JUPITER, Fla., Jan. 31, 2012 /PRNewswire/ -- BioRestorative Therapies, Inc. (OTCQB: BRTX) ("BRT") today announced that it has entered into a License Agreement with Regenerative Sciences, LLC ("RS") with respect to certain stem cell-related technology and clinical treatment procedures developed by RS. The treatment is an advanced stem cell injection procedure that may offer relief from lower back pain, buttock and leg pain, or numbness and tingling in the legs or feet as a result of bulging and herniated discs.

To date, over 40 procedures have been performed on patients. It is a minimally invasive out-patient procedure, and objective MRI data and patient outcomes for this novel injection procedure show positive results with limited patient downtime. BRT intends to utilize the existing treatment and outcome data, as well as further research, to prepare for clinical trials in the United States.

Pursuant to the agreement, BRT will obtain an exclusive license to utilize or sub-license a certain medical device for the administration of specific cells and/or cell products to the precise locations within the damaged disc and/or spine (and other parts of the body, if applicable) and an exclusive license to utilize or sublicense a certain method for culturing cells for use in repairing damaged areas. The agreement contemplates a closing of the license grant in March 2012, subject to the fulfillment of certain conditions. 

Mark Weinreb, Chairman and CEO of BRT, said, "This possible alternative to back surgery represents a large market for BRT once it begins offering the procedure to patients who might be facing spinal fusions or back surgery (which often times is unsuccessful). By delivering a particular cell population using a proprietary medical device that inserts a specialized needle into the disc and injects cells for repair and re-population, BRT hopes to revolutionize how degenerative disc disease will be treated." 

About BioRestorative Therapies, Inc.
BioRestorative Therapies, Inc.'s goal is to become a medical center of excellence using cell and tissue protocols, primarily involving a patient's own (autologous) adult stem cells (non-embryonic), allowing patients to undergo cellular-based treatments. In June 2011, the Company launched a technology that involves the use of a brown fat cell-based therapeutic/aesthetic program, known as the ThermoStem™ Program.  The ThermoStem™ Program will focus on treatments for obesity, weight loss, diabetes, hypertension, other metabolic disorders and cardiac deficiencies and will involve the study of stem cells, several genes, proteins and/or mechanisms that are related to these diseases and disorders.  As more and more cellular therapies become standard of care, the Company believes its strength will be its focus on the unity of medical and scientific explanations for clinical procedures and outcomes for future personal medical applications.  The Company also plans to offer and sell facial creams and products under the Stem Pearls™ brand.

This press release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. You are cautioned that such statements are subject to a multitude of risks and uncertainties that could cause future circumstances, events or results to differ materially from those projected in the forward-looking statements as a result of various factors and other risks, including those set forth in the Company's Form 10, as amended, filed with the Securities and Exchange Commission. You should consider these factors in evaluating the forward-looking statements included herein, and not place undue reliance on such statements. The forward-looking statements in this release are made as of the date hereof and the Company undertakes no obligation to update such statements.

CONTACT:  Mark Weinreb, CEO, Tel: (561) 904-6070, Fax: (561) 429-5684

Read more here:
BioRestorative Therapies Signs License Agreement for Stem Cell Disc/Spine Procedure

Bypassing stem cells, mouse skin cells have been converted directly into cells that become the three main parts of the animal's nervous system, according to new research at the Stanford University School of Medicine.

The startling success of this method seems to refute the idea that "pluripotency" -- the ability of stem cells to become nearly any cell in the body -- is necessary for a cell to transform from one cell type to another.

It raises the possibility that embryonic stem cell research, as well as a related technique called "induced pluripotency," could be supplanted by a more direct way of generating cells for therapy or research.

"Not only do these cells appear functional in the laboratory, they also seem to be able to integrate ... in an animal model," said lead author and graduate student Ernesto Lujan.

The study was published online Jan. 30 in the Proceedings of the National Academy of Sciences.

The finding implies that it may one day be possible to generate a variety of neural-system cells for transplantation that would perfectly match a human patient.

While much research has been devoted to harnessing the potential of embryonic stem cells, taking those cells from an embryo and then implanting them in a patient could prove difficult because they would not match genetically.

The Stanford team is working to replicate the work with skin cells from adult mice and humans.

But Lujan emphasized that

much more research is needed before any human transplantation experiments could be conducted.

In the meantime, however, the ability to quickly and efficiently generate cells -- grown in mass quantities in the laboratory, and maintained over time -- will be valuable in disease and drug-targeting studies.

Contact Lisa M. Krieger at 408-920-5565.

See the original post here:
Stanford scientists bypass stem cells to create nervous system cells

The federal government is pledging up to $67.5 million for research into "personalized medicine," which tailors treatment to a patient's genetics and environment.

The funds will flow through Genome Canada, the Cancer Stem Cell Consortium and the Canadian Institutes of Health Research, the federal government's health research agency.

Federal Health Minister Leona Aglukkaq and Minister of State for Science Gary Goodyear made the announcement at the University of Ottawa's health campus Tuesday.

The field of personalized medicine is touted as having the potential to transform the way patients are treated. It looks at the genetic makeup of a person, the patient's environment and the exact course of a particular disease so that an appropriate and effective treatment can be tailored for that individual.

The idea is to move from a one-size-fits-all approach to one that is designed for a specific person and relies on the genetic signatures, or biomarkers, of both the patient and the disease.

Proponents of personalized medicine say it is likely to change the way drugs are developed, how medicines are prescribed and generally how illnesses are managed. They say it will shift the focus in health care from reaction to prevention, improve health outcomes, make drugs safer and mean fewer adverse drug reactions, and reduce costs to health-care systems.

