Animal cells for a younger you
By JoanneRUSSELL25
THE contemporary age brings a lot of new things that leave people in awe, amazement, and sometimes, in disbelief and disagreement. One thing that the more advanced technology gave birth to is the controversial Stem Cell Therapy (SCT).
According to mayoclinic.org, SCT is the replacement of damaged or diseased stem cells by injecting or infusing healthy stems into your body.
An article from philstar.com also says that SCT replaces or supports ones degenerating tissues and organs. The stem cells used in this technology are capable of developing into different kinds of cells, thus, are also called master cells.
According to bethematch.org, the diseases that are treatable by SCT are leukemia, bone marrow diseases, inherited immune system disorders, and diseases with poorly functioning red blood cells.
SCT is also used as an anti-aging treatment. Some of the prominent Filipinos have used this therapy to maintain their youthful glow and energy.
In the Philippines, clinics offering SCT have sprouted like mushrooms due to its perceived benefits to the patients. In fact, Makati Medical Center has its Cellular Therapeutics Center, equipped with facilities from Germany, USA, and Japan.
In an article from makatimed.net, it was said that the center has an extensive range of services that boast the remarkable efficacy of stem cells.
Dr. Florencio Q. Lucero who started the use of adult SCT in the Philippines in 2006, was quoted in an article from inquirer.net saying that in the Philippines, most of the customers rich businessmen and public officials who are mostly males.
One of them is Manila Mayor Joseph Estrada. He had his SCT at a clinic in Germany called Villa Medica on April 2012. Another article from inquirer.net said that Estrada had 14 shots of blood from the donor animal, the unborn sheep, on his buttocks.
In the same article, Estrada was quoted saying he could sleep better, his knees are working better, and that his skin has shown its glow.
Read the original here:
Animal cells for a younger you
Global Cell Culture Protein Surface Coating Industry: Rising Focus towards Stem Cells Research to Trigger Market Growth
By JoanneRUSSELL25
Albany, NewYork (PRWEB) February 27, 2015
ResearchMoz has announced the addition of a recent study that presents the analysis of the cell culture protein surface coating market across the globe. The research report discusses the current scenario and development prospects of the global cell culture protein surface coating industry for the period of 2015 to 2019.
Read Complete Report With TOC @ http://www.researchmoz.us/global-cell-culture-protein-surface-coating-market-2015-2019-report.html
The research report, titled Global Cell Culture Protein Surface Coating Market, offers an analytical study, providing an in-depth assessment of the industry based on market trends, growth drivers as well as challenges. This is done taking various segments of the market into consideration. The report also forecasts that the worldwide cell culture protein surface coating industry will expand at a CAGR of 12.91% during the forecast period of 2014 to 2019.
Cell culture protein surface coating is defined as the coating process wherein cell culture surfaces are covered with extra-cellular matrix elements or with protein to improve in-vitro linkage and propagation in the cells.
The various kinds of proteins that are available in our surroundings are synthetic proteins, human-derived proteins, plant-derived proteins, and animal-derived proteins. Fibronectin, collagen, laminin, osteopontin, and vitronectin are some of the proteins that are utilized for cell culture protein surface coating. Cell culture protein surface coating assists in the development of several kinds of cells such as epithelial, endothelial, fibroblasts, muscle cells and myoblasts, leukocytes, CHO cell lines, and neurons.
The wide range of applications for cell culture protein surface coatings consist of enhanced adhesion of cells, better propagation and development of cells, cell matrix studies, morphogenesis studies, receptor-ligand binding studies, signal transduction studies, genetic engineering, differentiation of individual cell types, drug screening, and metabolic pathway studies.
Stem cells have high potential for the treatment of severe diseases such as cardiac ailments, neuro degenerative diseases, and even diabetes. This fact has resulted in the increase in demand for highly developed cell culture products for stem cell manufacturing and studies. Cell culture protein surface coating offers enhanced adhesion, propagation, and rapid development of cells during the period of isolation and cultivation.
The main factor that is adding to the growth of the global cell culture protein surface coating industry is increased focus of top market players towards stem cell research. However, the drawbacks of animal-derived protein surface coating is a factor that is soon becoming a matter of concern, hindering the growth of the cell culture protein surface coating market.
Top players of the cell culture protein surface coating industry are EMD Millipore, Thermo Fisher Scientific, Becton, Dickinson and Company, Corning, and Sigma-Aldrich.
See the original post:
Global Cell Culture Protein Surface Coating Industry: Rising Focus towards Stem Cells Research to Trigger Market Growth
The Lancet Haematology: Experts warn of stem cell underuse
By LizaAVILA
Since the first experimental bone marrow transplant over 50 years ago, more than one million hematopoietic stem cell transplantations (HSCT) have been performed in 75 countries, according to new research charting the remarkable growth in the worldwide use of HSCT, published in The Lancet Haematology journal.
However, the findings reveal striking variations between countries and regions in the use of this lifesaving procedure and high unmet need due to a chronic shortage of resources and donors that is putting lives at risk.
HSCT (also known as blood and marrow transplant) is most often used to treat diseases of the blood and several types of cancer such as multiple myeloma or leukaemia. For many people with these diseases the only possibility of a cure is to have a HSCT. The procedure provides healthy cells from either the patient (autologous transplantation) or from a healthy donor (allogeneic transplantation) to replace those lost to disease or chemotherapy.
Using data collected by the Worldwide Network for Blood and Marrow Transplantation (WBMT), Professor Dietger Niederwieser from the University Hospital Leipzig in Germany and international colleagues, systematically analysed the growth of HSCT and changes in its use in 194 WHO member countries since the first transplant in 1957. They also examined the link between macroeconomic factors (eg, gross national income and health care expenditure) and transplant frequencies per 10 million inhabitants in each country.
Although only a small number of centres had performed about 10000 transplants by 1985, this had risen to around 500000 ten years later, and doubled to more than 1 million transplants (42% allogeneic and 58% autologous) done at 1516 transplant centres across 75 countries by the end of December 2012 (see table 1 page 2).
