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Pitt researchers discover big role for microRNA in lethal lung fibrosis
Date:4/28/2010

ation showed them that let-7d is inhibited by the cytokine TGF-beta, a signaling protein that promotes the development of fibrosis through several biological pathways.

In another experiment, the researchers made an antagonist that inhibits let-7d and administered it to several mice through their windpipes for a few days. When examined soon after, the lungs of the mice looked very much like what is seen in patients with early lung fibrosis.

"These results suggest that by increasing let-7d in the lung, we may be able to slow down or even prevent lung fibrosis," Dr. Kaminski said. "Our next challenge is to develop methods that will allow us to safely do that so we can test its therapeutic value."


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Contact: Anita Srikameswaran
SrikamAV@upmc.edu
412-578-9193
University of Pittsburgh Schools of the Health Sciences
Source:Eurekalert

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