in the samples.

The scientists carried out whole genome sequencing of the samples. This showed where DNA mutations arose, and whether they had been copied and duplicated as more DNA changes accumulated.

Researchers could look for so-called "driver" mutations, which are known to be linked to cancer, and see whether they happened early or late in the cancer's evolution.

They used this information to model a typical "life history" for each of the 38 types of cancer. This showed whether important mutations happened early or late in the cancer's development. They then estimated how that mapped against a person's life. For example, whether cancer-causing mutations happened a short time before cancer was diagnosed, or whether they had been present for years or decades before cancer was detected.

The researchers found that the time between cancer-driving mutations and diagnosis varies a lot between cancers. Some (such as liver and cervical cancer) happen 1 to 5 years before the cancer was diagnosed. By contrast, ovarian cancers showed significant mutations 10 to 40 years before diagnosis. This suggests the original mutations that lead to some adult cancers could happen during childhood or adolescence.

Other results included:

The researchers said: "Our study sheds light on the typical timescale of tumour development, with initial driver events seemingly occurring up to decades before diagnosis." They say the results "highlight opportunities for early cancer detection."

This study represents an enormous achievement by many scientists working together to find out more about how cancers develop over time. This type of work is likely to be important in developing future tests for cancers, and possibly new treatments that can target cancers at a very early stage.

However, the study does not change how cancer is diagnosed or treated at present. It can take years before early-stage research like this leads to changes in clinical practice.

As one of the scientists involved in the study told journalists, the idea of being able to target mutations by doing blood tests during childhood, then eliminate dangerous mutations, is "science fiction".

This research is very complex and, as with all modelling, it relies on some assumptions about the time it takes for mutations to arise, be duplicated and copied. The accuracy of the findings will depend on the accuracy of these assumptions.

All samples in the study came from people who had developed cancer. It would be interesting to compare findings with non-cancerous tissue samples from these people, or samples from people who did not develop cancer.

It's good news that DNA sequencing technology now allows scientists to work on such a large scale, and that theyre able to work together to find out more detail about the way that cancers evolve. This type of work could make a big difference to the way doctors approach cancer in future.

Analysis by BazianEdited by NHS Website

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Could findings of large new study change how cancer is diagnosed and treated - NHS Website

Skin Stem Cells Comments Off on Could findings of large new study change how cancer is diagnosed and treated – NHS Website | February 7th, 2020

People who develop Parkinson's disease at a younger age (before age 50) may have malfunctioning brain cells at birth, according to a study that also identified a drug that may help these patients.

At least 500,000 people in the United States are diagnosed with Parkinson's each year. Most are 60 or older at diagnosis, but about 10% are between 21 and 50.

Parkinson's is a neurological disease that occurs when brain neurons that make dopamine become impaired or die. Dopamine helps coordinate muscle movement.

Symptoms get worse over time and include slow gait, rigidity, tremors, and loss of balance. There is currently no cure.

"Young-onset Parkinson's is especially heartbreaking because it strikes people at the prime of life," said study co-author Dr. Michele Tagliati, director of the Movement Disorders Program at Cedars-Sinai Medical Center in Los Angeles.

"This exciting new research provides hope that one day we may be able to detect and take early action to prevent this disease in at-risk individuals," he said in a hospital news release.

For the study, Tagliati and colleagues generated special stem cells from the cells of patients with young-onset Parkinson's disease. These stem cells can produce any cell type of the human body. Researchers used them to produce dopamine neurons from each patient and analyzed those neurons in the lab.

The dopamine neurons showed two key abnormalities: buildup of a protein called alpha-synuclein, which occurs in most forms of Parkinson's disease; and malfunctioning lysosomes, structures that act as "trash cans" for the cell to break down and dispose of proteins. This malfunction could result in a buildup of alpha-synuclein, the researchers said.

"Our technique gave us a window back in time to see how well the dopamine neurons might have functioned from the very start of a patient's life," said senior author Clive Svendsen, director of the Cedars Sinai Board of Governors Regenerative Medicine Institute.