"The potential to understand a person's genetic makeup and the specific character of their illness in order to best determine their treatment will significantly improve the quality of life for patients and their families and may show us the way to an improved health-care system and even save costs in certain circumstances," Aglukkaq said in a news release.

Research projects could last four years

The sequencing of the human genome paved the way for personalized medicine and there have been calls for more research funding so that the discoveries in laboratories can be translated further into the medical field so they will benefit patients more.

Identifying a person's genetic profile, for example, could then indicate a susceptibility to a certain disease, if the biomarkers of that disease have also been discovered. If people know they are genetically at risk of an illness they can take actions to prevent it, and their health-care providers can monitor for it.

Cancer patients could be pre-screened to determine if chemotherapy would work for them, which could not only save a lot of money on expensive treatments but also prevent pain and suffering for patients.

Genome Canada is leading the research initiative, in collaboration with Cancer Stem Cell Consortium and CIHR which on Tuesday launched its Personalized Medicine Signature Initiative. CIHR is committing up to $22.5 million to the large-scale initiative with the other two partners, but it will be providing more funding for other projects under its personalized medicine program.

The research projects are aiming to bring together biomedical, clinical, population health, health economics, ethics and policy researchers to identify areas that are best suited to personalized medicine.

Oncology, cardiovascular diseases, neurodegenerative diseases, psychiatric disorders, diabetes and obesity, arthritis, pain, and Alzheimer’s disease are all considered to be areas that hold promise for personalized medicine.

Funding will also go to projects that are aimed at developing more evidence-based and cost-effective approaches to health care.

Researchers can get up to four years of funding, but 50 per cent of their requested funding must be matched from another source, such as a provincial government or from the academic or private sectors.

Genome Canada, CIHR and the cancer consortium will invest a maximum of $5 million in each individual project.

The successful applicants for the $67.5 million worth of funding won't be announced until December.

Read more:
'Personalized medicine' gets $67.5M research boost

15-01-2012 02:05 Spinal Cord Injury patient is able to walk again. - http://www.stemcellofamerica.com

Link:
Breakthrough Spinal Cord Injury Treatment - Stem Cell Of America - Video

MARLBOROUGH, Mass.--(BUSINESS WIRE)-- Advanced Cell Technology, Inc. (“ACT”; OTCBB: ACTC), a leader in the field of regenerative medicine, announced today that the Aberdeen Royal Infirmary, the largest of the Grampian University Hospitals in Scotland, has been confirmed as a site for its Phase 1/2 human clinical trial for Stargardt’s Macular Dystrophy (SMD) using retinal pigment epithelial (RPE) cells derived from human embryonic stem cells (hESCs). The Phase 1/2 trial is a prospective, open-label study designed to determine the safety and tolerability of the RPE cells following sub-retinal transplantation into patients with SMD.

“A leading medical institution in the United Kingdom, Aberdeen Royal Infirmary is an ideal partner for our European clinical trial for SMD,” said Gary Rabin, chairman and CEO of ACT. “Moreover, we are particularly pleased that the lead investigator is Dr. Noemi Lois, a leading expert in SMD. We continue to forge ties with some of the best eye surgeons and hospitals in the world and work towards bringing this cutting-edge therapy closer to fruition. Our preliminary results to date keep us optimistic that we are on the right path both in terms of our science and the clinical team we are working with, particularly eye surgeons such as Dr. Lois.”

Stargardt's Macular Dystrophy affects an estimated 80,000 to 100,000 patients in the U.S. and Europe, and causes progressive vision loss, usually starting in people between the ages of 10 to 20, although the disease onset can occur at any age. Eventually, blindness results from photoreceptor loss associated with degeneration in the pigmented layer of the retina, the retinal pigment epithelium. “The first Stargardt’s patient to be treated in the U.S. with stem cell-derived RPE cells was a patient who was already legally blind as a consequence of this disease” stated Dr. Robert Lanza M.D., the chief scientific officer at ACT. Preliminary results from the treatment of the first SMD patient were recently reported in The Lancet (23 January 2012) and have been characterized by experts in the field of regenerative medicine as providing early signs of safety and efficacy.

This approved SMD clinical trial that Dr. Lois and her team will participate in is a prospective, open-label study designed to determine the safety and tolerability of RPE cells derived from hESCs following sub-retinal transplantation to patients with advanced SMD, and is similar in design to the FDA-cleared US trial initiated in July 2011.

“It is an honor to have been designated as a site for this path-breaking clinical trial,” said Noemi Lois, M.D., Ph.D. “We could not be more pleased to be a part of this trial for a promising potential new treatment for SMD, using hESC-derived RPE cells.” Dr. Lois is a is a member of the Department of Ophthalmology, NHS Grampian, and associated to the University of Aberdeen, Scotland, United Kingdom. Dr. Lois practices at the Aberdeen Royal Infirmary; she is an Ophthalmologist with special interest in Medical retina and Retinal surgery.

On January 23, 2012, the company announced that the first patient in this SMD clinical trial in Europe had been treated at Moorfields Eye Hospital in London.

About Advanced Cell Technology, Inc.

Advanced Cell Technology, Inc. is a biotechnology company applying cellular technology in the field of regenerative medicine. For more information, visit http://www.advancedcell.com.