Perhaps unsurprisingly, the study found that transplants are more common in countries with greater financial resources and more institutions with the resources and expertise to perform HSCT. Most of the HSCTs have been performed in Europe (53%), followed by the Americas (31%), South East Asia and Western Pacific (15%), and the Eastern Mediterranean and Africa (2%). The findings also reveal significant differences between HSCT use by donor type (autologous or allogeneic), indications for HSCT, and world region (See tables 2, 3, and 4 pages 4-6). For example, donor transplants in 2010 ranged in active countries from 0.4 per 10 million inhabitants in the Philippines and Vietnam to 506 in Israel (see figure 2B page 7).
Numbers of donor transplants have rapidly expanded in all regions without any signs of saturation (see table 1 page 2). This is likely to reflect substantial underuse of this therapy, say the authors, suggesting that more patients would have been treated with allogeneic transplantation had it been accessible, or had suitable donors been available.
In about 30% of cases, a genetically matched donor can be found from within a patient's family. The other 70% have to search for a matched volunteer from national and international registries. The report shows that numbers of countries with registries increased from 2 in 1987 to 57 in 2012, whilst volunteer donors rose from 3072 in 1987 to over 22 million in 2012. The international exchange of stem-cell products also increased to more than 10000 a year between 2006 and 2012, with substantial differences between countries in the amount of stem cells they import or export (see figure 2C page 7).
Despite these increases there are still too many patients who are unable to find a suitable donor. At any time around 1800 people in the UK are waiting for a blood stem cell donation, and over 37000 people are waiting worldwide. Moreover, less than half of the people in the UK diagnosed with a blood cancer ever find a suitable donor [1].
According to Professor Niederwieser, "Patients, many of them children, are facing a life and death situation. Ultimately they will die if they cannot get the treatment they need. All countries need to provide adequate infrastructure for patients and donors to make sure that everyone who needs a transplant gets one, rather than the present situation in which access remains restricted to countries and people with sufficient resources."[2]
Link:
The Lancet Haematology: Experts warn of stem cell underuse
Growth signal can influence cancer cells' vulnerability to drugs, study suggests
By NEVAGiles23
Exposure to TGF-beta prompts changes that help mouse tumor stem cells evade drugs
IMAGE:To see how the growth signal TGF-beta influences cancer cells, the researchers used a red tag (top) to mark mouse tumor stem cells that received the signal, and a green... view more
Credit: Laboratory of Mammalian Cell Biology and Development
In theory, a tumor is an army of clones, made up of many copies of the original cancerous cell. But tumor cells don't always act like duplicates, and their unpredictable behavior can create problems for treatment. For while some cells within a tumor succumb to anti-cancer drugs, others may survive to bring the cancer back to life once therapy has ended.
In a study published today (February 26) in Cell, researchers at Rockefeller University home in on one culprit that fuels this variable vulnerability within squamous cell cancers: exposure to a signal known as TGF-, given off by immune cells that congregate next to a tumor's blood vessels.
"There are several reasons why some cancer stem cells, the cells at the root of tumors and metastases, can withstand therapy meant to eradicate them. Our results point to the importance of the environment immediately surrounding the skin cancer stem cells, specifically, their exposure to the signal TGF-," says senior researcher Elaine Fuchs, Rebecca C. Lancefield Professor, head of the Robin Chemers Neustein Laboratory of Mammalian Cell Biology and Development and a Howard Hughes Medical Institute investigator. "Ultimately, we hope this new insight could lead to better means for preventing the recurrence of these life-threatening cancers, which can occur in the skin, head, neck, esophagus, and lung, and often evade treatment."
Her team, which included first author Naoki Oshimori, a postdoctoral research associate in the lab and lab technician Daniel Oristian, focused on squamous cell carcinomas in the skin of mice. Like many normal tissue stem cells, the stem cells that produce squamous cell tumors can be classified into two types: those that divide and proliferate rapidly, and those that do so more slowly. This has led scientists to wonder whether the more dormant stem cells in a tumor might evade cancer drugs.
To investigate this possibility, the team zeroed in on TGF- (transforming growth factor beta) which is known to restrict growth in many healthy tissues. The lab's previous research has shown that mice whose normal skin stem cells cannot respond to TGF- become susceptible to develop tumors that grow rapidly. Paradoxically, however, TGF- contributes to metastasis in many cancers. The researchers wanted to know: How can TGF- act both to suppress cancers and promote them?
By visualizing TGF- signaling within developing mouse tumors, the researchers found that the cancer stem cells located nearest to the blood vessels of the tumor receive a strong TGF- signal, while others further away don't receive any. To see this difference and its effects, they used a red tag to illuminate those cells exposed and responding to TGF-, and a green genetic tag, which they could switch on, to track the stem cells' progeny. Over time, they saw that TGF--responding stem cells proliferate more slowly but they simultaneously invade, scatter and move away from the tumor. The opposite was true of cancer stem cells too far away to receive TGF-, which proliferated rapidly, but were less invasive, growing as a tumor mass.
"We tested the implications for drug resistance by injecting cisplatin, a commonly used chemotherapy drug for these types of cancers, into the mice with tumors. While the drug killed off most of the TGF- nonresponding cancer cells, it left behind many of the responders," Oshimori says. "When the drug was withdrawn, the lingering TGF- responding cancer stem cells grew back the tumor."
More here:
Growth signal can influence cancer cells' vulnerability to drugs, study suggests
Graphene derivative interferes with seemingly invincible cancer stem cells
By LizaAVILA
While well known for its unique electromechanical properties, graphene may also prove key in preventing cancer tumor recurrence. A drawback of traditional cancer treatment with radiation and chemotherapy is that the primary developmental source of future tumors is not eradicated. Cancer stem cells, or CSCs, can survive treatment and give rise to recurring tumors, metatasis, and drug resistance after repeated treatments. Researchers from the University of Manchester and the University of Calabria have discovered that graphene oxides targets and neutralize CSCs in a manner that is not yet fully understood.
One CSC can develop into a ball of new CSCs called a tumor-sphere, or into new tumor cells, such as what happens in metastasis. They're immortal, divide rapidly, and resist stress. A potential solution? Graphene oxide, GO, which is an oxidized form of its well-known carbon cousin and soluble in many solvents.
For a complete look at the efficacy of GO across cancers, researchers used CSCs from six types of cancer: breast, pancreatic, lung, brain, ovarian and prostate. They also used normal skin cells to confirm that GO would not be toxic to the body.