"What we are seeing using this new model are the very first signs of young-onset Parkinson's," Svendsen said in the release. "It appears that dopamine neurons in these individuals may continue to mishandle alpha-synuclein over a period of 20 or 30 years, causing Parkinson's symptoms to emerge."

The study was published Jan. 27 in the journalNature Medicine.

The researchers also tested drugs that might reverse the neuron abnormalities. A drug called PEP005 already approved by the U.S. Food and Drug Administration for treating precancers of the skin reduced elevated levels of alpha-synuclein both in mice and in dopamine neurons in the lab.

The investigators plan to determine how PEP005, which is available in gel form, might be delivered to the brain to potentially treat or prevent young-onset Parkinson's.

They also want to find out whether the abnormalities in neurons of young-onset Parkinson's patients also exist in other forms of Parkinson's.

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Parkinson's Traced to Malfunctioning Brain Cells at Birth - Newsmax

Skin Stem Cells Comments Off on Parkinson’s Traced to Malfunctioning Brain Cells at Birth – Newsmax | February 7th, 2020

When talented rugby player George Thompson went to see his doctor with a suspected match-related injury, the last thing he expected to hear was the word 'cancer'.

George Thompson had been playing rugby since the age of six, spending most of his young sporting career at Devonport Services RFC, representing Devon U15s, captaining Devon U16s and Plymouth Albion U18s, before joining the Exeter Chiefs Academy.

The 17-year-old, from Saltash, was set to join his local club, Saltash RFC, but in a devastating and unexpected blow has had to give up the sport he loves after being diagnosed with Neuroblastoma.

The rare type of cancer mostly affects babies and young children, but very occasionally is found in adolescents.

George, who is in his second year of a gas engineering apprenticeship with Plymouth Community Homes, began suffering with lower back pain and was originally told that it was believed he had ankylosing spondylitis - a long-term condition which means the spine and other areas of the body become inflamed.

But after numerous scans and tests, he was told he had the rare cancer, which had also spread to his bones and bone marrow.

He has now been transferred to Bristol Royal Hospital for children where he is undergoing chemotherapy.

George now has a 12-month plan which will include surgery, chemotherapy, blood transfusions, radiotherapy and immunotherapy.

More than 13,800 has been raised on a crowdfunding page - which you can donate to here - set up by George's auntie, Catherine Arris.

George's sister, Rosie, said the "response has been overwhelming".

She said the money will help herself, her mother Julie and father, Martin with travel costs and subsidise their lost income whilst frequently making back-and-forth trips from Cornwall to Bristol, to ensure that they are with George throughout "the intense treatment period".

Rosie said: "This will also enable George to have some quality downtime away from the hospital ward when he is well enough in-between treatments.

"It is important to us that we maintain as normal a family life as possible throughout the difficult months that lie ahead and this is now being made possible by the generosity of so many people.

"There are not enough words to thank each and every person who is supporting us."

Rosie explained that any money which remains at the end of George's treatment will be donated to Clic Sargent, The Teenage Cancer Trust and Neuroblastoma UK.

"These charities are already looking after us, providing accommodation and various support," she said.

George has already undergone four blood transfusions and it is likely he will receive further transfusions.

Rosie said: "We are all signing up to donate blood and would encourage as many people as possible to follow suit. We have seen first hand how important blood donations are.

"In such a short space of time we have been amazed by the generosity and heartfelt messages of support.

"Georges fun loving character and caring nature has been recognised by so many people, some who have never met George."

There are a number of plans for fund-raising events to take place during Georges treatment, to raise money for Clic Sargent and the Teenage Cancer Trust.

Plymouth Community Homes is set to arrange an event, as well as a team named 'Run For George' which has entered into the Mudstock Run on June 27, 2020, supported by BH Fitness.

There is also a fund-raising rugby match on April 18, 2020, which has been organised by George's uncle, Richard Thompson.

If you are interested in this story, you may be interested in the crowdfunder for the Plymouth man diagnosed with testicular cancer at just 21 years old.

Neuroblastoma is a rare type of cancer that mostly affects babies and young children.

It develops from specialised nerve cells (neuroblasts) left behind from a baby's development in the womb.

