Stem Cell Clinic

Duke Team Turns Scar Tissue into Heart Muscle Without Using Stem Cells

By Stem Cell Medical Center

By Duke Medicine News and Communications

Scientists at Duke University Medical Center have shown the ability to turn scar tissue that forms after a heart attack into heart muscle cells using a new process that eliminates the need for stem cell transplant.

The study, published online April 26 in the journal Circulation Research, used molecules called microRNAs to trigger the cardiac tissue conversion in a lab dish and, for the first time, in a living mouse, demonstrating the potential of a simpler process for tissue regeneration.

If additional studies confirm the approach in human cells, it could lead to a new way for treating many of the 23 million people worldwide who suffer heart failure, which is often caused by scar tissue that develops after a heart attack. The approach could also have benefit beyond heart disease.

"This is a significant finding with many therapeutic implications," said Victor J. Dzau, MD, a senior author on the study who is James B. Duke professor of medicine and chancellor of health affairs at Duke University. "If you can do this in the heart, you can do it in the brain, the kidneys, and other tissues. This is a whole new way of regenerating tissue."

To initiate the regeneration, Dzau's team at Duke used microRNAs, which are molecules that serve as master regulators controlling the activity of multiple genes. Tailored in a specific combination, the microRNAs were delivered into scar tissue cells called fibroblasts, which develop after a heart attack and impair the organ's ability to pump blood.

Once deployed, the microRNAs reprogrammed fibroblasts to become cells resembling the cardiomyocytes that make up heart muscle. The Duke team not only proved this concept in the laboratory, but also demonstrated that the cell conversion could occur inside the body of a mouse -- a major requirement for regenerative medicine to become a potential therapy.

"This is one of the exciting things about our study," said Maria Mirotsou, PhD, assistant professor of cardiology at Duke and a senior author of the study. "We were able to achieve this tissue conversion in the heart with these microRNAs, which may be more practical for direct delivery into cells and allow for possible development of therapies without using genetic methods or transplantation of stem cells."

The researchers said using microRNA for tissue regeneration has several potential advantages over genetic methods or transplantation of stem cells, which have been difficult to manage inside the body. Notably, the microRNA process eliminates technical problems such as genetic alterations, while also avoiding the ethical dilemmas posed by stem cells.

"It's an exciting stage for reprogramming science," said Tilanthi M. Jayawardena, PhD, first author of the study. "It's a very young field, and we're all learning what it means to switch a cell's fate. We believe we've uncovered a way for it to be done, and that it has a lot of potential."

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Duke Team Turns Scar Tissue into Heart Muscle Without Using Stem Cells

Improved adult-derived human stem cells have fewer genetic changes than expected

By Uncategorized

A team of researchers from Johns Hopkins University and the National Human Genome Research Institute has evaluated the whole genomic sequence of stem cells derived from human bone marrow cellsso-called induced pluripotent stem (iPS) cellsand found that relatively few genetic changes occur during stem cell conversion by an improved method. The findings, reported in the March issue of Cell Stem Cell, the official journal of the International Society for Stem Cell Research (ISSCR), will be presented at the annual ISSCR meeting in June.

Our results show that human iPS cells accrue genetic changes at about the same rate as any replicating cells, which we dont feel is a cause for concern, says Linzhao Cheng, Ph.D., a professor of medicine and oncology, and a member of the Johns Hopkins Institute for Cell Engineering.

Each time a cell divides, it has the chance to make errors and incorporate new genetic changes in its DNA, Cheng explains. Some genetic changes can be harmless, but others can lead to changes in cell behavior that may lead to disease and, in the worst case, to cancer.

In the new study, the researchers showed that iPS cells derived from adult bone marrow cells contain random genetic changes that do not specifically predispose the cells to form cancer.

Little research was done previously to determine the number of DNA changes in stem cells, but because whole genome sequencing is getting faster and cheaper, we can now more easily assess the genetic stability of these cells derived by various methods and from different tissues, Cheng says. Last year, a study published in Nature suggested higher than expected cancer gene mutation rates in iPS cells created from skin samples, which, according to Cheng, raised great concerns to many in the field pertaining to usefulness and safety of the cells. This study analyzed both viral and the improved, nonviral methods to turn on stem cell genes making the iPS cells

To more thoroughly evaluate the number of genetic changes in iPS cells created by the improved, non-viral method, Chengs team first converted human blood-forming cells or their support cells, so-called marrow stromal cells (MSCs) in adult bone marrow into iPS cells by turning on specific genes and giving them special nutrients. The researchers isolated DNA from--and sequenced--the genome of each type of iPS cells, in comparison with the original cells from which the iPS cells were derived.

