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Regenerating nerve cells: Research offers hope in new treatment for spinal cord injuries

Date:
May 3, 2011
Source:
Rutgers University
Summary:
Scientists have developed a chemically synthesized siRNA molecule that allows regeneration of nerve cells.

Rutgers researchers have developed an innovative new treatment that could help minimize nerve damage in spinal cord injuries, promote tissue healing and minimize pain.

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After a spinal cord injury there is an increased production of a protein (RhoA) that blocks regeneration of nerve cells that carry signals along the spinal cord and prevents the injured tissue from healing.

Scientists at the W.M. Keck Center for Collaborative Neuroscience and Quark Pharmaceuticals Inc. have developed a chemically synthesized siRNA molecule that decreases the production of the RhoA protein when administered to the spine and allows regeneration of the nerve cells.

"It is exciting because this minimally-invasive treatment can selectively target the injured tissue and thereby promote healing and reduce pain," says Martin Grumet, associate director of the Keck Center and senior author of a recent study published in the Journal of Neurotrauma.

The neuropathic pain, also known as phantom pain that occurs as a result of a spinal cord injury is often associated with an increased production of RhoA. When researchers injected the chemically synthesized molecular substance into the spinal cords of laboratory rats with spinal cord injury using a procedure similar to a spinal tap, there was an overall improvement in tissue healing and recovery.

More than 250,000 people in the United States are living with a spinal cord injury and currently there is no way to reverse the damage. No drugs for early treatment of spinal cord injury have been approved in over a decade. Based on this joint research, Quark Pharmaceuticals, Inc now has a drug development program for the treatment of spinal cord injury and neuropathic pain. This new research is supported by grants from the New Jersey Commission for Spinal Cord Research and Quark.


Story Source:

The above story is based on materials provided by Rutgers University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Seiji Otsuka, Crista Adamson, Venkatachalam Sankar, Kurt M Gibbs, Noriko Kane-Goldsmith, Jennifer Jernstedt Ayer, Joanne Babiarz, Hagar Kalinski, Hagit Ashush, Evgenia Alpert, Ron Lahav, Elena Feinstein, Martin Grumet. Delayed intrathecal delivery of RhoA siRNA to the contused spinal cord inhibits allodynia, preserves white matter and increases serotonergic fiber growth. Journal of Neurotrauma, 2011; 110329050021037 DOI: 10.1089/neu.2010.1568

Cite This Page:

Rutgers University. "Regenerating nerve cells: Research offers hope in new treatment for spinal cord injuries." ScienceDaily. ScienceDaily, 3 May 2011. <www.sciencedaily.com/releases/2011/05/110503143520.htm>.
Rutgers University. (2011, May 3). Regenerating nerve cells: Research offers hope in new treatment for spinal cord injuries. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2011/05/110503143520.htm
Rutgers University. "Regenerating nerve cells: Research offers hope in new treatment for spinal cord injuries." ScienceDaily. www.sciencedaily.com/releases/2011/05/110503143520.htm (accessed December 20, 2014).

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