After cells were treated for 48 hours with a GO solution, the researchers found that not only did GO interrupt the ability of CSCs in all cancer types to proliferate by forming spheres, but that GO was safe to the skin cells.
Dr Aravind Vijayaraghavan of the National Graphene Institute at the University of Manchester says that GO seems to force the cancer stem cells to differentiate into non-cancer stem cells. In this way, GO effectively takes the CSC out of commission for creating future tumors. Currently the theory is that GO interferes with the signalling pathways in the cell membranes, curbing the proliferation mechanism.
Interestingly, this graphene derivative had already been researched for as a targeted delivery vehicle in tumors, but has now been found to have an important effect itself on the tumor.
While the researchers acknowledge that the mechanisms at play need to be researched more before the material can be used to treat cancers, the ability to destroy cancer stem cells is an an important component of a cancer treatment protocol that kills existing tumors as well as shuts down future metatasis.
Vijayaraghavan and the Graphene Institute have previously made headlines as a recipient of research money from the Bill and Melinda Gates Foundation towards the development of a better condom. Their proposal, of course, used graphene.
The team's research was originally published in Oncotarget on February 24, 2015.
Source: University of Manchester
See the original post:
Graphene derivative interferes with seemingly invincible cancer stem cells
The Irvine Stem Cell Treatment Center Announces Adult Stem Cell Public Seminars in Riverside, Ontario, and Brea …
By NEVAGiles23
Riverside, ON and Brea CA (PRWEB) February 26, 2015
The Irvine Stem Cell Treatment Center announces a series of free public seminars on the use of adult stem cells for various degenerative and inflammatory conditions. They will be provided by Dr. Thomas A. Gionis, Surgeon-in-Chief.
The seminars will be held on Saturday, March 7, 2015, at 11:00 am, 1:00 pm and 3:00 pm at Courtyard Riverside Downtown / Marriott, 1510 University Avenue, Riverside, CA 92507; Tuesday, March 10, 2015, at 11:00 am, 1:00 pm and 3:00 pm at Ayres Suites Ontario at the Mills Mall, 4370 Mills Circle, Ontario, CA 91764; and Saturday, March 21, 2015, at 11:00 am, 1:00 pm and 3:00 pm at Embassy Suites Hotel, 900 E Birch Street, Brea, CA 92821. Please RSVP at (949) 679-3889.
The Irvine Stem Cell Treatment Center (Irvine and Westlake), along with sister affiliates, the Miami Stem Cell Treatment Center (Miami; Boca Raton; Orlando; The Villages, Florida) and the Manhattan Regenerative Medicine Medical Group (Manhattan, New York), abide by approved investigational protocols using adult adipose derived stem cells (ADSCs) which can be deployed to improve patients quality of life for a number of chronic, degenerative and inflammatory conditions and diseases. ADSCs are taken from the patients own adipose (fat) tissue (found within a cellular mixture called stromal vascular fraction (SVF)). ADSCs are exceptionally abundant in adipose tissue. The adipose tissue is obtained from the patient during a 15 minute mini-liposuction performed under local anesthesia in the doctors office. SVF is a protein-rich solution containing mononuclear cell lines (predominantly adult autologous mesenchymal stem cells), macrophage cells, endothelial cells, red blood cells, and important Growth Factors that facilitate the stem cell process and promote their activity.
ADSCs are the bodys natural healing cells - they are recruited by chemical signals emitted by damaged tissues to repair and regenerate the bodys injured cells. The Irvine Stem Cell Treatment Center only uses Adult Autologous Stem Cells from a persons own fat No embryonic stem cells are used; and No bone marrow stem cells are used. Current areas of study include: Emphysema, COPD, Asthma, Heart Failure, Heart Attack, Parkinsons Disease, Stroke, Traumatic Brain Injury, Lou Gehrigs Disease, Multiple Sclerosis, Lupus, Rheumatoid Arthritis, Crohns Disease, Muscular Dystrophy, Inflammatory Myopathies, and degenerative orthopedic joint conditions (Knee, Shoulder, Hip, Spine). For more information, or if someone thinks they may be a candidate for one of the adult stem cell protocols offered by the Irvine Stem Cell Treatment Center, they may contact Dr. Gionis directly at (949) 679-3889, or see a complete list of the Centers study areas at: http://www.IrvineStemCellsUSA.com.
About the Irvine Stem Cell Treatment Center: The Irvine Stem Cell Treatment Center, along with sister affiliates, the Miami Stem Cell Treatment Center and the Manhattan Regenerative Medicine Medical Group, is an affiliate of the California Stem Cell Treatment Center / Cell Surgical Network (CSN); we are located in Irvine and Westlake, California. We provide care for people suffering from diseases that may be alleviated by access to adult stem cell based regenerative treatment. We utilize a fat transfer surgical technology to isolate and implant the patients own stem cells from a small quantity of fat harvested by a mini-liposuction on the same day. The investigational protocols utilized by the Irvine Stem Cell Treatment Center have been reviewed and approved by an IRB (Institutional Review Board) which is registered with the U.S. Department of Health, Office of Human Research Protection (OHRP); and our studies are registered with Clinicaltrials.gov, a service of the U.S. National Institutes of Health (NIH). For more information, visit our websites: http://www.IrvineStemCellsUSA.com, http://www.MiamiStemCellsUSA.com, or http://www.NYStemCellsUSA.com.
Read the original:
The Irvine Stem Cell Treatment Center Announces Adult Stem Cell Public Seminars in Riverside, Ontario, and Brea ...
Stem cell therapy a boon to Parkinson's patients
By raymumme
Bengaluru:Feb 27, 2015, DHNS
Two courses of stem cell therapy have helped Ashok Kumar, 59, who suffered from tremors and rigidity due to Parkinsons disease, recover completely, much to the joy of his family. The man was brought inside my cabin in a wheelchair. He was unable to even sit on the chair without support. Today, he walks independently. Stem cell therapy has made it possible for him, said Dr Naseem Sadiq, Director, Plexus Neuro and Stem Cell Research Centre, who began treating Kumar in October, last year.
Previously, medication and surgical procedure were the only treatment option for Parkinsons disease. Medication in the long-term often lacks effectiveness and may cause side effects, while surgery is not always feasible. Lately, stem cell therapy has turned out to be a boon for patients with Parkinsons, Dr Sadiq said.