Forward-Looking Statements

Statements in this news release regarding future financial and operating results, future growth in research and development programs, potential applications of our technology, opportunities for the company and any other statements about the future expectations, beliefs, goals, plans, or prospects expressed by management constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any statements that are not statements of historical fact (including statements containing the words “will,” “believes,” “plans,” “anticipates,” “expects,” “estimates,” and similar expressions) should also be considered to be forward-looking statements. There are a number of important factors that could cause actual results or events to differ materially from those indicated by such forward-looking statements, including: limited operating history, need for future capital, risks inherent in the development and commercialization of potential products, protection of our intellectual property, and economic conditions generally. Additional information on potential factors that could affect our results and other risks and uncertainties are detailed from time to time in the company’s periodic reports, including the report on Form 10-K for the year ended December 31, 2010. Forward-looking statements are based on the beliefs, opinions, and expectations of the company’s management at the time they are made, and the company does not assume any obligation to update its forward-looking statements if those beliefs, opinions, expectations, or other circumstances should change. Forward-looking statements are based on the beliefs, opinions, and expectations of the company’s management at the time they are made, and the company does not assume any obligation to update its forward-looking statements if those beliefs, opinions, expectations, or other circumstances should change. There can be no assurance that the Company’s clinical trials will be successful.

See the rest here:
ACT Announces Aberdeen Royal Infirmary in Scotland as Additional Site for Phase 1/2 Clinical Trial Using hESC-Derived ...

06-10-2011 17:25 A doctor becomes patient and gives his testimony on stem cell treatment he received to overcome heart failure.

See the original post:
Stem Cell Treatment for Heart Failure - Video

Of all the body’s organs, the human heart is probably the one most primed for performance and efficiency. Decade after decade, it continues to pump blood around our bodies. However, this performance optimisation comes at a high price: over the course of evolution, almost all of the body’s own regeneration mechanisms in the heart have become deactivated. As a result, a heart attack is a very serious event for patients; dead cardiac cells are irretrievably lost. The consequence of this is a permanent deterioration in the heart’s pumping power and in the patient’s quality of life.

In their attempt to develop a treatment for the repair of cardiac tissue, scientists are pursuing the aim of growing replacement tissue in the laboratory, which could then be used to produce replacement patches for the repair of damaged cardiac muscle. The reconstruction of a three-dimensional structure poses a challenge here. Experiments have already been carried out with many different materials that could provide a scaffold substance for the loading of cardiac muscle cells.

“Whether natural or artificial in origin, all of the tested fibres had serious disadvantages,” says Felix Engel, Research Group Leader at the Max Planck Institute for Heart and Lung Research in Bad Nauheim. “They were either too brittle, were attacked by the immune system or did not enable the heart muscle cells to adhere correctly to the fibres.” However, the scientists have now found a possible solution in Kharagpur, India.

At the university there, coin-sized disks are being produced from the cocoon of the tasar silkworm (Antheraea mylitta). According to Chinmoy Patra, an Indian scientist who now works in Engel’s laboratory, the fibre produced by the tasar silkworm displays several advantages over the other substances tested. “The surface has protein structures that facilitate the adhesion of heart muscle cells. It’s also coarser than other silk fibres.” This is the reason why the muscle cells grow well on it and can form a three-dimensional tissue structure. “The communication between the cells was intact and they beat synchronously over a period of 20 days, just like real heart muscle,” says Engel.

Despite these promising results, clinical application of the fibre is not currently on the agenda. “Unlike in our study, which we carried out using rat cells, the problem of obtaining sufficient human cardiac cells as starting material has not yet been solved,” says Engel. It is thought that the patient’s own stem cells could be used as starting material to avoid triggering an immune reaction. However, exactly how the conversion of the stem cells into cardiac muscle cells works remains a mystery.

More information: Chinmoy Patra, Sarmistha Talukdar, Tatyana Novoyatleva, Siva R. Velagala, Christian Mühlfeld, Banani Kundu, Subhas C. Kundu, Felix B. Engel
Silk protein fibroin from Antheraea mylitta for cardiac tissue engineering, Biomaterials, Advance Online Publication Januar 10, 2012

Provided by Max-Planck-Gesellschaft (news : web)

Read the original post:
Scientists use silk from the tasar silkworm as a scaffold for heart tissue

Newswise — In the quest to find treatments for certain neurological diseases, BrainStorm is fast distinguishing itself as a leader in the field of regenerative medicine using stem cells through its unique platform called NurOwn. The Company can process human mesenchymal stem cells, which are present in bone marrow and are capable of self-renewal as well as differentiation into many other tissues. What makes BrainStorm technology platform very attractive to Big Pharma partnering is the autologous nature of the bone marrow-derived stem cells. This will in turn drastically reduce the expected translation time to market. The value of a treatment for ALS in the U.S. and EU is estimated to be $4Billion. The potential applications for the NurOwn platform to treat disease is fast becoming a reality. In short, BrainStorm is leveraging a patients own cells to heal itself of disease.

BrainStorm updated stakeholders recently with a review of the trial six months post transplantation. The Phase I/II clinical trial for ALS is being conducted at the prestigious Hadassah Medical Center in Jerusalem by renowned Professor Dimitrios Karussis, M.D., Ph.D. and a distinguished scientific team in its own right from BrainStorm headed by Professor Eldad Melamed. Patients have been transplanted with stem cells derived from their own bone marrow and treated with BrainStorm's NurOwn stem cell technology. The trial will include a total of 24 patients, 12 in an advanced stage of the disease and 12 in an early stage.

The staff at Stem Cell Media and http://www.InvestorStemCell.com has initiated broad investor awareness coverage after Dr. Dimitrios Karussis announced early indications of efficacy last week. Dr. Karussis said, There have been no significant side effects in the initial patients we have treated with BrainStorms NurOwn technology. In addition, even though we are conducting a safety trial, the early clinical follow up of the patients treated with the stem cells shows indications of beneficial clinical effects, such as an improvement in breathing and swallowing ability as well as in muscular power. I am very excited about the safety results, as well as these indications of efficacy, we are seeing. This may represent the biggest hope in this field of degenerative diseases, like ALS.

