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Early Results Show Promise for Stem Cells in Treating Chronic Liver Failure

October 12th, 2012 12:18 am

Stem cell transfusions may someday replace the need for transplants in patients who suffer from liver failure caused by hepatitis B, according to a new study coming out of Beijing. . The results are published in the October issue of STEM CELLS Translational Medicine. Worldwide more than 500,000 people die each year from this condition.

Durham, NC (PRWEB) October 11, 2012

In China, hepatitis B virus (HBV) infection accounts for the highest proportion of liver failure cases. While liver transplantation is considered the standard treatment, it has several drawbacks including a limited number of donors, long waiting lists, high cost and multiple complications. Our study shows that mesenchymal stem cell (MSCs) transfusions might be a good, safe alternative, said Fu-Sheng Wang, Ph.D., M.D., the studys lead author and director of the Research Center for Biological Therapy (RCBT) in Beijing.

Wang along with RCBT colleague, Drs. Ming Shi and Zheng Zhang of the Research Center for Biological Therapy, The Institute of Translational Hepatology led the group of physician-scientists from the centers and Beijing 302 Hospital who conducted the study.

MSC transfusions had already been shown to improve liver function in patients with end-stage liver diseases. This time, the researchers wanted to gauge the safety and initial efficacy of treating acute-on-chronic liver failure (ACLF) with MSCs. The American Association for the Study of Liver Diseases and the European Association for the Study of the Liver define ACLF as an acute deterioration of pre-existing chronic liver disease usually related to a precipitating event and associated with increased mortality at three months due to multisystem organ failure. The short-term mortality rate for this condition is more than 50 percent.

MSCs have self-renewing abilities and the potential to differentiate into various types of cells. More importantly, they can interact with immune cells and cause the immune system to adjust to the desired level.

Of the 43 patients in this pilot study each of whom had liver failure resulting from chronic HBV infection 24 were treated with MSCs taken from donated umbilical cords and 19 were treated with saline as the control group. All received conventional therapy as well. The liver function, adverse events and survival rates were then evaluated during the 48-week or 72-week follow-up period.

Along with increased survival rates, the patients liver function improved and platelet count increased. No significant side effects were observed throughout the treatment and follow-up period.

While the results are preliminary and this pilot study includes a small number of patients, MSC transfusions appear to be safe and may serve as a novel therapeutic approach for HBV-associated ACLF patients, Dr. Shi said.

The study also highlights several key issues that will need to be considered in the design of future clinical studies, such as the optimal type of stem cells that will be infused, the minimum effective number of the cells and the best route of administration, Dr. Wang added.

More here:
Early Results Show Promise for Stem Cells in Treating Chronic Liver Failure

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