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UCLA stem cells scientists make electrically active motor neurons from iPS cells
Date:2/24/2009

Stem cells scientists at UCLA showed for the first time that human induced pluripotent stem (iPS) cells can be differentiated into electrically active motor neurons, a discovery that may aid in studying and treating neurological disorders.

Additionally, the motor neurons derived from the iPS cells appeared to be similar in function and efficiency to those derived from human embryonic stem cells, although further testing needs to be done to confirm that. If the similarities are confirmed, the discovery may open the door for new treatments for neurological disorders using patient-specific cells.

The study appears today in the early online edition of the journal Stem Cells. It can be accessed here: http://www.stemcells.com/view/0/index.html.

"It is clear from the literature that you can make at least immature versions of many different kinds of cells from human iPS cells," said William Lowry, a Broad Stem Cell Research Center scientist, an assistant professor of molecular, cell and developmental biology and senior author of the study. "But there is not a lot of data published describing the generation of fully functional cells from human iPS cells."

Lowry and his team used skin fibroblasts and reprogrammed them back into an embryonic state, with the ability to differentiate into any cell type in the human body. They then took those cells and differentiated them into motor neurons.

Neurons are the responsive cells in the nervous system that process and transmit information by electrochemical signaling. Motor neurons receive signals from the brain and spinal cord and regulate muscle contraction.

The study demonstrates the feasibility of using iPS-derived motor neurons and their progenitors to replace damaged or dead motor neurons in patients with certain disorders. It also opens the possibility of studying motor neuron-related diseases in the lab
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Contact: Kim Irwin
kirwin@mednet.ucla.edu
310-435-9457
University of California - Los Angeles
Source:Eurekalert

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