Sai Rosen, Director of Operations for iCELL, commented, "With all the doom and gloom as of late in the world, we see men and women committed to easing the suffering of millions through regenerative medicine using stem cells. Bravo to BrainStorm tireless efforts to find treatments for unmet medical needs!"

BrainStorms ALS trial is coming to the United States sometime in 2012. After receiving Orphan Drug Designation for its NurOwn cell therapy for ALS in the US, BrainStorm is planning to carry out its Phase II clinical trials in the US. To that end, BrainStorm Cell Therapeutics is currently working with the Northeast ALS consortium to design a phase II trial in the United States and has signed a Memorandum of Understating with the Massachusetts General Hospital and the University of Massachusetts Medical School in anticipation of applying for FDA approval to begin ALS human clinical trials in the United States in the course of 2012. The University of Massachusetts Medical School team will be led by Professor Robert H. Brown, MD, DPHIL., and Chair of the Neurological Department at University of Massachusetts Medical School. Professor Brown is a leading expert in neuromuscular genetics and is world renowned for his expertise in ALS. Professor Merit Cudkowitz will lead the Massachusetts General Hospital team.

About BrainStorm (OTC.BB:BCLI) is a leading developer of stem cell technologies to provide treatments for currently incurable neurodegenerative diseases. The Company is focused on developing NTF cells from the patient's own bone marrow in order to treat, Parkinson, ALS, and Spinal Cord Injury

InvestorStemCell.com is dedicated to bringing investors and stakeholders together in thoughtful discussion to educate and publicize the incredible advancements in the regenerative medicine sector.

DO NOT BASE ANY INVESTMENT DECISION UPON ANY MATERIALS FOUND ON THIS REPORT OR WEBSITE. We are not registered as a securities broker-dealer or an investment adviser either with the U.S. Securities and Exchange Commission (the "SEC") or with any state securities regulatory authority. We are neither licensed nor qualified to provide investment advice.

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BrainStorm Cell Therapeutics (OTCBB:BCLI) Has Potentially Developed A Treatment For ALS

Sangeeta Bhatia, MIT professor of health sciences and technology and electrical engineering and computer science

Researchers at MIT and their colleagues said they have devised a way to produce liver-like cells from stem cells, a key step in studying why people respond differently to Hepatitis C.andnbsp;andnbsp;andnbsp;andnbsp;andnbsp;andnbsp;andnbsp;andnbsp;
andnbsp;andnbsp;andnbsp;andnbsp;andnbsp;
An infectious disease that can cause inflammation and organ failure, Hepatitis C has different effects on different people, but no one is sure why, the researchers said in a press release from MIT. Some people are very susceptible to the infection, while others are resistant.

The researchers said that by studying liver cells from different people in the lab, they may determine how genetic differences produce these varying responses. However, liver cells are hard to get and very difficult to grow in a lab dish because they tend to lose their normal structure and function when removed from the body.

The researchers, from MIT, Rockefeller University and the Medical College of Wisconsin, have come up with a way to produce liver-like cells from induced pluripotent stem cells (iPSCs), which are made from body tissues rather than embryos. Those liver-like cells can then be infected with Hepatitis C and help scientists study the varying responses to the infection.

The scientists claim this is the first time an infection has been made in cells derived from iPSCs. Their new technique is described in the Jan. 30 issue of the Proceedings of the National Academy of Sciences. The development, they said, may also eventually enable personalized medicine, in which doctors could test the effect of different drugs on tissues derived from the patient being treated and then customize therapy for that patient.

The new study is a collaboration between Sangeeta Bhatia, professor of health sciences and technology and electrical engineering and computer science at MIT; Charles Rice, professor of virology at Rockefeller; and Stephen Duncan, professor of human and molecular genetics at the Medical College of Wisconsin.

The iPSCs are derived from normal body cells, often skin cells. By turning on certain genes in those cells, the scientists can revert them to an immature state that is identical to embryonic stem cells, which can turn into any cell type. Once the cells become pluripotent, they can be directed to become liver-like cells by turning on genes that control liver development.

The researchers’ goal is to take cells from patients who have unusual reactions to hepatitis C infection, transform them into liver cells and study their genetics to see why people respond as they do. “Hepatitis C virus causes an unusually robust infection in some people, while others are very good at clearing it. It’s not yet known why those differences exist,” Bhatia said in a statement.

Bhatia is a 2009 Mass High Tech Women to Watch honoree.
andnbsp;

See the rest here:
Stem cells may shed light on hepatitis, MIT researchers find

The multiple successes of the direct conversion method could refute the idea that pluripotency (a term that describes the ability of stem cells to become nearly any cell in the body) is necessary for a cell to transform from one cell type to another. Together, the results raise the possibility that embryonic stem cell research and another technique called "induced pluripotency" could be supplanted by a more direct way of generating specific types of cells for therapy or research.

This new study, which will be published online Jan. 30 in the Proceedings of the National Academy of Sciences, is a substantial advance over the previous paper in that it transforms the skin cells into neural precursor cells, as opposed to neurons. While neural precursor cells can differentiate into neurons, they can also become the two other main cell types in the nervous system: astrocytes and oligodendrocytes. In addition to their greater versatility, the newly derived neural precursor cells offer another advantage over neurons because they can be cultivated to large numbers in the laboratory — a feature critical for their long-term usefulness in transplantation or drug screening.