Kumar is among the few who have benefited from stem cell therapy. However, though the State has been reporting an increase in the number of registered stem cell donors, it is far behind sufficient as the genetic match between donor and recipient could be anywhere between one in 10,000 and one in two million, according to experts.
Speaking to Deccan Herald, Raghu Rajgopal, co-founder, Datri, a registry for stem cell donation, said, The response we get from Karnataka when we conduct stem cell camps is great. We see a lot of people and registering with us.
As many as 6,000 people have registered from the State under the Datri registry. A total of 72,000 people have registered across the country. In Kerala, 11,000 have signed up, the highest so far, he said.
Among the common myths are that by donating stem cells one turns infertile and weak, have increased chances of cancer and also that there would be excess loss of blood, he said.
According to studies, over one lakh people are diagnosed with Leukemia (blood cancer) and other blood disorders every year in India. The Indian Council of Medical Research has predicted that by the end of 2015, Leukemia cases will reach an estimated 1,17,649 and 1,32,574 by 2020. Stem cell therapy is a widely used treatment mechanism for Leukemia.
Go to Top
Read this article:
Stem cell therapy a boon to Parkinson's patients
Stem cell therapy a boon for Parkinson patients
By Dr. Matthew Watson
Bengaluru, Feb 25, 2015, dhns:
Two courses of stem cell therapy have helped Ashok Kumar, 59, who suffered from tremors and rigidity due to Parkinsons disease, recover completely, much to the joy of his family.
The man was brought inside my cabin in a wheelchair. He was unable to even sit on the chair without support. Today, he walks independently. Stem cell therapy has made it possible for him, said Dr Naseem Sadiq, Director, Plexus Neuro and Stem Cell Research Centre, who began treating Kumar in October, last year.
Previously, medication and surgical procedure were the only treatment option for Parkinsons disease. Medication in the long-term often lacks effectiveness and may cause side effects, while surgery is not always feasible. Lately, stem cell therapy has turned out to be a boon for patients with Parkinsons, Dr Sadiq said.
Kumar is among the few who have benefited from stem cell therapy. However, though the State has been reporting an increase in the number of registered stem cell donors, it is far behind sufficient as the genetic match between donor and recipient could be anywhere between one in 10,000 and one in two million, according to experts.
Speaking to Deccan Herald, Raghu Rajgopal, co-founder, Datri, a registry for stem cell donation, said, The response we get from Karnataka when we conduct stem cell camps is great. We see a lot of people and registering with us.
As many as 6,000 people have registered from the State under the Datri registry. A total of 72,000 people have registered across the country. In Kerala, 11,000 have signed up, the highest so far, he said.
Among the common myths are that by donating stem cells one turns infertile and weak, have increased chances of cancer and also that there would be excess loss of blood, he said.
According to studies, over one lakh people are diagnosed with Leukemia (blood cancer) and other blood disorders every year in India.
The Indian Council of Medical Research has predicted that by the end of 2015, Leukemia cases will reach an estimated 1,17,649 and 1,32,574 by 2020. Stem cell therapy is a widely used treatment mechanism for Leukemia.
See original here:
Stem cell therapy a boon for Parkinson patients
Sperm and egg created from skin cells of two same sex adults
By Sykes24Tracey
February 25, 2015
Credit: Thinkstock
Chuck Bednar for redOrbit.com @BednarChuck
Scientists from the UK and Israel have demonstrated for the first time that it is possible to make human egg and sperm cells using skin from two adults of the same sex a breakthrough that may make it possible for same-sex couples to have children with shared DNA.
The research, which was funded by the Wellcome Trust, was completed at Cambridge University with the assistance of experts from the Weizmann Institute of Science, Cambridge News reported on Monday. They were able to use stem cell lines from embryos and from five different adults (a total of 10 different donor sources) to successfully create germ-cell lines.
According to CBS Atlanta, the experiment had previously been successful in creating live baby mice, but this new study marks the first time in which engineered human cells were found to be an identical match to aborted fetuses. It also marks the first time that human stem and skin cells were combined to form entirely new germ-cell lines.
[STORY: FDA reconsidering ban on homosexual, bisexual blood donors]
We have succeeded in the first and most important step of this process, which is to show we can make these very early human stem cells in a dish, Azim Surani, project leader at the Wellcome Trust and a professor of physiology and reproduction at Cambridge, told The Sunday Times.
Hope for those who cant conceive
The key to the process was SOX17, a master gene which typically works to direct stem cells to form whatever type of tissue or organ is required. Their new process works by manipulating this gene so that it becomes part of a primordial germ cell specification (causing it to create cells that will form an entire person), making it possible to create primordial germ cells in the lab.
Read more here:
Sperm and egg created from skin cells of two same sex adults
The Reason Same-Sex Couples May One Day Have Biological Kids
By raymumme
null World News Videos | US News VideosCopy
A stem cell research breakthrough might someday allow same-sex couples to have their own biological children.
Researchers at Cambridge University in England have taken the first steps towards creating artificial sperm and eggs by reprogramming skin cells from adults and converting them into embryonic-like stem cells. The team then compared the engineered stem cells with human cells from fetuses to confirm they were in fact, identical.
The researchers published their findings in the journal Cell earlier this week, stressing that its early days for this type of research.
We have succeeded in the first and most important step of the process, Dr. Jacob Hanna, an investigator with the Weizmann Institute of Science in Israel, told ABC News.
Hanna said the team will now attempt to complete the process by creating fully developed artificial sperm and eggs, either in a dish or by implanting them in a rodent. Once this is achieved, the technique could become useful for any individual with fertility problems, he said, including couples of the same sex.
"It has already caused interest from gay groups because of the possibility of making egg and sperm cells from parents of the same sex," Hanna said.
However, the prospect of creating a baby by these artificial means alone is probably a long way off, Hanna said.
It is really important to emphasize that while this scenario might be technically possible and feasible, it is remote at this stage and many challenges need to be overcome, he said. Further, there are very serious ethical and safety issues to be considered when and if such scenarios become considered in the distant future.
The research was funded by the Wellcome Trust and the Britain Israel Research and Academic Exchange Partnership.