Neuroblastoma most commonly occurs in 1 of the adrenal glands situated above the kidneys, or in the nerve tissue that runs alongside the spinal cord in the neck, chest,tummy or pelvis.

It can spread to other organs, such as the bone marrow, bone, lymph nodes, liver and skin.

It affects around 100 children each year in the UK and is most common in children under the age of 5.

The cause is unknown. There are very rare cases where children in the same family are affected, but generally neuroblastoma does not run in families.

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The symptoms of neuroblastoma vary depending on where the cancer is and whether it's spread.

The early symptoms can be vague and hard to spot, and can easily be mistaken for those of more common childhood conditions.

Symptoms can include:

See a GP or contactNHS 111if you're worried your child might be seriously ill.

A number of tests may be carried out if it's thought your child could have neuroblastoma.

These tests may include:

Once these tests have been completed, it'll usually be possible to confirm if the diagnosis is neuroblastoma and determine what stage it is.

As with most cancers, neuroblastoma is given a stage. This indicates if it's spread and, if so, how far.

The staging system used for neuroblastoma is:

Knowing the stage of your child's neuroblastoma will allow doctors to decide which treatment is best.

Some babies and infants less than 18 months old with either stage L1 or Ms neuroblastoma who have no symptoms may not need any treatment, as the cancer can sometimes go away on its own.

The main treatments for neuroblastoma are:

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Promising rugby teen is told back injury actually rare cancer - Plymouth Live

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Machines intended to work in the body should probably be made out of cells from your body.

There are two stories I would like to tell with this edition of Business Unusual, the first is about the Darpa funded research to build robots out of living cells, the second is the incredible history of the animal that was used to build the first biological robots - Platannas.

The Defense Advanced Research Projects Agency (DARPA) is an agency of the American Department of Defense. It has funded many projects for military projects that in time have come to be used for civilian applications. The best-known example is the predecessor of the internet.

Why a military agency would fund research into creating living robots might be concerning but the stated objectives include managing environmental clean-ups or improving drug delivery which certainly are worthy pursuits. Of greater concern, are the ethical questions that are raised by creating new forms of a living organism. At the moment the designs dont attempt to make them self-replicating but that is part of the future plans.

Robots typically are designed and programmed to perform a specific task. Until now they would have been constructed out of non-living materials. These robots are also designed for a specific task but created from living cells. The choice of cell and the specific construction determines what action or function the living robot can perform.

One function that was attempted was movement. Starting from scratch researchers used stem cells from a frog to create skin cells and heart cells. The heart cells are muscles and so can contract while heart cells are able to do so rhythmically. Using those properties a machine learning program was tasked with testing thousands of configurations to determine which design would use the least cells to achieve the motion required. Once the best designs were determined, the living robots were constructed by researchers manipulating individual cells under a microscope.

The tiny constructed robots demonstrated that living robots designed by computer could offer an alternative to traditionally constructed machines. Future versions would look to make the constructions more complex and eventually able to self replicate.

One intended function was using a swarm of living robots with the ability to decompose plastic to be used to remove microplastics in the ocean. That may be a long way off, but if it is to become a reality the best time to start working on it is now.

Another application might be to not find plastic in the sea, but cancers in your body. Your body is already very good at doing so, but as we age and at certain times of our lives it becomes more challenging to correctly identify and kill cancer cells when they are still only tiny tumours.

This would require building robots consisting of your own body cells arranged in a way to allow them to move through the body and specifically find the corrupted cells. Adding them in numbers as we age may reduce the chance of developing tumours or even help the body recover after exposure to damaging external factors like sun damage to your skin.

This too is a long way off, but if successful and added to the many other options for extending and improving our lives then the research is most welcome.

_Image credit: Wikipedia African clawed frog_

Setting the other issues relating to building living robots aside, you might wonder why a frog from South Africa was chosen to build the first living robots.

It was not a random choice but points to a fascinating history that makes this particular frog one that has helped humanity overcome medical issues on a number of occasions.

A pregnancy test these days simply requires peeing on a stick. The reaction to a specific hormone in the urine can be isolated in minutes and let you know if you are pregnant within days of it occurring. It was not always this easy, the first method we are aware of would see a potentially pregnant woman urinate on ungerminated wheat and barley and wait a week or so to see if it germinated. Incredibly it works and was first mentioned over 3 000 years ago by the Egyptians. It was scientifically tested in the 1960s and found to be 70% accurate.