In the study, the switch from skin to neural precursor cells occurred with high efficiency over a period of about three weeks after the addition of just three transcription factors. (In the previous study, a different combination of three transcription factors was used to generate mature neurons.) The finding implies that it may one day be possible to generate a variety of neural-system cells for transplantation that would perfectly match a human patient.

"We are thrilled about the prospects for potential medical use of these cells," said Marius Wernig, MD, assistant professor of pathology and a member of Stanford's Institute for Stem Cell Biology and Regenerative Medicine. "We've shown the cells can integrate into a mouse brain and produce a missing protein important for the conduction of electrical signal by the neurons. This is important because the mouse model we used mimics that of a human genetic brain disease. However, more work needs to be done to generate similar cells from human skin cells and assess their safety and efficacy."

Wernig is the senior author of the research. Graduate student Ernesto Lujan is the first author.

While much research has been devoted to harnessing the pluripotency of embryonic stem cells, taking those cells from an embryo and then implanting them in a patient could prove difficult because they would not match genetically. An alternative technique involves a concept called induced pluripotency, first described in 2006. In this approach, transcription factors are added to specialized cells like those found in skin to first drive them back along the developmental timeline to an undifferentiated stem-cell-like state. These "iPS cells" are then grown under a variety of conditions to induce them to re-specialize into many different cell types.

Scientists had thought that it was necessary for a cell to first enter an induced pluripotent state or for researchers to start with an embryonic stem cell, which is pluripotent by nature, before it could go on to become a new cell type. However, research from Wernig's laboratory in early 2010 showed that it was possible to directly convert one "adult" cell type to another with the application of specialized transcription factors, a process known as transdifferentiation.

Wernig and his colleagues first converted skin cells from an adult mouse to functional neurons (which they termed induced neuronal, or iN, cells), and then replicated the feat with human cells. In 2011 they showed that they could also directly convert liver cells into iN cells.

"Dr. Wernig's demonstration that fibroblasts can be converted into functional nerve cells opens the door to consider new ways to regenerate damaged neurons using cells surrounding the area of injury," said pediatric cardiologist Deepak Srivastava, MD, who was not involved in these studies. "It also suggests that we may be able to transdifferentiate cells into other cell types." Srivastava is the director of cardiovascular research at the Gladstone Institutes at the University of California-San Francisco. In 2010, Srivastava transdifferentiated mouse heart fibroblasts into beating heart muscle cells.

"Direct conversion has a number of advantages," said Lujan. "It occurs with relatively high efficiency and it generates a fairly homogenous population of cells. In contrast, cells derived from iPS cells must be carefully screened to eliminate any remaining pluripotent cells or cells that can differentiate into different lineages." Pluripotent cells can cause cancers when transplanted into animals or humans.

The lab's previous success converting skin cells into neurons spurred Wernig and Lujan to see if they could also generate the more-versatile neural precursor cells, or NPCs. To do so, they infected embryonic mouse skin cells — a commonly used laboratory cell line — with a virus encoding 11 transcription factors known to be expressed at high levels in NPCs. A little more than three weeks later, they saw that about 10 percent of the cells had begun to look and act like NPCs.

Repeated experiments allowed them to winnow the original panel of 11 transcription factors to just three: Brn2, Sox2 and FoxG1. (In contrast, the conversion of skin cells directly to functional neurons requires the transcription factors Brn2, Ascl1 and Myt1l.) Skin cells expressing these three transcription factors became neural precursor cells that were able to differentiate into not just neurons and astrocytes, but also oligodendrocytes, which make the myelin that insulates nerve fibers and allows them to transmit signals. The scientists dubbed the newly converted population "induced neural precursor cells," or iNPCs.

In addition to confirming that the astrocytes, neurons and oligodendrocytes were expressing the appropriate genes and that they resembled their naturally derived peers in both shape and function when grown in the laboratory, the researchers wanted to know how the iNPCs would react when transplanted into an animal. They injected them into the brains of newborn laboratory mice bred to lack the ability to myelinate neurons. After 10 weeks, Lujan found that the cells had differentiated into oligodendroytes and had begun to coat the animals' neurons with myelin.

"Not only do these cells appear functional in the laboratory, they also seem to be able to integrate appropriately in an in vivo animal model," said Lujan.

The scientists are now working to replicate the work with skin cells from adult mice and humans, but Lujan emphasized that much more research is needed before any human transplantation experiments could be conducted. In the meantime, however, the ability to quickly and efficiently generate neural precursor cells that can be grown in the laboratory to mass quantities and maintained over time will be valuable in disease and drug-targeting studies.

"In addition to direct therapeutic application, these cells may be very useful to study human diseases in a laboratory dish or even following transplantation into a developing rodent brain," said Wernig.

Provided by Stanford University Medical Center (news : web)

See the article here:
Researchers turn skin cells into neural precusors, bypassing stem-cell stage

Public release date: 30-Jan-2012
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Contact: Krista Conger
kristac@stanford.edu
650-725-5371
Stanford University Medical Center

STANFORD, Calif. ? Mouse skin cells can be converted directly into cells that become the three main parts of the nervous system, according to researchers at the Stanford University School of Medicine. The finding is an extension of a previous study by the same group showing that mouse and human skin cells can be directly converted into functional neurons.

The multiple successes of the direct conversion method could refute the idea that pluripotency (a term that describes the ability of stem cells to become nearly any cell in the body) is necessary for a cell to transform from one cell type to another. Together, the results raise the possibility that embryonic stem cell research and another technique called "induced pluripotency" could be supplanted by a more direct way of generating specific types of cells for therapy or research.