Read this article:
The Reason Same-Sex Couples May One Day Have Biological Kids
Supreme Court rejects stem cell patent case
By Sykes24Tracey
Jeanne Loring holds a petri dish with induced pluripotent stem cells from a Parkinsons patient.
A nine-year legal challenge to human embryonic stem cell patents ended Tuesday, when the Supreme Court declined to hear the case.
The decision means the Wisconsin Alumni Research Foundation, or WARF, will get to keep its patent rights for the cells, which were discovered in 1998 by University of Wisconsin - Madison scientist James Thompson.
However, the challengers succeeded in preventing WARF from gaining rights over another important type of stem cells called induced pluripotent stem cells, said Jeanne Loring, a stem cell scientist at The Scripps Research Institute in La Jolla who was part of a coalition contesting the WARF patents.
IPS cells act much like human embryonic stem cells, and are being researched as an alternative for stem cell therapy. Loring is working with a group that seeks to use them to treat Parkinson's disease.
WARF maintains it has the right to license use of human embryonic stem cells, because Thompson developed the methods to isolate them from embryos, which had not been previously done. Loring said the derivation is an obvious extension of methods used to derive non-primate embryonic stem cells, and therefore not patentable.
Loring and two public interest groups, Consumer Watchdog and the Public Patent Foundation, challenged the patents in 2006, and in 2007 succeeded in narrowing WARF's claims to exclude the IPS cells. Loring and the groups continued the challenge on the grounds that as a product of nature, human embryonic stem cells are not patentable.
The U.S. Patent and Trade Office turned down that challenge, and the case reached the Supreme Court last year. By not hearing the case, the Supreme Court let that decision stand.
"They still own human embryonic stem cells," Loring said. "But the way their patents were originally written, they would have also been able to own IPS cells. If there's one success that I would point to, that was worth all the effort, it's that they can't. And the reason they can't is because we challenged the patent."
Calls and an email sent Tuesday to WARF headquarters in Madison, Wis., were not immediately returned.
Read more:
Supreme Court rejects stem cell patent case
New Commentary from Asymmetrex LLC Director Anticipates Forthcoming E-Book on Stem Cell Genetic Fidelity
By LizaAVILA
Boston, MA (PRWEB) February 25, 2015
Anyone familiar with the founding principles of Asymmetrex, LLC will appreciate the new editorial from its director and the collection of authors he assembled as Associate Editor for the Frontiers Research Topic, titled Stem Cell Genetic Fidelity. Both the introductory editorial and the individual articles are currently available online, ahead of issue in the form of the Frontiers e-book later this year.
Central to the stem cell mechanisms investigated and reviewed by the nine articles is the still controversial proposal of immortal strands in adult tissue stem cells. Based on the experimental observations of K. Gordon Lark in the 1960s, John Cairns predicted the existence of immortal strands of the DNA genetic material about a decade later.
In studies with cultured mouse tissues and plant root tips, Lark had noted that when some cells divided, they seemed to violate well-established genetic laws. These were the Mendelian laws of inheritance, name after Gregor Mendel, who laid their foundation. Each of the 46 human chromosomes has two complementary strands of DNA. One DNA strand is older than the other, because it was used as the template for copying the other. As a result of this inherent age difference in chromosome DNA strands, when the two DNA strands are split to make two new chromosomes before cell division to produce two new cells one chromosome in each of the 46 pairs of new chromosomes has the oldest DNA strand.
Mendels laws maintain that each new sister cell should randomly get a similar number of chromosomes with the oldest DNA strands. But Cairns hypothesized that adult tissue stem cells had a mechanism to ignore Mendels laws. Instead, one of the two cells produced by an asymmetric stem cell division retained all, and only, the chromosomes with the oldest DNA strands. Cairns called these immortal strands. By continuously retaining the same complete set of oldest template DNA strands, Cairns envisioned that tissue stem cells could significantly reduce their rate of accumulation of carcinogenic mutations, which primarily occur by chance when DNA is being copied.
Cairns presented his concept of immortal strands in tissue stem cells in a 1975 report to account for a large discrepancy that he had noted between human cancer rates and human cell mutation rates. He estimated that human cancer rates, though still undesirable, fell far short of expectations based on generally known rates of human cell mutation.
Whereas some scientists continue to view Cairns immortal strand hypothesis as folly, others consider it genius. In the last decade, progress in evidence for immortal strands in stem cells of diverse animal tissues and animal species accelerated greatly. However, little progress has occurred in defining their role in normal tissue stem cells or diseases like cancer.
In his new editorial, Sherley reveals that he is firmly in the camp that views the immortal strand hypothesis as genius. Before founding Asymmetrex, as a laboratory head in two different independent research institutes Fox Chase Cancer Center and Boston Biomedical Research Institute and at the Massachusetts Institute of Technology he developed new tools and approaches for investigating immortal strand functions, which are now a focus for commercial development in the new company. Immortal strands and cellular factors associated with them have significant potential to provide specific biomarkers for tissue stem cells. There is a significant unmet need for such invaluable tools in stem cell research, drug development, and regenerative medicine.
About Asymmetrex (http://asymmetrex.com/)
Asymmetrex, LLC is a Massachusetts life sciences company with a focus on developing technologies to advance stem cell medicine. Asymmetrexs founder and director, James L. Sherley, M.D., Ph.D. is an internationally recognized expert on the unique properties of adult tissue stem cells. The companys patent portfolio contains biotechnologies that solve the two main technical problems production and quantification that have stood in the way of successful commercialization of human adult tissue stem cells for regenerative medicine and drug development. In addition, the portfolio includes novel technologies for isolating cancer stem cells and producing induced pluripotent stem cells for disease research purposes. Currently, Asymmetrexs focus is employing its technological advantages to develop facile methods for monitoring adult stem cell number and function in clinically important human tissues.
See the rest here:
New Commentary from Asymmetrex LLC Director Anticipates Forthcoming E-Book on Stem Cell Genetic Fidelity
Researchers Hone in on Stem Cell that Speeds Healing of Stubborn Diabetes Wounds
By Dr. Matthew Watson
Durham, NC (PRWEB) February 25, 2015
A new study published in the latest issue of STEM CELLS Translational Medicine reveals how a particular type of stem cell generated from fat tissue may outperform other types of stem cells in speeding up the healing of wounds caused by type 1 diabetes. In the study, ulcers in a mice model treated with these cells healed significantly faster than those treated with general types of stem cells.