Cheng says they then counted the number of small DNA differences in each cell line compared to the original bone marrow cells. A range of 1,000 to 1,800 changes in the nucleic acid letters A, C, T and G occurred across each genome, but only a few changes were found in actual genes--DNA sequences that act as blueprints for our bodys proteins. Such genes make up two percent of the genome.

The blood-derived iPS cells contained six and the MSC-derived iPS cells contained 12 DNA letter changes in genes, which led the researchers to conclude that DNA changes in iPS cells are far more likely to occur in the spaces between genes, not in the genes themselves.

Next, the investigators examined the severity of the DNA changes--how likely each one would disrupt the function of each gene. They found that about half of the DNA changes were silent, meaning these altered blueprints wouldnt change the nucleic acid building code for its corresponding protein or change its function.

For the remaining DNA changes, the researchers guessed these would, in fact, disrupt the function of the gene by either making the gene inactive or changing the way the gene works. Since each cell contains two copies of each gene, in many cases the other, normal copy of the gene could compensate for a disrupted gene, Cheng and the team reasoned.

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Improved adult-derived human stem cells have fewer genetic changes than expected

Bio-Matrix Scientific Group, Inc. Announces Newly Formed Stem Cell Subsidiary — Regen BioPharma Inc., Secures $20,000 …

By Uncategorized

SAN DIEGO, CA--(Marketwire -04/30/12)- Bio-Matrix Scientific Group, Inc. (BMSN.PK - News) (BMSN.PK - News) announced today it has formed a new subsidiary, Regen BioPharma, Inc. Regen BioPharma has developed a vertically-integrated structure for acquiring patents, performing accelerating preclinical and clinical development, and licensing or selling technology developed to large pharma companies in the area of stem cells.

To date, Regen BioPharma has reviewed more than 20,000 US issued patents covering stem cell related subject matter, created a shortlist of 30 promising technologies for rapid commercialization, and currently is in negotiations to license several of these. Once the technology is secured, the Company anticipates partnering with industry leading scientists, physicians, and service providers to complete the Investigational New Drug (IND)-enabling work and begin clinical trials.

"In biotechnology in general, and specifically in the area of regenerative medicine, the biggest value creation occurs for shareholders when a company files an IND and obtains human data that provides proof of safety and efficacy," said David R. Koos, Chairman and Chief Executive Officer of Bio-Matrix. "We are assembling the team and capabilities to in-license and evaluate technologies rapidly, then to develop the regulatory package and initiate clinical trials. Our business model and partnerships will allow us to take cell therapy products from discovery to FDA Phase II clinical trials in as short a period as 18 - 24 months."

The Company also announced that it has secured $20,000,000 in financing from Southridge Partners II, LP of Ridgefield, Connecticut.

This agreement grants the Company the option to sell and obligates Southridge to purchase up to $20,000,000 of common stock over its term. The per share price will be determined based on market prices in accordance with an agreed upon formula and the Company is not obligated to draw on the facility.

The Company has agreed to file a registration statement with the U.S. Securities and Exchange Commission to register the resale by Southridge of any shares issued to it under the agreement. Subject to the effectiveness of the registration statement and the satisfaction of other customary conditions, the Company may draw on the facility from time to time, as and when it determines appropriate, in accordance with the timing and volume provisions set forth in the agreement.

A spokesperson for the Company noted that Its investment banker, Christopher Schufeldt of Capital Path Securities was instrumental in arranging the funding agreement with Southridge Partners II LP.

About Bio-Matrix Scientific Group, Inc.:

Bio-Matrix Scientific Group, Inc. (BMSN.PK - News) (BMSN.PK - News) is a biotechnology company focused on the development of regenerative medicine therapies and tools. The Company is specifically focused on human therapies that address unmet medical needs. Specifically, Bio-Matrix Scientific Group Inc. is looking to increase the quality of life through therapies involving stem cell treatments. These treatments are focused in areas relating to lung, heart, circulatory system and other internal organs.

Through Its wholly owned subsidiary, Regen BioPharma, it is the Company's goal to develop translational medicine platforms for the rapid commercialization of stem cell therapies. The Company is looking to use these translational medicine platforms to advance intellectual property licensed from entities, institutions and universities that show promise towards fulfilling the Company's goal of increased quality of life.

