"Our study showed that cell transplantation therapy may improve brain receptor function in patients who suffered from cerebral stroke, improving their neurological symptoms," said Satoshi Kuroda, M.D., Ph.D., who is with the department of neurosurgery at Hokkaido University School of Medicine in Sapporo, Japan. "How the transplanted bone marrow stromal cells restore the lost neurologic function is not clear," added the co-author of "Improved Expression of -Aminobutyric Acid Receptor in Mice With Cerebral Infarct and Transplanted Bone Marrow Stromal Cells: An Autoradiographic and Histologic Analysis."
What researchers do know is that cells found in an adult's bone marrow--stromal cells--may provide a safe, ethical source for replacing brain cells lost to neurological disorders such as Alzheimer's and Parkinson's diseases. Studies have shown that cells taken from adult human bone marrow may possibly be converted into neural cells--cells with the ability to convert to any type of cell found in the body--that could then be transplanted into the brain.
Using autoradiography (a technique that uses X-ray film to visualize radioactively labeled molecules) and fluorescence immunohistochemistry (the testing of sections of tissue for specific proteins by attaching them with specific antibodies), the researchers examined the binding of a radioactive molecule with a specific receptor protein in animals with cerebral infarcts or strokes. Their findings "clearly showed" that bone marrow stromal cells "may contribute to neural tissue regeneration by migrating toward the periinfarct area and acquiring the neuron-specific receptor function," reports the JNM article
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Contact: Maryann Verrillo
mverrillo@snm.org
7037089000
Society of Nuclear Medicine
15-Mar-2006