This new study, which will be published online Jan. 30 in the Proceedings of the National Academy of Sciences, is a substantial advance over the previous paper in that it transforms the skin cells into neural precursor cells, as opposed to neurons. While neural precursor cells can differentiate into neurons, they can also become the two other main cell types in the nervous system: astrocytes and oligodendrocytes. In addition to their greater versatility, the newly derived neural precursor cells offer another advantage over neurons because they can be cultivated to large numbers in the laboratory ? a feature critical for their long-term usefulness in transplantation or drug screening.

In the study, the switch from skin to neural precursor cells occurred with high efficiency over a period of about three weeks after the addition of just three transcription factors. (In the previous study, a different combination of three transcription factors was used to generate mature neurons.) The finding implies that it may one day be possible to generate a variety of neural-system cells for transplantation that would perfectly match a human patient.

"We are thrilled about the prospects for potential medical use of these cells," said Marius Wernig, MD, assistant professor of pathology and a member of Stanford's Institute for Stem Cell Biology and Regenerative Medicine. "We've shown the cells can integrate into a mouse brain and produce a missing protein important for the conduction of electrical signal by the neurons. This is important because the mouse model we used mimics that of a human genetic brain disease. However, more work needs to be done to generate similar cells from human skin cells and assess their safety and efficacy."

Wernig is the senior author of the research. Graduate student Ernesto Lujan is the first author.

While much research has been devoted to harnessing the pluripotency of embryonic stem cells, taking those cells from an embryo and then implanting them in a patient could prove difficult because they would not match genetically. An alternative technique involves a concept called induced pluripotency, first described in 2006. In this approach, transcription factors are added to specialized cells like those found in skin to first drive them back along the developmental timeline to an undifferentiated stem-cell-like state. These "iPS cells" are then grown under a variety of conditions to induce them to re-specialize into many different cell types.

Scientists had thought that it was necessary for a cell to first enter an induced pluripotent state or for researchers to start with an embryonic stem cell, which is pluripotent by nature, before it could go on to become a new cell type. However, research from Wernig's laboratory in early 2010 showed that it was possible to directly convert one "adult" cell type to another with the application of specialized transcription factors, a process known as transdifferentiation.

Wernig and his colleagues first converted skin cells from an adult mouse to functional neurons (which they termed induced neuronal, or iN, cells), and then replicated the feat with human cells. In 2011 they showed that they could also directly convert liver cells into iN cells.

"Dr. Wernig's demonstration that fibroblasts can be converted into functional nerve cells opens the door to consider new ways to regenerate damaged neurons using cells surrounding the area of injury," said pediatric cardiologist Deepak Srivastava, MD, who was not involved in these studies. "It also suggests that we may be able to transdifferentiate cells into other cell types." Srivastava is the director of cardiovascular research at the Gladstone Institutes at the University of California-San Francisco. In 2010, Srivastava transdifferentiated mouse heart fibroblasts into beating heart muscle cells.

"Direct conversion has a number of advantages," said Lujan. "It occurs with relatively high efficiency and it generates a fairly homogenous population of cells. In contrast, cells derived from iPS cells must be carefully screened to eliminate any remaining pluripotent cells or cells that can differentiate into different lineages." Pluripotent cells can cause cancers when transplanted into animals or humans.

The lab's previous success converting skin cells into neurons spurred Wernig and Lujan to see if they could also generate the more-versatile neural precursor cells, or NPCs. To do so, they infected embryonic mouse skin cells ? a commonly used laboratory cell line ? with a virus encoding 11 transcription factors known to be expressed at high levels in NPCs. A little more than three weeks later, they saw that about 10 percent of the cells had begun to look and act like NPCs.

Repeated experiments allowed them to winnow the original panel of 11 transcription factors to just three: Brn2, Sox2 and FoxG1. (In contrast, the conversion of skin cells directly to functional neurons requires the transcription factors Brn2, Ascl1 and Myt1l.) Skin cells expressing these three transcription factors became neural precursor cells that were able to differentiate into not just neurons and astrocytes, but also oligodendrocytes, which make the myelin that insulates nerve fibers and allows them to transmit signals. The scientists dubbed the newly converted population "induced neural precursor cells," or iNPCs.

In addition to confirming that the astrocytes, neurons and oligodendrocytes were expressing the appropriate genes and that they resembled their naturally derived peers in both shape and function when grown in the laboratory, the researchers wanted to know how the iNPCs would react when transplanted into an animal. They injected them into the brains of newborn laboratory mice bred to lack the ability to myelinate neurons. After 10 weeks, Lujan found that the cells had differentiated into oligodendroytes and had begun to coat the animals' neurons with myelin.

"Not only do these cells appear functional in the laboratory, they also seem to be able to integrate appropriately in an in vivo animal model," said Lujan.

The scientists are now working to replicate the work with skin cells from adult mice and humans, but Lujan emphasized that much more research is needed before any human transplantation experiments could be conducted. In the meantime, however, the ability to quickly and efficiently generate neural precursor cells that can be grown in the laboratory to mass quantities and maintained over time will be valuable in disease and drug-targeting studies.

"In addition to direct therapeutic application, these cells may be very useful to study human diseases in a laboratory dish or even following transplantation into a developing rodent brain," said Wernig.

###

In addition to Wernig and Lujan, other Stanford researchers involved in the study include postdoctoral scholars Soham Chanda, PhD, and Henrik Ahlenius, PhD; and professor of molecular and cellular physiology Thomas Sudhof, MD.

The research was supported by the California Institute for Regenerative Medicine, the New York Stem Cell Foundation, the Ellison Medical Foundation, the Stinehart-Reed Foundation and the National Institutes of Health.