There were a variety of other methods used most on the expectation that something in the urine of females could be used to confirm pregnancy. In the 1920s it was injecting urine into female rabbits that after a day would require the examination of the rabbit ovaries. If swollen the woman was pregnant. In order to do the examination the rabbit was always killed and so the search continued for a better option.

Enter Lancelot Hogben, an English researcher lecturing in Cape Town in the early 1930s. He advised a student to consider using the local platanna as a potential for use as a model organism for biological tests. His hunch proved correct with Hillel Shapiro and Harry Zwarenstein creating the test to use the frog to indicate pregnancy.

The frog would be injected and in hours if the woman was pregnant would produce eggs. Not only was it accurate, but it also would not harm the frog which was easy to keep in a lab and would live for over a decade. As a result, the remarkable frog was exported around the globe and provided the answer to the question, am I pregnant, to the largest population explosion in our history. Most baby boomers parents and indeed many baby boomers would have found out if they were pregnant thanks to this strange-footed frog.

Xenopus literally means strange foot, frogs typically dont have claws which is why the African clawed frog got the name and as for Platanna, that may be a reference to the frog being very flat - plat in Afrikaans.

Given its widespread use for pregnancy and acceptance as a good species for embryonic development when researchers attempted to clone an organism, this frog was once again a key in understanding the process. In 1958, Xenopus was cloned not from splitting an embryonic cell which was the original method, but by using the DNA from an adult specialised cell which replaced the original DNA in a frog egg. The method proved successful and paved the way to allow Dolly the sheep to be cloned from an adult sheep cell in 1996.

We owe a huge debt of gratitude to six species that for a variety of reasons have helped us understand biological processes and how best to deal with disease and the efficacy of drugs. There are nematode worms, fruit flies, zebrafish, chickens, mice and the African clawed toad.

These six animals are our real guinea pigs.

Image credit: Xenobot - Tuft University & University of Vermont

This article first appeared on 702 : Biological robots, that is a thing now

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Biological robots, that is a thing now - CapeTalk

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Electron micrograph showing ridges and grooves on MAP hydrogel microbeads caused by developing stem cells.

Courtsey of Daniel Alge

Baby diapers, contact lenses and gelatin dessert. While seemingly unrelated, these items have one thing in common theyre made of highly absorbent substances called hydrogels that have versatile applications. Recently, a type of biodegradable hydrogel, dubbed microporous annealed particle (MAP) hydrogel, has gained much attention for its potential to deliver stem cells for body tissue repair. But it is currently unclear how these jelly-like materials affect the growth of their precious cellular cargo, thereby limiting its use in regenerative medicine.

In a new study published in the November issue of Acta Biomaterialia, researchers at Texas A&M University have shown that MAP hydrogels, programmed to biodegrade at an optimum pace, create a fertile environment for bone stem cells to thrive and proliferate vigorously. They found the space created by the withering of MAP hydrogels creates room for the stem cells to grow, spread and form intricate cellular networks.

Our research now shows that stem cells flourish on degrading MAP hydrogels; they also remodel their local environment to better suit their needs, said Daniel Alge, assistant professor in the Department of Biomedical Engineering. These results have important implications for developing MAP hydrogel-based delivery systems, particularly for regenerative medicine where we want to deliver cells that will replace damaged tissues with new and healthy ones.

MAP hydrogels are a newer breed of injectable hydrogels. These soft materials are interconnected chains of extremely small beads made of polyethylene glycol, a synthetic polymer. Although the microbeads cannot themselves cling to cells, they can be engineered to present cell-binding proteins that can then attach to receptor molecules on the stem cells surface.

Once fastened onto the microbeads, the stem cells use the space between the spheres to grow and transform into specialized cells, like bone or skin cells. And so, when there is an injury, MAP hydrogels can be used to deliver these new cells to help tissues regenerate.

However, the health and behavior of stem cells within the MAP hydrogel environment has never been fully studied.

