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Cancer Drug Aids in Regeneration of Spinal Cord Injuries

by Sheela Philomena on January 31, 2011 at 1:02 PM
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 Cancer Drug Aids in Regeneration of Spinal Cord Injuries

Scientists have identified that regeneration obstacles after a spinal cord injury is reduced by the use of cancer drug Taxol.

After a spinal cord injury a number of factors impede the regeneration of nerve cells. Two of the most important of these factors are the destabilization of the cytoskeleton and the development of scar tissue. While the former prevents regrowth of cells, the latter creates a barrier for severed nerve cells.

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Taxol, the trade name of a drug currently used for cancer treatment, has now been shown to promote regeneration of injured central nervous system (CNS)-nerve cells.

The scientists report that Taxol promotes regeneration of injured CNS-nerve cells in two ways: Taxol stabilizes the microtubules so that their order is maintained and the injured nerve cells regain their ability to grow.
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In addition, Taxol prevents the production of an inhibitory substance in the scar tissue. The scar tissue, though reduced by Taxol, will still develop at the site of injury and can thus carry out its protective function. Yet growing nerve cells are now better able to cross this barrier.

Experiments in rats performed by this group verified the effects of Taxol. These researchers supplied the injury site after a partial spinal cord lesion with Taxol via a miniature pump. After just a few weeks, animals showed a significant improvement in their movements.

"So far we tested the effects of Taxol immediately after a lesion", explains Farida Hellal, the first author of the study.

The study has been published in the online issue of the journal Science.

Source: ANI
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