The Stanford University School of Medicine consistently ranks among the nation's top medical schools, integrating research, medical education, patient care and community service. For more news about the school, please visit http://mednews.stanford.edu. The medical school is part of Stanford Medicine, which includes Stanford Hospital andamp; Clinics and Lucile Packard Children's Hospital. For information about all three, please visit http://stanfordmedicine.org/about/news.html.

PRINT MEDIA CONTACT: Krista Conger at (650) 725-5371 (kristac@stanford.edu)
BROADCAST MEDIA CONTACT: M.A. Malone at (650) 723-6912 (mamalone@stanford.edu)

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Stanford scientists turn skin cells into neural precusors, bypassing stem-cell stage

27-01-2012 21:30 TORONTO - Doctors have performed Ontario's first cardiac stem cell transplant using cells from the patient's own bone marrow.

See the original post here:
Cardiac Stem Cell Transplant - Video

12-12-2009 13:45 What are stem cells? - An short educational film by the Irish Stem Cell Foundation Stem cells are master cells of the body — want to learn more? Visit http://www.irishstemcellfoundation.org ISCF is an independent not-for-profit organisation whose primary objective is to educate about stem cells, their basic biology and the research and therapies using them. The Foundation will initially focus on education outreach programs, hoping to address the growing problem of bogus stem cell scams being offered to Irish patients over the internet. The Foundation will also assist the development of Irish policy and legislature in this area of medicine and science, ensuring Ireland is informed. The Foundation consists of a broad range of people including Irish doctors, scientists, patient advocates, educators, bioethicists and other associated parties seeking to expand and develop the Irish public's understanding of stem cells.

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What are stem cells? How can they be used for medical benefit? - Video

04-02-2010 18:43 (October 6, 2009) Dr. Jill Helms, Associate Professor of Surgery at the Stanford School of Medicine, discusses developments in stem cell research and the future of regenerative medicine. Stanford Mini Med School is a series arranged and directed by Stanford's School of Medicine, and presented by the Stanford Continuing Studies program. Featuring more than thirty distinguished, faculty, scientists and physicians from Stanford's medical school, the series offers students a dynamic introduction to the world of human biology, health and disease, and the groundbreaking changes taking place in medical research and health care. Stanford University http://www.stanford.edu Stanford Continuing Studies http Stanford University Channel on YouTube: http://www.youtube.com

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Stem Cells

Celebrated adult stem cell researcher Shinya Yamanaka will
deliver a lecture, ‘New era of medicine with iPS cells', here
on Monday as part of a three-city lecture series. Prof.
Yamanaka's scientific breakthrough was the creation of
embryonic-like stem cells from adult skin cells.

The lecture by this Japanese physician is the third edition of
The Cell Press-TNQ India Distinguished Lectureship Series. He
will also deliver it in Chennai on February 1 and New Delhi on
February 3. The lecture series is co-sponsored by Cell Press
and TNQ Books and Journals.

Quantum leap

The stated goal of Prof. Yamanaka's laboratory has been to
generate pluripotent stem cells from human somatic cells. The
ability to re-programme adult cells back into an earlier,
undifferentiated state has helped to reshape the ethical debate
over stem cell research by providing an approach to obtain
pluripotent stem cells that need not be harvested from an
embryo.

Prof. Yamanaka, who was awarded the Albert Lasker Prize in 2009
and the Wolf Prize in 2011, is the director of the Centre for
iPS Cell Research and Application and professor at the
Institute for Frontier Medical Sciences at Kyoto University. He
is also a senior investigator at the UCSF-affiliated J. David
Gladstone Institutes and a professor of Anatomy at the
University of California in San Francisco.

Previous lectures

The inaugural speaker of the lecture series was American
biologist David Baltimore, who won the 1975 Nobel. The second
speaker was Australia-born American biological researcher
Elizabeth Blackburn, awarded the 2009 Nobel.

The lecture in Bangalore will commence at 4.30 p.m. at J.N.
Tata Auditorium, National Science Seminar Complex, Indian
Institute of Science, C.V. Raman Road.

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Lecture by stem cell researcher tomorrow

Colon Cancer Screening Needed Less Than Every 5 Years - Colon cancer is easily treated if found early enough, but it appears current recommendations for scope screening every 5 years is unnecessarily frequent.

Sigmoidoscopy screening for colon cancer is recommended every five years for people over 50, however a new study found that screening that often may be unnecessary.

Sigmoidoscopy screening allows a doctor to identify polyps, or small growths, in the colon that could turn into cancer. Other colon cancer screening methods include fecal occult blood testing, which identifies blood in the stool, and colonoscopy, which examines the entire colon (sigmoidoscopy only examines the lower part).

While the American Cancer Society recommends that adults over 50 receive sigmoidoscopy screening every five years and a fecal occult blood test annually, some say this may be overly aggressive.

According to experts, it could take up to 15 years for polyps to develop into cancer and it may be that a one-time sigmoidoscopy screening is enough for those at average-risk. Read more...

AyurGold for Healthy Blood

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Via Scoop.it – inPharmatics

Oracle Exadata gets into Personlized Medicine & Bioinformatics space dressed as Oracle® Health Sciences Omics Data Bank.    Oracle Health Sciences today announced availability of Oracle® Health Sciences Omics Data Bank, a molecular data model, which is part of Oracle Health Sciences Translational Research Center.   The new data model provides integration and analysis of cross-platform omics data to support translational research. Oracle Health Sciences Translational Research Center runs on Oracle Exadata Database Machine, delivering the extreme performance required for querying vast data sets.
Via http://www.oracle.com

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The magazine GEN this week produced two relatively lengthy articles dealing with the current state of affairs and the future of the $3 billion California stem cell agency.