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Bio-Matrix Scientific Group, Inc. Announces Newly Formed Stem Cell Subsidiary -- Regen BioPharma Inc., Secures $20,000 ...

New Fund Established to Stimulate Regenerative Medicine Industry

By Uncategorized

MONTREAL, QUEBEC--(Marketwire -04/30/12)- With a shared goal of supporting development projects that will boost innovation in the growing field of stem cells and biomaterials-based products, Pfizer Canada and the Centre for Commercialization of Regenerative Medicine (CCRM) have established the Pfizer-CCRM Innovation Fund to accelerate regenerative medicine (RM) technologies for drug screening and therapeutic applications. The announcement is being made at the first annual Till & McCulloch Meetings (April 30-May 2), Canada's premier stem cell meeting, jointly hosted by the Stem Cell Network and CCRM.

"CCRM was created on the premise that it would work with academia and industry on projects that will hopefully move RM technologies and innovations from the bench to the bedside," says Michael May, CEO of CCRM. "Canada is already a leader in this field and additional funding to advance novel research through early product development will only make us stronger. We're very pleased to be partnering with Pfizer Canada and appreciate their confidence in joining with us."

"Pfizer Canada is pleased to contribute to this new fund which will support important research here in Canada," explains Dr. Bernard Prigent, Vice-President and Medical Director, Pfizer Canada. "With the novel resources offered through CCRM's development capabilities, we hope to help advance the RM field in this country."

Pfizer Canada has contributed a total of $500,000 to the Pfizer-CCRM Innovation Fund and CCRM will contribute matching dollars to any approved projects undertaken in the duration of this fund.

About Centre for Commercialization of Regenerative Medicine (CCRM)

CCRM, a Canadian not-for-profit organization funded by the Government of Canada's Networks of Centres of Excellence program and six institutional partners, supports the development of technologies that accelerate the commercialization of stem cell- and biomaterials-based technologies and therapies. A network of academics, industry and entrepreneurs, CCRM translates scientific discoveries into marketable products for patients. CCRM launched in Toronto's Discovery District on June 14, 2011.

About Pfizer Canada

Pfizer Canada Inc. is the Canadian operation of Pfizer Inc., the world's leading biopharmaceutical company. Pfizer discovers, develops, manufactures and markets prescription medicines for humans and animals. Pfizer Inc. invests more than US$7 billion annually in R&D to discover and develop innovative life-saving and life-enhancing medicines in a wide range of therapeutic areas. Our diversified health care portfolio includes human and animal biologic and small molecule medicines and vaccines, as well as nutritional products and many of the world's best-known consumer products. For more information, visit http://www.pfizer.ca

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New Fund Established to Stimulate Regenerative Medicine Industry

American CryoStem Announces ACS Laboratories Adipose Tissue and Adult Stem Cell Testing Services

By Uncategorized

RED BANK, NJ--(Marketwire -04/30/12)- American CryoStem Corporation (CRYO.PK - News) announced the launch of its new adipose tissue and adult stem cell testing services to assist physicians involved in tissue engraftment, regenerative medicine procedures and cellular therapies utilizing adult adipose derived stem cells. The new testing services provide physicians an affordable method for self assessment of their procedures and methods to better understand the relationship between tissue quality and engraftment success.

American CryoStem recognizes the need for independent testing services as reinforced by the increasing focus and scrutiny of physician office based tissue laboratories by the US Food and Drug Administration (FDA). The menu of testing services includes full 14 day sterility testing, viability testing, growth assay and additional tests for each selected service. The tests can be ordered individually or in multiples over time and are designed to allow physicians to self evaluate their current methods and performance, or to assess new methods or devices designed to improve procedure and tissue quality. Long term and customized programs are available upon request. Physicians enrolled as a provider of the Company's stem cell storage services can obtain discounts for individual and multi test programs.

"We are very excited about rolling these new services out to our existing providers and all participants in the tissue engraftment, regenerative medicine and cellular therapy markets. We believe that this is the first such program offered commercially and meets a critical need for the advancement of the regenerative and cellular therapy markets," said Anthony Dudzinski, the Company's COO. "Now there is a way for physicians to assess their own performance without the need to overcome the significant costs of purchasing and maintaining their own testing facilities."