Slow-healing wounds present one of the most common and perplexing complications associated with both type 1 and type 2 diabetes. If left untreated, they can lead to amputation, and even death. In fact, diabetes is the leading cause of non-traumatic lower limb amputation in the United States, according to the American Diabetes Association. Despite this, there are very few consistently effective treatments for speeding the wound-healing process in patients.
Addressing this issue, researchers at the University of Tokyo (UT) School of Medicine partnered with colleagues at the Research Center for Stem Cell Engineering, National Institute for Advanced Industrial Science and Technology (Ibaraki, Japan) to test whether a type of mesenchymal stem cell (MSC) called Muse, which is harvested from adult adipose tissue (that is, fat), might work better than other types of MSCs in treating diabetes wounds. Previous studies had shown that Muse which stands for multilineage differentiating stress-enduring cells do not have high proliferative activity, but they do generate multiple cell types of the three germ layers without inducing unfavorable tumors. Thus, Muse cells appear to be safer than other induced pluripotent or multipotent cells and might have better therapeutic potential than general (non-Muse) MSCs.
The study details how researchers isolated the Muse cells from human tissue and then injected them into skin ulcers in diabetic mice. Study leader Kotaro Yoshimura, M.D., of UTs Department of Plastic Surgery said that, After 14 days the mice treated with Muse-rich cells showed significantly accelerated wound healing compared to those treated with Muse-poor cells. The transplanted cells were integrated into the regenerated skin as vascular endothelial cells and other cells. However, they were not detected in the surrounding intact regions.
In fact, not only had the wounds of the mice treated with the Muse cells completely healed after the 14-day period, but the healed skin was thicker than that of the non-Muse treated wounds, too.
Were not sure yet why the Muse cells seem to work better, Dr. Yoshimura stated, but they expressed upregulated pluripotency markers and some angiogenic growth factors, and our animal results certainly suggest a clinical potential for them in the future. These cells can be achieved in large amounts with minimal morbidity and could be a practical tool for a variety of stem cell-depleted or ischemic conditions of various organs and tissues.
Fat tissue has been gaining attention as a practical source of adult stem cells, said Anthony Atala, M.D., Editor-in-Chief of STEM CELLS Translational Medicine and director of the Wake Forest Institute for Regenerative Medicine. This study suggests the future clinical potential for Muse cells.
###
The full article, Therapeutic Potential of Adipose-Derived SSEA-3-Positive Muse Cells for Treating Diabetic Skin Ulcers, can be accessed at http://www.stemcellstm.com.
See the article here:
Researchers Hone in on Stem Cell that Speeds Healing of Stubborn Diabetes Wounds
New study shows safer methods for stem cell culturing
By Dr. Matthew Watson
6 hours ago
A new study led by researchers at The Scripps Research Institute (TSRI) and the University of California (UC), San Diego School of Medicine shows that certain stem cell culture methods are associated with increased DNA mutations. The study points researchers toward safer and more robust methods of growing stem cells to treat disease and injury.
"This is about quality control; we're making sure these cells are safe and effective," said Jeanne Loring, a professor of developmental neurobiology at TSRI and senior author of the study with Louise Laurent, assistant professor at UC San Diego.
Laurent added, "The processes used to maintain and expand stem cell cultures for cell replacement therapies needs to be improved, and the resulting cells carefully tested before use."
The findings were published February 25 in the open-access journal PLOS ONE.
Growing Stem Cells
Because these human stem cells, called "pluripotent stem cells," can differentiate into many types of cells, they could be key to reversing degenerative diseases, such as Parkinson's disease, or repairing injured tissue, such as cardiac muscle after a heart attack. Stem cells are relatively rare in the body, however, so researchers must culture them in dishes.
While all cells run the risk of mutating when they divide, previous research from Loring and her colleagues suggested that stem cell culturing may select for mutations that favor faster cell growth and are sometimes associated with tumors.
"Most changes will not compromise the safety of the cells for therapy, but we need to monitor the cultures so that we know what sorts of changes take place," said the paper's first author Ibon Garitaonandia, a postdoctoral researcher working in Loring's lab at the time of the study.
How to Reduce Mutations
Rowan Researcher Targets Stem Cell-Based Therapy for Rare Childhood Disease
By JoanneRUSSELL25
Contact Information
Available for logged-in reporters only
Newswise STRATFORD Paola Leone, PhD, the director of the Cell and Gene Therapy Center and a professor of Cell Biology at the Rowan University School of Osteopathic Medicine (RowanSOM), has been awarded a three-year, $477,000 grant from the National Institute of Neurological Disorders and Stroke (NINDS) to develop a stem cell-based therapy for Canavan disease, a rare but devastating neurological disorder in children that typically takes a childs life by age 10.
Canavan disease is a fatal, inherited disease caused by a mutation in the aspartaocylase gene, Dr. Leone explained. The disease is characterized by progressive and severe brain atrophy that manifests in delayed development, developmental regression, microcephaly, spasticity, seizures, visual impairment and short life expectancy. There, currently, is no treatment or cure for Canavan disease.
Under Dr. Leones direction, a team of RowanSOM researchers and students will examine the potential of stem cells for the treatment of Canavan disease in an animal model. This new study will build on the research teams preliminary data that demonstrated the successful engraftment of stem cells in animal models.
Our project will generate pre-clinical data to support the development of a stem-cell based therapy for Canavan disease, Dr. Leone said. It will also provide an important opportunity for a new generation of clinical researchers. Both undergraduate and graduate students will participate in this project, providing them with valuable experience to work with an extremely promising therapeutic intervention.
The symptoms of Canavan disease usually appear within the first six months of a childs life. The disease is caused by a genetic mutation that stops cells, called oligodendrocytes, from developing myelin, the fatty substance that coats the nerves in the brain. Without the protective myelin covering, the nerves do not form properly, causing the brain to atrophy. The preliminary research that Dr. Leone conducted showed that the engraftment of stem cells promoted significant recovery of the myelin sheath surrounding the nerves.
Our research represents a significant departure from other studies that have focused solely on strategies to augment the loss of the aspartaocylase function that is highly reduced in the brains of these patients, Dr. Leone said. We believe that any strategy seeking to treat Canavan must include a way to restore the myelin development that is disrupted in children with this disease.