Much of the material is familiar to readers of the California Stem Cell Report, but GEN, which says it reaches "221,035 biotech and life science professionals, also produced an online survey that asked its readers: "How helpful has CIRM been in advancing stem cell science?"

At the time of this writing, the results showed that 40.9 of respondents said CIRM was "very helpful."  An identical percentage said "not very" or were undecided. The survey showed 18.2 percent as ranking the agency "somewhat" helpful. The number of respondents was not disclosed.

The two articles (see here and here)by Alex Philippidis also discussed the possibility of a bond issue in a "few years," before CIRM runs out of cash in 2017. Philippidis wrote,

"By then CIRM hopes to have won what ICOC (the CIRM governing board) chairman Jonathan Thomas, Ph.D., has called the 'communications war' the agency is fighting with California newspapers and the CIRM-focused blog California Stem Cell Report. Both have criticized the agency over a host of governance and pay issues."

For the record, the California Stem Cell Report has not criticized the agency in connection with the level of its executive pay. We have pointed out that many California voters have a highly negative and visceral reaction to high public salaries, which is a matter that CIRM must deal with in connection with retention of public confidence. We have also noted that the salaries represent a tiny, tiny fraction of CIRM spending.

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The blue-ribbon Institute of Medicine panel examining the performance of the $3 billion California stem cell agency has quietly concluded its first public hearing in California without so much as a smidgen of daily coverage in the mainstream media.

Instead, the big state news in California yesterday was a lawsuit filed by lawmakers against the state's top fiscal officer to prevent him from cutting their pay again when they fail to pass a balanced budget.

It would have been extremely unlikely, however, to have seen any daily coverage of the IOM session. The mainstream media generally ignores the affairs of the California stem cell agency.

Other than what has appeared on the California Stem Cell Report, the most comprehensive look at the $700,000, IOM examination of CIRM was provided on Tuesday by Marcy Darnovsky of the Center for Genetics and Society, which has followed CIRM, and the ballot measure that created it, since 2004.

Darnovsky brought her readers on the Biopolitical Times up to speed on CIRM matters. She noted that CIRM will need more cash in a few years when its bond funding runs out. She concluded,

"But ballot measure or no ballot measure, CIRM will continue to disperse the public money it controls - another billion and a half dollars. This is a public agency spending increasingly scarce public resources. It is funding a field of research in which we place great hopes for medical and scientific advances. These factors make it all the more crucial that CIRM follow the basics of good governance and public accountability, and eschew the hyperbole and exaggerated promises that have tainted stem cell research for so long."

The California Stem Cell Report emailed a 1,370-word statement to the panel. The study director of the IOM panel said the statement would be placed in the panel's record.

The document provided perspective on the formation of CIRM, the political context in which it operates and discussed some of the potential pitfalls of CIRM's necessary but delicate courting of industry. Suggestions were offered for changes to ease potential conflicts of interest and to open to the public the statements of the economic interests of the grant reviewers who make the de facto decisions on CIRM's funding.

Here is the full statement from the California Stem Cell Report.
CSCR Statement to IOM-CIRM Performance Inquiry

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A promising, positive story on stem cell research in California popped up in the news this week, involving improvements in vision as the result of the only hESC clinical trial in the nation.

The story came after Jonathan Thomas, chairman of the $3 billion California stem cell agency, said in the San Francisco Business Times that what he likes least about his job is that "the coverage in the press chooses to focus on items besides the extraordinary work that our scientists are doing."

The good news about the eye research appeared in the New York Times, Los Angeles Times and across the nation. However, it did not involve work at the stem cell agency, probably for reasons that likely have to do in good part with CIRM. The research involves a firm headquartered in Santa Monica, Ca., Advanced Cell Technology, that moved its base to the Golden State in hopes of securing CIRM funding. ACT has applied more than once for CIRM cash but has never received a grant. And it is one of the rare companies that has complained publicly to the CIRM governing board about a conflict of interest on the part of a CIRM reviewer. In ACT's case, its complaints received a public brushoff at a CIRM board meeting in 2008.

ACT's results in its clinical trial are quite tentative. They involve only two persons. One of the UCLA scientists involved said part of the results could have been the result of a placebo effect. Nonetheless, the reports carried the kind of story line that CIRM yearns for. Indeed, Thomas stressed the need for positive news when he told CIRM directors last June that the agency is in a "communications war" that is tied to its ultimate fate. (The agency runs out of cash in 2017.)

The New York Times' Andy Pollock wrote,

"Both patients, who were legally blind, said in interviews that they had gains in eyesight that were meaningful for them. One said she could see colors better and was able to thread a needle and sew on a button for the first time in years. The other said she was able to navigate a shopping mall by herself."

On its research blog, CIRM described the ACT results as a "milestone." CIRM's Amy Adams wrote,

"It’s the first published paper showing that—at least in this small number of patients for the first few months—the cells are safe."

She quoted Hank Greely of Stanford as saying that the news from ACT is "at least, a little exciting – and in a field that saw its first approved clinical trial stopped two months ago, even a little exciting news is very welcome."

Greely's reference, of course, was to Geron's sudden abandonment in November of its hESC trial, only three months after CIRM gave the firm a $25 million loan. It was widely believed that ACT was one of the initial applicants in the round that provided funding for Geron, although CIRM does not release the names of non-funded applicants.

Last week, CIRM directors spent a fair amount of time discussing the agency's future. The talk was of priorities, hard choices and generating results that would resonate with the people of California.

This week's news from a company that was not funded by CIRM will give them more to ponder.

Source:
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