MAP hydrogels have superior mechanical and biocompatible properties, so in principle, they are a great platform to grow and maintain stem cells, Alge said. But people in the field really dont have a good understanding of how stem cells behave in these materials.

To address this question, the researchers studied the growth, spread and function of bone stem cells in MAP hydrogels. Alge and his team used three samples of MAP hydrogels that differed only in the speed at which they degraded, that is, either slow, fast or not at all.

First, for the stem cells to attach onto the MAP hydrogels, the researchers decorated the MAP hydrogels with a type of cell-binding protein. They then tracked the stem cells as they grew using a high-resolution, fluorescent microscope. The researchers also repeated the same experiment using another cell-binding protein to investigate if cell-binding proteins also affected stem cell development within the hydrogels.

To their surprise, Alges team found that for both types of cell-binding proteins, the MAP hydrogels that degraded the fastest had the largest population of stem cells. Furthermore, the cells were changing the shape of the MAP hydrogel as they spread and claimed more territory.

In the intact MAP hydrogel, we could still see the spherical microbeads and the material was quite undamaged, Alge said. By contrast, the cells were making ridges and grooves in the degrading MAP hydrogels, dynamically remodeling their environment.

The researchers also found that as the stem cells grew, the quantity of bone proteins produced by the growing stem cells depended on which cell-binding protein was initially used in the MAP hydrogel.

Alge noted that the insight gained through their study will greatly inform further research and development in MAP hydrogels for stem-cell therapies.

Although MAP hydrogel degradability profoundly affects the growth of the stem cells, we found that the interplay between the cell-binding proteins and the degradation is also important, he said. As we, as a field, make strides toward developing new MAP hydrogels for tissue engineering, we must look at the effects of both degradability and cell-binding proteins to best utilize these materials for regenerative medicine.

Other contributors to the research include Shangjing Xin from the Department of Biomedical Engineering at Texas A&M and Carl A. Gregory from the Institute for Regenerative Medicine at the Texas A&M Health Science Center.

This research was supported by funds from theNational Institute of Arthritis and Musculoskeletal and Skin Diseasesof the National Institutes of Health.

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Background

Today's biologic quarry is the hair follicle, depicted on the left. While we all take hair for granted (perhaps the lyric "you don't know what you got till it's gone" is applicable), it is a complex structure lying within the skin. Stem cells are responsible for its growth and coloration, more about them shortly, and the milieu of hormones, as well as cell mediators, controls where hair grows along with its texture. In addition to housing a sebaceous gland, hair follicles have muscles, the arrector pili, responsible for raising your hair, as in the phrase "hair-raising scare," which is a real thing.

Hair follicles go through stages of growth (anagen), rest (telogen), loss (catagen and exogen), as well as renewal (kenogen). The bulbous area at the bottom of the follicle contains those previously mentioned stem cells. Hair follicle stem cells (HFSC) derived embryologically from the same layer as our skin produces a new hair follicle. In contrast, melanocyte stem cells (MeSC) derived from the layer that forms our nervous system, provides pigment to color the hair. During anagen, these stem cells are active; otherwise, they just hang out.

The Study

Looking at the pictures of our recent Presidents over two-terms suggests that stress is involved. But how? To find an answer, the researchers made use of black-coated mice, in a series of increasingly focused experiments.

So yes, my children's antics did turn my hair grey, a hair color I have earned, but not directly. It required the assistance of my sympathetic nervous system. And it may explain why some people under stress retain their hair color; they may well have more of the melanocyte stem cells to burn through. It also points towards the belief that our autonomic nervous system, of which the sympathetics are one component, has a role in cell differentiation and tissue maintenance. Perhaps being more chill can adds days to your life as well as less grey in your hair.

[1] I attribute my hair loss, on the other hand, to my wife.

Source: Hyperactivation of sympathetic nerves drives depletion of melanocyte stem cells Nature DOI: 10.1038/s41586-020-1935-3

Image of hair follicle courtesy ofHelix84derivative work in Wikimedia

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Why Does Hair Turn Grey? - American Council on Science and Health

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There are two stories I would like to tell with this edition of Business Unusual, the first is about the Darpa funded research to build robots out of living cells, the second is the incredible history of the animal that was used to build the first biological robots - Platannas.