This research is supported by the NINDS of the National Institutes of Health, under grant number 1R15NS088763-01A1.
Journalists wishing to speak with Dr. Leone, should contact Jerry Carey, Rowan University Media and Public Relations at 856-566-6171 or at careyge@rowan.edu.
View post:
Rowan Researcher Targets Stem Cell-Based Therapy for Rare Childhood Disease
Global Stem Cells Group, Inc. Announces Launch of New Stem Cell Harvesting Products
By NEVAGiles23
MIAMI (PRWEB) February 24, 2015
In answer to industry-wide requests for more accessible solutions to stem cell procedures, Global Stem Cells Group, Inc. and Regenestem have announced the launch of two new stem cell harvesting and isolation kits.
The Regenestem BMAC 60 mL concentrating system is a high performing concentrating system for bone marrow aspirate. This kit come complete with a bone marrow filter, a bone marrow aspirating needle and a locking syringe to help maintain suction during the aspirating process. The BMAC 60 kit includes bone marrow concentrate up to 11 times the baseline values, to produce 6-8 mL BMC from a 60 mL sample of bone marrow aspirate.
The Regenestem 60 mL Adipose Derived Stem Cell (ADSC) Kit System includes all the tools and consumables for the extraction of adipose-derived stem cells from 60 mL of lipoaspirated fat. The ADSC kit is currently being used in clinical procedures for lung disease, intra-articular injections for osteoarthritis of the knee and hip, cosmetic surgery and acne scarring, dermal injections, stem cell enriched fat transfer, wounds, chronic ulcers and other chronic conditions. The enzymatic component used to obtain the stromal vascular fraction (SVF) is provided by Adistem.
The Regenestem ADSC Kit System is available in three versions:
Gold, to conduct in-office stem cell procedures with certified GMP components for reliable performance.
Platinum, with all the benefits of the basic (gold) kit plus a sterilized PRP close system with vortex engineering method to minimize platelet loss. One set of individually packed Tulip Gems instruments are added for safe and precise adipose tissue extraction.
Titanium, the perfect state-of-the-art deluxe kit system used by a growing number of regenerative medicine physicians and recognized as the perfect preparation for virtually all clinical applications. Built with Emcyte technology, the Regenestem Titanium kit has been independently reviewed and proven in various critical performance points that make a difference in patient outcomes.
The Titanium kit is currently being used in topical procedures such as intra-articular injection for osteoarthritis of the knee and hip, cosmetic surgery and acne scarring, dermal injection, stem cell enriched fat transfer, wounds chronic ulcers among other chronic conditions.
According to Global Stem Cells Group CEO Benito Novas, the entire Global Stem Cells Group faculty and scientific advisory board worked together to develop the kits.
Continued here:
Global Stem Cells Group, Inc. Announces Launch of New Stem Cell Harvesting Products
Kyoto University Hospital to open iPS cell therapy center in 2019
By LizaAVILA
Kyoto University Hospital says it will open a center to conduct clinical studies on induced pluripotent stem cell therapies in 2019 year.
Officials said the 30-bed ward will test the efficacy and safety of the therapies on volunteer patients.
The hospital aims to break ground at the site next February and complete construction by September 2019.
As an iPS cell research hub, we hope to apply (the cells) to groundbreaking therapies and make developments in the field of drug discovery, the hospital said in a statement Monday.
Ongoing research on iPS cells at Kyoto University includes turning the cells into dopamine-releasing neurons for transplant into patients with Parkinsons disease, and creating a formulation of platelets that helps blood to clot.
Professor Shinya Yamanaka, who shared the 2012 Nobel Prize in medicine, leads the existing iPS cell research center at Kyoto University.
Read the original post:
Kyoto University Hospital to open iPS cell therapy center in 2019
Stem cellrecruiting hydrogels based on self-assembling peptides for tissue regeneration
By Sykes24Tracey
Figure 1. Stem CellRecruiting Hydrogels Based on Self-Assembling Peptides
The Materials for Biomaterials session Best Contribution Award presented by Steve Zinkle goes to Yongmee Jung, Korea Institute of Science and Technology, for the oral presentation Self-assembling peptide nanofiber coupled with neuropeptide substance P for stem cell recruitment.
As a winner of the above Materials Today Asia Contribution Award, Yongmee Jung and Soo Hyun Kim discuss their work with us.
Stem cellbased therapy in regenerative medicine may be one of the best approaches for wound healing and tissue regeneration. Many studies have shown that the trophic effects of transplanted stem cells enhance the treatment of lung, liver, and skin injuries, as well as myocardial infarction [1]. However, although stem cell transplantationincluding cell isolation and cell culture in vitroresults in a good prognosis, there are some limitations, such as high cost, invasiveness, the shortage of cell sources, and the risk of tumorigenesis [2]. To overcome these limitations, technologies for recruiting endogenous stem cells to the site of injury may provide another promising approach, mimicking in situ tissue regeneration by the bodys own wound healing process. Unlike cell-based therapies, this strategy does not need outside cell sources or in vitro cell manipulation. Host stem cells can be mobilized using granulocyte colony-stimulating factor (G-CSF), granulocyte-macrophage colony-stimulating factor (GM-CSF), or stromal cellderived factor-1 alpha (SDF-1), each of which upregulates adhesion molecules and activates chemokine signaling [3]. It has been reported that substance P (SP), another candidate for recruitment of host stem cells, is an injury-inducible factor that acts early in the wound healing process to mobilize CD29+ stromal-like cells, and thus could be used for tissue regeneration [1].
To achieve effective delivery of SP for an extended period and improve the engraftment of recruited cells at the injured site, scaffolds can be constructed from hydrogels with microenvironments similar to the native tissue. Of particular interest are self-assembling peptide (SAP)based hydrogels, which are typically composed of alternating hydrophilic and hydrophobic amino acids organized into 510 nm fibers and assembled into three-dimensional nanofibrous structures under in vivo conditions [4]. The resulting structure resembles nanostructured environments such as collagen hierarchical structures that promote adhesion, proliferation, and differentiation of cells. Furthermore, SAP is versatile enough to incorporate specific motifs based on the desired function with chemical coupling by peptide bond [5].
