VANCOUVER -- For the first time ever, University of B.C. scientists have used human embryonic stem cell transplants to reverse Type 1 diabetes in mice with the disease, giving hope to about 300 million people around the world who suffer from the chronic disease. A 13-member team, whose milestone work is published in the journal Diabetes, shows that after transplantation, the stem cells matured into insulin-secreting, pancreatic beta-cells. The cells automatically sensed blood sugar levels to release the right amount of insulin and a few dozen diabetic mice were gradually weaned off insulin given to them over a period of months. Insulin is produced by beta-cells to to help the body absorb sugar and use it for energy. Essentially, the mice were cured of their diabetes by placing the body back in charge of regulated insulin production as it is in healthy, non-diabetics, said lead author Timothy Kieffer. It took about four to five months for the [stem] cells to become functional in our experiments and the mice were able to maintain good blood glucose levels even when fed a high-glucose diet, said Kieffer, a UBC professor in the department of cellular and physiological sciences. Type 1 diabetes otherwise known … Continue reading →

SAN DIEGO CA--(Marketwire -06/29/12)- Medistem Inc. (MEDS) announced today notice of allowance from the United States Patent and Trademark Office (USPTO) for a patent covering the use of fat stem cells, and cells associated with fat stem cells for treatment of diseases related to a dysfunctional immune system. Such diseases include multiple sclerosis, Type 1 diabetes, rheumatoid arthritis and lupus. The allowed patent, entitled "Stem Cell Mediated Treg Activation/Expansion for Therapeutic Immune Modulation" has the earliest priority date of December 2006. "We have previously published that giving multiple sclerosis patients cells extracted from their own fat tissue, which contains stem cells, appears to confer clinical benefit in a pilot study," said Thomas Ichim, CEO of Medistem. "The current patent that has been allowed, in the broadest interpretation of the claims, gives us exclusive rights to the use of specific types of fat stem cell therapy for autoimmune diseases such as multiple sclerosis." Subsequent to the filing of the patent application, Medistem together with collaborators at the Lawson Health Sciences Research Institute, Canada, reported data that fat tissue contains high numbers of T regulatory cells, a type of immune cell that is capable of controlling autoimmunity. This finding was independently confirmed … Continue reading →

COLUMBIA, Md.--(BUSINESS WIRE)-- Osiris Therapeutics, Inc. (OSIR), announced today the expansion of its intellectual property protection around Prochymal (remestemcel-L). The United States Patent and Trademark Office recently granted Osiris two patents that cover multiple mechanisms of action related to cardiac tissue repair. Additionally, Osiris has enhanced its mesenchymal stem cell (MSC) patent estate with the issuance of patents across Europe and Australia covering stem cells expressing all therapeutically useful levels of cell surface receptors for TNF-alpha, a receptor essential to the cell's ability to counteract inflammation. These patents further support Osiris' considerable intellectual property position, which includes 48 issued U.S. patents around the production, composition, testing and use of the mesenchymal stem cell from both allogeneic and autologous sources. "These recent additions to Osiris patent estate, combined with the existing broad coverage of our pioneering MSC platform technology, reinforce our industry leading IP portfolio and bolster our dominant position regarding the manufacture and use of mesenchymal stem cells for the treatment of a broad range of diseases, said Chris Alder, Chief Intellectual Property Counsel of Osiris. We have invested significant time and resources building our intellectual property estate, and with the commercialization of Prochymal, we are preparing to take the … Continue reading →

Neuralstem, the Rockville company thats developing a stem cell treatment for patients with amyotrophic lateral sclerosis, has begun testing the safety of its treatment for major depressive disorder. The compound, NSI-189, stimulates new neuron growth in the brain's hippocampus region, which scientists think is involved in depression and other conditions, including Alzheimer's disease, anxiety and post-traumatic stress disorder, according to a company statement. The phase 1b study involves 24 depressed patients and is expected to run six months. "We believe it could help patients who suffer from depression via a new mechanism that does not seek to modulate brain chemistry, but rather stimulates new neuron growth in the hippocampus and increases hippocampal volume, thereby potentially addressing the problem at the source," Karl Johe, Neuralstem's chief scientific officer, said in the statement. The company has researched hippocampal stem cell lines since 2000 and in 2009 won U.S. patents for four chemical entities that generate new neurons. In studies, NSI-189 stimulated such growth in mice. In other Maryland bioscience industry news: Supernus Pharmaceuticals has received tentative marketing approval from the Food and Drug Administration for its once-daily, extended release version of an epilepsy treatment. The FDA said it has completed its review … Continue reading →

CARLSBAD, CA--(Marketwire -06/28/12)- International Stem Cell Corporation (ISCO) http://www.internationalstemcell.com today announced that its Research and Development team has advanced its program to create a functional and transplantable human cornea by developing a new method to derive corneal endothelium-like cells from human pluripotent stem cells. This work represents a significant step towards the creation of complete cornea tissue that can be used for transplantation and supports prior data showing indications of corneal endothelium generated by ISCO's collaborators at Sankara Nethralaya Eye Hospital, India. Such cells by themselves may potentially promote wound healing and regeneration of the cornea and therefore could be used as a standalone medical treatment. Development and commercialization of ISCO's stem cell-derived cornea tissue along with manufacturing of Lifeline Cell Technology's media and cellular products are the foundation for our expansion to the Asian markets and for clinical collaboration with Indian biomedical organizations including Sankara Nethralaya Eye Hospital and All-India Institute for Medical Sciences. Asia represents a huge potential growth market for ISCO's Cornea program. For example, in India alone there are more than 4 million people suffering from corneal vision impairment with limited access to corneal tissue. ISCO's intention is to work with our clinical affiliate in India … Continue reading →