The Defense Advanced Research Projects Agency (DARPA) is an agency of the American Department of Defense. It has funded many projects for military projects that in time have come to be used for civilian applications. The best-known example is the predecessor of the internet.

Why a military agency would fund research into creating living robots might be concerning but the stated objectives include managing environmental clean-ups or improving drug delivery which certainly are worthy pursuits. Of greater concern, are the ethical questions that are raised by creating new forms of a living organism. At the moment the designs dont attempt to make them self-replicating but that is part of the future plans.

Robots typically are designed and programmed to perform a specific task. Until now they would have been constructed out of non-living materials. These robots are also designed for a specific task but created from living cells. The choice of cell and the specific construction determines what action or function the living robot can perform.

One function that was attempted was movement. Starting from scratch researchers used stem cells from a frog to create skin cells and heart cells. The heart cells are muscles and so can contract while heart cells are able to do so rhythmically. Using those properties a machine learning program was tasked with testing thousands of configurations to determine which design would use the least cells to achieve the motion required. Once the best designs were determined, the living robots were constructed by researchers manipulating individual cells under a microscope.

The tiny constructed robots demonstrated that living robots designed by computer could offer an alternative to traditionally constructed machines. Future versions would look to make the constructions more complex and eventually able to self replicate.

One intended function was using a swarm of living robots with the ability to decompose plastic to be used to remove microplastics in the ocean. That may be a long way off, but if it is to become a reality the best time to start working on it is now.

Another application might be to not find plastic in the sea, but cancers in your body. Your body is already very good at doing so, but as we age and at certain times of our lives it becomes more challenging to correctly identify and kill cancer cells when they are still only tiny tumours.

This would require building robots consisting of your own body cells arranged in a way to allow them to move through the body and specifically find the corrupted cells. Adding them in numbers as we age may reduce the chance of developing tumours or even help the body recover after exposure to damaging external factors like sun damage to your skin.

This too is a long way off, but if successful and added to the many other options for extending and improving our lives then the research is most welcome.

_Image credit: Wikipedia African clawed frog_

Setting the other issues relating to building living robots aside, you might wonder why a frog from South Africa was chosen to build the first living robots.

It was not a random choice but points to a fascinating history that makes this particular frog one that has helped humanity overcome medical issues on a number of occasions.

A pregnancy test these days simply requires peeing on a stick. The reaction to a specific hormone in the urine can be isolated in minutes and let you know if you are pregnant within days of it occurring. It was not always this easy, the first method we are aware of would see a potentially pregnant woman urinate on ungerminated wheat and barley and wait a week or so to see if it germinated. Incredibly it works and was first mentioned over 3 000 years ago by the Egyptians. It was scientifically tested in the 1960s and found to be 70% accurate.

There were a variety of other methods used most on the expectation that something in the urine of females could be used to confirm pregnancy. In the 1920s it was injecting urine into female rabbits that after a day would require the examination of the rabbit ovaries. If swollen the woman was pregnant. In order to do the examination the rabbit was always killed and so the search continued for a better option.

Enter Lancelot Hogben, an English researcher lecturing in Cape Town in the early 1930s. He advised a student to consider using the local platanna as a potential for use as a model organism for biological tests. His hunch proved correct with Hillel Shapiro and Harry Zwarenstein creating the test to use the frog to indicate pregnancy.

The frog would be injected and in hours if the woman was pregnant would produce eggs. Not only was it accurate, but it also would not harm the frog which was easy to keep in a lab and would live for over a decade. As a result, the remarkable frog was exported around the globe and provided the answer to the question, am I pregnant, to the largest population explosion in our history. Most baby boomers parents and indeed many baby boomers would have found out if they were pregnant thanks to this strange-footed frog.

Xenopus literally means strange foot, frogs typically dont have claws which is why the African clawed frog got the name and as for Platanna, that may be a reference to the frog being very flat - plat in Afrikaans.