Recently, we designed bioactive peptide hydrogels that are able to recruit mesenchymal stem cells by coupling SAP to SP. The mixture of SAP and SP-coupled SAP can successfully maintain its nanofibrous structure and be assembled into a 3D scaffold at physiological conditions.
We confirmed the ability of this SP-coupled SAP to attract stem cells both by in vitro cell migration assay and by in vivo real-time cell tracking assay. In vitro, many cells migrated through the 8-m membrane pores and settled onto the lower surfaces of Transwell plates under the influence of SP-coupled SAP. In vivo, we injected the hydrogels into the subcutaneous tissue in nude mice and injected labeled human mesenchymal stem cells (hMSCs) into the tail vein. The migration of the injected cells was tracked in real time using a multispectral imaging system, which demonstrated that the labeled hMSCs supplied via intravenous injection were recruited to the hydrogel-injected site (Figure) [6]. We then applied our bioactive peptide hydrogels, SAP coupled with SP, to several disease models to evaluate their stem cell recruitment abilities and treatment effects on injured tissues. We have studied the effects of these hydrogels on animal models of ischemic hind limb, calvarial defect, myocardial infarction, osteoarthritis, and skin wounds. We observed in each case that in the group treated with SP-coupled peptide hydrogels, many MSCs were recruited to the injured sites, and cell apoptosis and fibrosis of injured tissues were both conspicuously decreased. Moreover, the regeneration of site-specific tissues was enhanced with the injection of stem cellrecruiting peptide hydrogels in various defect models, and tissue functions were accordingly improved without cell transplantation [2, 5, 6]. In conclusion, we have developed injectable bioactive peptides that can recruit MSCs and have evaluated their therapeutic potential on animal defect models. By applying these peptide hydrogels, we were able to deliver SP over an extended period and provide 3D microenvironments to injured regions, allowing bioactive peptides to recruit MSCs successfully, prevent cell apoptosis, and promote tissue regeneration leading to a full recovery of defects. We expect that stem cellrecruiting hydrogels based on SAP could be one of the most powerful tools for tissue regeneration without cell transplantation through the recruitment of endogenous stem cells.
This work was supported by the KIST Institutional Program
1. H. S. Hong, et al., Nat. Med., 15 (2009), pp. 425435 2. J. H. Kim, et al., Biomaterials, 34 (2013), pp. 16571668 3. T. Lapidot, I. Petit, Exp. Hematol., 30 (2002), pp. 973981 4. S. Zhang, et al., Semin. Cancer Biol., 15 (5) (2005), pp. 413420 5. J. E. Kim, et al., Int. J. Nanomedicine, 9 (Suppl 1) (2014), pp. 141157 6. S. H. Kim, et al., Tissue Eng. Part A, E-Pub (2014)
Original post:
Stem cellrecruiting hydrogels based on self-assembling peptides for tissue regeneration
Stem cell breakthrough may allow same gender couples to create babies
By daniellenierenberg
Researchers from Cambridge University and Israels Weizmann Institute of Science are claiming a stem cell research breakthrough that would allow a baby to be created from the skin cells from two adults, no matter their gender. This potentially allows for infertile couples to have their own children without resorting to sperm or egg donors, and may provide the means for same sex couples to produce their own babies.
Previously only successful in experiments on mice, the new research has been conducted on human cells for the first time. In this study, the researchers paired stem cell lines from embryos with the skin of a range of different adults, with the resultant cells compared to aborted fetuses to determine an identical match.
Techniques devised to create same-sex offspring are not new. Some experiments involve the manipulation of fibroblasts in mice resulting in offspring with the genetic traits of multiple male mice, whilst others have used bone marrow stem cells extracted from males to trigger spermatogonia.
However, in this latest research, stem cells and adult human skin have been combined for the first time to create an entire new germ-cell line (that is, cells that will become embryos). Derived from ten different donor sources, the new germ-cell lines were created from 10 different donor sources five embryos and five adults.
Intrinsic to this pairing was the SOX17 gene. A master gene, SOX17 usually works to direct stem cells to be programmed to become whatever organs or body parts are required in other research this techniques has been used to create lung, gut, and pancreas cells.
The manipulation of the gene to be part of a primordial germ cell specification (that is, direct it to create cells that will become an entire human), however, is a new development pioneered by the team and has allowed them to follow this discovery with actually making primordial germ cells in the lab. This stage in a babys development is known as "specification", and once primordial germ cells become specified, they continue to develop inexorably toward precursor sperm or ova cells.
Creating human egg and sperm cells from the skin of two adults of the same gender immediately raises the possibility of same sex couples procreating and offering an alternate pregnancy path for infertile couples. Of course, it also opens the door to a new minefield of ethical and moral implications, but the researchers note that many people may potentially benefit from the technique.
The results of the research were published in the online journal Cell.
Read this article:
Stem cell breakthrough may allow same gender couples to create babies
Scientists claim they can create babies for gay couples
By JoanneRUSSELL25
A scientific breakthrough gets gay groups all excited about the possibility of creating egg and sperm cells from parents of the same sex.
CAMBRIDGE: Scientists at the University of Cambridge in collaboration with the Weitzmann Institute in Israel successfully used skin from five adults to artificially create germ cells or stem cells, responsible for making sperm and eggs in the body.
According to The Daily Mail UK, Jacob Hanna, the specialist leading the projects Israeli arm claimed that the technique could be developed to create a baby, in just two years time.
They also reported Cambridge Universitys Professor Azim Surani as saying:We have succeeded in the first and most important step of this process, which is to show we can make these very early human stem cells in a dish.
The Daily Nation, however, explained that what the Cambridge researchers did was identify the gene which determined which cells would become sperm and egg, and harvested them by culturing them with human embryonic stem cells, for five days.
When an egg is fertilised by a sperm, they develop into foetus or the placenta. Some become stem cells, while others become germ cells and subsequently sperm and eggs. But this isnt the same as artificial sperm and eggs.
For now, Surani said the process would contribute to scientists understanding human genetics and diseases related to aging, as they discovered that one of the occurrences in germ cells included epigenetic mutations, where cell mistakes that occur with age, were wiped out so the cell is regenerated and reset.
The views expressed in the contents are those of our users and do not necessarily reflect the views of FMT.
See the original post:
Scientists claim they can create babies for gay couples