The new testing services are offered by ACS Laboratories reflects the Company's increasing branding and commercialization of products and services developed around its proprietary clinical tissue processing and storage methodologies. ACS Laboratory incorporates its proprietary cGMP/cGTP aseptic methods and FDA guidance's into these services to ensure the highest quality and most useful information for physicians.

About American CryoStem: American CryoStem Corporation (CRYO.PK - News) markets clinical processing services and patented products for Adipose (fat) Tissue and Adipose Derived Adult Stem Cells. The Company's clinical processing, patented cell culture media products and cellular preservation platform supports the science and regenerative medicine applications being developed globally. The Company provides the highest quality, clinically processed cells assuring their purity, viability and growth capabilities, while at the same time developing cutting edge applications, therapies and patented laboratory products and services for consumer and commercial applications.

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American CryoStem Announces ACS Laboratories Adipose Tissue and Adult Stem Cell Testing Services

Stem cell therapy for WCMS student has remarkable results

By Stem Cell Treatment

When Tyler was born, the umbilical cord was wrapped around his neck, causing a lack of oxygen to his brain that led to Tyler suffering a stroke during delivery. The stroke caused damage to the back of Tylers brain. Tyler was diagnosed with cerebral palsy and his mother, Lisa Biermann, was told to expect the worst: a child who would never walk, talk, or have any chance at a normal life.

Lisa refused to give up hope. She tried everything she could to help Tyler. Tyler could not walk because his feet would not sit flat on the floor. She tried botox injections every three months, braces, casts and even ankle cord surgery. Nothing worked.

Lisa said Tyler could not communicate with her at all. She never knew when he was in pain because he was unable to tell her.

Tyler was considered to be blind, with a prescription that was over nine units nearsighted, and his eyes jumped around. Even with glasses, he could not focus his vision, and doctors did not believe he could see, or ever would see.

Until he was 8 years old, Lisa would carry Tyler from his classes at Woodland Park Elementary.

When Tyler was 8, he had a seizure. Dr. David Steenblock, who is based in California, heard about Tyler and offered to help him with umbilical cord stem cell therapy. Lisa said she thought hard about it, and because she had tried everything else and nothing had worked, she decided to try the stem cell therapy, which Dr. Steenblock told her had no side effects.

In December 2007, Lisa, Dr. Steenblock and his team took Tyler for the treatment, which had to be done in Tijuana, Mexico, because stem cells injection is currently not legal in the United States. Three months later, they went for a second injection.

The stem cells were given to Tyler intravenously for a period of approximately 45 minutes.

Lisa said within weeks, she saw monumental changes in Tyler. All the milestones he never reached as a baby, he began reaching.

Within three months Tyler could put his feet flat on the floor and could walk independently. At six months post-treatment, he no longer needed the painful braces that gave him bunions.

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Stem cell therapy for WCMS student has remarkable results

How stem cell therapy can keep the immune system under control

By Stem Cell Treatment

A new study, appearing in Cell Stem Cell and led by researchers at the University of Southern California, outlines the specifics of how autoimmune disorders can be controlled by infusions of mesenchymal stem cells.

Mesenchymal stem cells (MSC) are highly versatile stem cells that originate from the mesoderm, or middle layer of tissue, in a developing embryo. MSC can be isolated from many different kinds of human tissue, including bone marrow and the umbilical cord.

Principal investigator Songtao Shi, professor at the Ostrow School of Dentistry of USC Center for Craniofacial Molecular Biology, said that recent studies have shown the benefits of administering MSC to patients with immune-related disorders such as graft versus host disease, systemic lupus erythematosus, rheumatoid arthritis, and more.

These studies showed that infusions of MSC appeared to quell the production and function of overactive immune cells, including T- and B-lymphocytes. However, the specific mechanism behind how MSC get the immune cells under control hasn't been fully understood.

"Mesenchymal-Stem-Cell-Induced Immunoregulation Involves FAS-Ligand-/FAS-Mediated T Cell Apoptosis" shines light on how infused MSCs target and defeat overactive immune cells.

Examining the effects of MSC infusion in mice with systemic sclerosis (SS)-like immune disorders, Shi and his colleagues discovered that a specific cellular mechanism known as the FAS/FAS-ligand pathway was the key to the remarkable immune system benefits.

Specifically, in mice with SS-like disorders, infusions of MSC caused T-lymphocyte death with FASL/FAS signaling and lessened symptoms of the immune disorder. However, MSC deficient in FAS-ligand failed to treat immune disorders in SS-afflicted mice.