Given its widespread use for pregnancy and acceptance as a good species for embryonic development when researchers attempted to clone an organism, this frog was once again a key in understanding the process. In 1958, Xenopus was cloned not from splitting an embryonic cell which was the original method, but by using the DNA from an adult specialised cell which replaced the original DNA in a frog egg. The method proved successful and paved the way to allow Dolly the sheep to be cloned from an adult sheep cell in 1996.

We owe a huge debt of gratitude to six species that for a variety of reasons have helped us understand biological processes and how best to deal with disease and the efficacy of drugs. There are nematode worms, fruit flies, zebrafish, chickens, mice and the African clawed toad.

These six animals are our real guinea pigs.

Image credit: Xenobot - Tuft University & University of Vermont

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Biological robots, that is a thing now - 702

Skin Stem Cells Comments Off on Biological robots, that is a thing now – 702 | February 5th, 2020

Thankfully, as a society we are now better aware of the importance of good mental health. Self-care has become a hotly talked about topic in recent years, with the power of yoga, meditation and journaling at the forefront of many discussions. However, whilst these activities do help to keep a lot of people grounded and happy, they aren't for everyone. It's super important to discover what type of self-care works best for you. For some, this might be an evening in, spent playing on some great bingo sites, while for others it might be going swimming, or taking time to cook up some delicious and healthy meals. We are all different and have different things that make us feel happy and relaxed. But, there are certainly a handful of general and simplistic things that make most of us feel our best.

Cut Back on Social Media

Without a doubt, there are lots of great benefits to social media, but too much screen time can leave us feeling disheartened and pretty blue. The constant barrage of perfectly filtered photos that appear on Instagram are bound to knock many people's self-esteem whether we consciously realise it or not. It's actually really difficult to go online and not compare yourself to others, so whilst it's nice to now and again see what our friends, colleagues and various different celebs are up too, too much time spent looking into the online lives of others is surely going to get you down in the long run. It is also thought that time spent on social media before bed can prevent us from getting a good night's sleep, which is another very important factor contributing to our health and wellness. It is sadly easy to miss out on living truly in the moment because of the distractions that our screens create. Staying away from social media more often in 2020 is without a doubt a kind thing to do for ourselves.

Get Exercising

Exercise is hugely important for both the health of our bodies and our minds, but that doesn't mean you have to hit the gym for hours on end in order to be kinder to yourself. There are many different types of exercise out there to choose from, from competitive sport, to jogging, to walking, to horse riding, to pilates, or even to running around a giant assault course if you so choose. There's a type of exercise out there suitable for everyone and getting into the habit of regular exercise will help to boost your overall mood and decrease your stress levels.

Eat Well

Like exercise, eating a healthy and well-balanced diet is not only important for the body but also the mind. Being deficient in certain nutrients, like magnesium for example, can contribute to feelings of anxiety and depression. Whether you are vegan, vegetarian, follow a keto diet or eat a bit of everything, it's important to understand what nutrients are in certain foods and make sure you eat sensibly and include a varied range of food types. Ordering in takeaways too often and snacking on too many sweets, crisps and chocolate can all too quickly end up taking its toll on your mental state as well as your physical state. However, it's of course important to allow yourself to indulge every now and then and not be too strict with yourself. Really, it's all about moderation.

Read, Watch Greats Films, Listen to Music You Love

Sometimes when we get into a bit of a rut, we forget to indulge in down time. Spending an evening reading a great book or watching our favourite film can really help us to unwind and feel re-energised. Listening to music on the way to and from work can also help to boost your mood and leave you feeling empowered.

Meet Up with Friends and Family

Spending time with the people we love and care about is so important to our mental well-being. It's an opportunity to get any worries off your chest and have a good laugh. Shutting yourself away from people is never a good thing in the long-term. If you don't have many close friends, which isn't at all uncommon in this day and age, then you can easily meet people who share the same interests as you at various different evening classes and clubs.

Being kinder to yourself should always be a priority. A lot of us beat ourselves up for a range of silly and ridiculous things, and we don't put enough time into making ourselves feel great. 2020 is the year to stop being mean to yourself and start helping yourself to feel empowered and truly content in life.

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Alternative Funding Options To Get Your Dream Business Off The Ground - SWAAY

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