The integrin alphaVbeta6 binds and activates latent TGFbeta3 |
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Authors: | Annes Justin P Rifkin Daniel B Munger John S |
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Institution: | Department of Cell Biology, New York University School of Medicine, New York, NY 10016, USA. |
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Abstract: | Transforming growth factors-beta (TGFbeta1, 2 and 3) are secreted in a complex with their propeptides (latency-associated peptide 1 (LAP1), 2 and 3). TGFbeta signaling requires the dissociation of LAP and TGFbeta, a process termed latent TGFbeta activation. This process is a critical but incompletely understood step in the regulation of TGFbeta function. In particular, the extent to which activation mechanisms differ among the three TGFbeta isoforms is relatively unexplored. We show here that alphaVbeta6 binds and activates latent TGFbeta3. |
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