With the hopeful results of the animal model study in mind, Shi's colleagues in China performed a pilot study with patients suffering from systemic sclerosis. Infusions of MSCs provided similar clinical benefits to patients, and experimental analysis revealed that the FASL/FAS pathway was also at work in humans with SS.

The identification of the cellular workings responsible for the stem cell treatments' success may eventually help doctors find optimal cell-based treatment for some immune diseases, Shi said.

Basic research portions of this study were supported by the National Institute of Dental and Craniofacial Research and the California Institute for Regenerative Medicine. Clinical studies were supported by a grant from the China Major International (Regional) Joint Research Project.

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How stem cell therapy can keep the immune system under control

VistaGen Secures Key U.S. Patent Covering Stem Cell Technology Methods Used To Test Drug Candidates For Liver Toxicity

By Stem Cell Treatment

South San Francisco, CA (Marketwire) - VistaGen Therapeutics, Inc. (OTCBB: VSTA) (OTCQB: VSTA), a biotechnology company applying stem cell technology for drug rescue, has secured a new United States patent covering the company's proprietary methods used to measure and type the toxic effects produced by drug compounds in liver stem cells.

Test methods included in this new patent, (U.S. Patent 11/445,733), titled "Toxicity Typing Using Liver Stem Cells," cover all mammalian liver stem cells -- rat and mouse cells, for example, in addition to human cells. Liver stem cells used in drug testing can be derived from in vivo tissue or produced from embryonic stem cells (ES) or induced pluripotent stem cells (iPS).

H. Ralph Snodgrass, Ph.D., VistaGen's President and Chief Scientific Officer, said, "This patent covers the monitoring of changes in gene expression as an assay for predicting drug toxicities. It is well known that drugs activate and suppress specific genes, and that the changes in gene expression reflect the mechanism of drug toxicities. The specific sets of genes that are affected become a profile of that drug."

VistaGen's new patent also covers techniques used to develop a database of gene expression profiles of drugs that have the same type of liver toxicity. Using sophisticated "pattern matching" database tools, drug developers can analyze these related profiles to determine "gene expression signatures" that are common and predictive of drugs that produce specific types of toxicity.

"Without this database capability, a drug's single gene expression profile could not be interpreted," Dr. Snodgrass added. "The ability to use liver stem cells to differentiate drug-dependent gene expression profiles, and to compare those profiles of drugs known to induce toxic liver effects, provides a powerful tool for predicting liver toxicity of new drug candidates, including drug rescue variants."

Shawn K. Singh, VistaGen's Chief Executive Officer, stated, "Strong and enforceable intellectual property rights are critical components of our plan to optimize the commercial potential of our Human Clinical Trials in a Test Tube platform. This new liver toxicity typing patent further solidifies our growing IP portfolio, and supports the continuing development of LiverSafe 3D, our human liver cell-based bioassay system, which complements our CardioSafe 3D human heart cell-based bioassay system for heart toxicity."

About VistaGen Therapeutics VistaGen is a biotechnology company applying human pluripotent stem cell technology for drug rescue and cell therapy. VistaGen's drug rescue activities combine its human pluripotent stem cell technology platform, Human Clinical Trials in a Test Tube, with modern medicinal chemistry to generate new chemical variants (Drug Rescue Variants) of once-promising small-molecule drug candidates. These are drug candidates discontinued due to heart toxicity after substantial development by pharmaceutical companies, the U.S. National Institutes of Health (NIH) or university laboratories. VistaGen uses its pluripotent stem cell technology to generate early indications, or predictions, of how humans will ultimately respond to new drug candidates before they are ever tested in humans, bringing human biology to the front end of the drug development process.

