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Transplanted neural stem cells slows als onset and progression in mouse models
Date:12/19/2012

WORCESTER, MA Promising new research provides evidence that ALS, amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, may be treatable using neural stem cells. A consortium of researchers at multiple institutions, including the University of Massachusetts Medical School, Sanford-Burnham Medical Research Institute and Brigham and Women's Hospital, have shown that neural stem cells, when transplanted into the spinal cord of a mouse model with familial ALS, slow disease onset and progression while improving motor function, breathing and survival time compared to untreated mice. A summary of the studies was published online in Science Translational Medicine.

ALS is a progressive, neurodegenerative disorder affecting the motor neurons in the central nervous system. As motor neurons die, the brain's ability to send signals to the body's muscles is compromised. This leads to loss of voluntary muscle movement, paralysis and eventually respiratory failure. The cause of most cases of ALS is not known.

Approximately 10 percent of cases are inherited. Though investigators at UMass Medical School and elsewhere have identified several genes shown to cause inherited or familial ALS, almost 50 percent of these cases have an unknown genetic cause.

Neural stem cells are the precursors of all brain cells. They can self-renew, making more neural stem cells, and differentiate, becoming nerve cells or other brain cells. These cells can also rescue malfunctioning nerve cells and help preserve and regenerate brain tissue. But they've never before been studied extensively in a good model of adult ALS.

In 11 independent studies, the group, headed by Dr. Evan Snyder of the Burnham Institute, transplanted neural stem cells into the spinal cord of a mouse model of ALS. The transplanted neural stem cells benefited the mice with ALS by preserving the health and function of the remaining nerve cells.

Specifically, the
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Contact: Jim Fessenden
james.fessenden@umassmed.edu
508-856-2000
University of Massachusetts Medical School
Source:Eurekalert

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