Additionally, VistaGen's small molecule drug candidate, AV-101, is in Phase 1b development for treatment of neuropathic pain. Neuropathic pain, a serious and chronic condition causing pain after an injury or disease of the peripheral or central nervous system, affects approximately 1.8 million people in the U.S. alone. VistaGen is also exploring opportunities to leverage its current Phase 1 clinical program to enable additional Phase 2 clinical studies of AV-101 for epilepsy, Parkinson's disease and depression. To date, VistaGen has been awarded over $8.5 million from the NIH for development of AV-101. Visit VistaGen at http://www.VistaGen.com, follow VistaGen at http://www.twitter.com/VistaGen or view VistaGen's Facebook page at http://www.facebook.com/VistaGen

Cautionary Statement Regarding Forward Looking Statements The statements in this press release that are not historical facts may constitute forward-looking statements that are based on current expectations and are subject to risks and uncertainties that could cause actual future results to differ materially from those expressed or implied by such statements. Those risks and uncertainties include, but are not limited to, risks related to regulatory approvals, the issuance and protection of patents and other intellectual property, the success of VistaGen's ongoing clinical studies, including the safety and efficacy of its drug candidate, AV-101, the failure of future drug rescue and pilot preclinical cell therapy programs related to VistaGen's stem cell technology-based Human Clinical Trial in a Test Tube platform, its ability to enter into drug rescue collaborations, risks and uncertainties relating to the availability of substantial additional capital to support VistaGen's research, development and commercialization activities, and the success of its research, development, regulatory approval, marketing and distribution plans and strategies, including those plans and strategies related to AV-101 and any drug rescue variants identified and developed by VistaGen. These and other risks and uncertainties are identified and described in more detail in VistaGen's filings with the Securities and Exchange Commission (SEC). These filings are available on the SEC's website at http://www.sec.gov. VistaGen undertakes no obligation to publicly update or revise any forward-looking statements.

SOURCE: VistaGen Therapeutics, Inc.

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VistaGen Secures Key U.S. Patent Covering Stem Cell Technology Methods Used To Test Drug Candidates For Liver Toxicity

Pharmaceutical Company Merck Serono Signs an Agreement to Use Kadimastem's Platform for Drug Screening

By Stem Cell Treatment

NES ZIONA, Israel--(BUSINESS WIRE)--

Kadimastem, an Israeli Biotechnology company that develops human pluripotent stem cell-related products, today announced the signing of a five year framework agreement with Merck Serono, a division of Merck KGaA, Darmstadt, Germany. The agreement concerns the use of Kadimastem's drug-screening platform to discover new oral drugs for the treatment of the neurological disease Multiple Sclerosis (MS).

The system developed by Kadimastem allows using human functional tissues produced industrially from pluripotent stem cells as a means to search for potential new drugs, a direct approach that has advantages over the use of animals. In Multiple Sclerosis, the insulating myelin sheaths which cover many nerves in the brain and spinal cord are destroyed due to loss of the myelin-forming cells resulting in the impairment of nerve function and severe neurological disabilities. It is estimated that 2.5 million patients suffer from this disease around the globe. While the existing treatments act by slowing down the loss of myelin-forming cells, there is great interest in finding new medications that could repair the myelin by stimulating the regeneration of myelin-forming cells. The drug-screening project, to be carried out through the Kadimastem-Merck Serono agreement, aims precisely at the discovery of potential oral drugs that act by stimulating myelin repair.

We are pleased to announce this agreement with Merck-Serono, a company with robust experience in drug discovery, development and marketing in the Multiple Sclerosis area, said Mr. Yossi Ben-Yossef, CEO of Kadimastem. The undisclosed compensation for this agreement will provide financial support for Kadimastem's own in-house drug discovery initiatives, in the field of neurodegenerative diseases as well as in the field of Diabetes. Kadimastem also produces pancreatic islet cells from pluripotent stem cells, for screening of drugs enhancing insulin secretion and eventually for cellular therapy of Diabetes.

Prof. Michel Revel, Chief Scientist of Kadimastem, further commented: We are very proud that after a thorough evaluation, Merck Serono decided to sign an agreement with us. We see it as a proof of our excellence in developing human myelin-forming cells and our capabilities in drug screening. We believe that this agreement is a first step towards further collaboration with Merck Serono and other Pharmaceutical companies, in which our capabilities in drug screening on human functional cell systems will synergize with their capabilities in medicinal chemistry and clinical development, to make drugs available more rapidly and more efficiently.

Prof. Revel from the Weizmann Institute of Science was the Chief Scientist of InterPharm, an Israeli biotech company part of the Merck Serono group that developed Prof. Revel's groundbreaking research which lead to Rebif (mammalian cell-produced recombinant Interferon beta-1a), today a leading drug for the treatment of Multiple Sclerosis with annual sales by Merck Serono of over US$ 2.3 billion.

Mr. Amir Naiberg, CEO of Yeda, the commercial arm of the Weizmann Institiute of Science, said: We are excited that Kadimastem, that was established around one of our technologies, is collaborating with Merck Serono. Merck Serono has a long and successful tradition of developing products that emerged from the Weizmann Institute labs,and we hope that Kadimastem will be another link in this chain.

About Kadimastem

Kadimastem (www.kadimastem.com) is a biotechnology company focused on the industrial development and commercialization of human pluripotent stem cell-based products. At Kadimastem, the pluripotent stem cell technology is used to produce specialized human cells and tissues for two major types of medical applications: 1) Drug-screening platforms using human functional cells and tissues as in vitro assays for discovering novel therapeutic drugs for neurological diseases and diabetes, and 2) Cell therapy for regenerative medicine, to repair tissues and organs affected by diseases, such as implanting insulin-secreting pancreatic islet cells as a treatment for insulin-dependent diabetes. Kadimastem is developing these technologies in its state of the art 1,000 m2 facilities in the Weizmann Science Park (Ness Ziona, Israel), for industrial research and production, with a staff of PhD-level and MSc-level scientists. Kadimastem uses pluripotent human stem cells made available through licensing agreements with the Embryonic Stem Cell Center of the Hadassah Medical center in Jerusalem (Prof. Benjamin Reubinoff) and the Shaarei Zedek Medical Center, Jerusalem, Israel.

About Merck Serono

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Pharmaceutical Company Merck Serono Signs an Agreement to Use Kadimastem's Platform for Drug Screening

Dr. Aaron Schimmer Receives the Till and McCulloch Award – Award Lecture to be Presented Today on Drug Screening with …

By Stem Cell Treatment

MONTRAL, April 30, 2012 /CNW/ - Canada's most coveted stem cell prize will be awarded to a Stem Cell Network researcher who has used drug screening to find a potential new treatment for a deadly form of cancer.

Dr. Aaron Schimmer, associate professor in the University of Toronto's Department of Medical Biophysics and a clinician-scientist in the Princess Margaret Cancer Program/Ontario Cancer Institute at University Health Network, has received the 2012 Till & McCulloch Award, presented each year by the Stem Cell Network in recognition of the year's most influential peer-reviewed article by a researcher in Canada. Dr. Schimmer will accept the award and present a lecture entitled "Novel therapeutic strategies to target leukemia stem cells" as part of the Till and McCulloch Meetings in Montral at 2 p.m. this afternoon.

In an advance interview, Dr. Schimmer described his findings and their potential as a new drug therapy in the treatment of leukemia.

"When you treat patients with leukemia, you can kill off 99 per cent of their leukemic cells with just about anything, and yet, 80 per cent or more of patients relapse," Schimmer explained. "When we examined this in a really objective way, the question was not how to kill off those bulk cells - we already knew how to do that - but are we really missing a critical component of what we should be targeting?"

Dr. Schimmer and his team eventually found that cutting off the energy production capacity of bulk leukemia cells and leukemia stem cells was a way of treating the disease, and that the compound tigecyclinean FDA-approved antibiotic sometimes used to treat skin and abdominal infectionswas up to the task.

"Tigecycline appeared to work by essentially shutting down the energy supply of the leukemia cells and stem cells," said Dr. Schimmer. "Essentially it is like producing a selective power outage in leukemia cells but not normal cells."

By focusing on FDA-approved drugs, Dr. Schimmer was able to produce results that were quickly translated into clinical trials. Less than two years passed between his initial findings and the commencement of a phase-one clinical triala process that can otherwise take three or four times that long.

"It is incredibly impressive how much progress Dr. Schimmer has made in such a short period of time by using these stem cell screening techniques," said Stem Cell Network Scientific Director Michael Rudnicki. "By identifying drugs which are already approved for human therapies and testing their efficacy in treating diseases such as leukemia, Dr. Schimmer has shaved years off of the clinical trial process. It is likely that his discovery will improve the outcomes for many patients in the near future."

In 2005, the Stem Cell Network established the Till & McCulloch Award in honour of Canadians Drs. James Till and Ernest McCulloch, whose pioneering work established the field of stem cell research. The Award had been granted at the Stem Cell Network's Annual Scientific Meeting, but became part of the Till & McCulloch Meetings this year.

The previous winner was Timothy Caulfield, who was recognized for his global leadership in the field of stem cell ethics.

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Dr. Aaron Schimmer Receives the Till and McCulloch Award - Award Lecture to be Presented Today on Drug Screening with ...

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