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- W2123179922 abstract "Posterior capsular opacification (PCO) is the major complication arising after cataract treatment. PCO occurs when the lens epithelial cells remaining following surgery (LCs) undergo a wound healing response producing a mixture of α-smooth muscle actin (α-SMA)-expressing myofibroblasts and lens fibre cells, which impair vision. Prior investigations have proposed that integrins play a central role in PCO and we found that, in a mouse fibre cell removal model of cataract surgery, expression of αV integrin and its interacting β-subunits β1, β5, β6, β8 are up-regulated concomitant with α-SMA in LCs following surgery. To test the hypothesis that αV integrins are functionally important in PCO pathogenesis, we created mice lacking the αV integrin subunit in all lens cells. Adult lenses lacking αV integrins are transparent and show no apparent morphological abnormalities when compared with control lenses. However, following surgical fibre cell removal, the LCs in control eyes increased cell proliferation, and up-regulated the expression of α-SMA, β1-integrin, fibronectin, tenascin-C and transforming growth factor beta (TGF-β)-induced protein within 48 hrs, while LCs lacking αV integrins exhibited much less cell proliferation and little to no up-regulation of any of the fibrotic markers tested. This effect appears to result from the known roles of αV integrins in latent TGF-β activation as αV integrin null lenses do not exhibit detectable SMAD-3 phosphorylation after surgery, while this occurs robustly in control lenses, consistent with the known roles for TGF-β in fibrotic PCO. These data suggest that therapeutics antagonizing αV integrin function could be used to prevent fibrotic PCO following cataract surgery." @default.
- W2123179922 created "2016-06-24" @default.
- W2123179922 creator A5003642180 @default.
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- W2123179922 creator A5047291776 @default.
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- W2123179922 date "2014-02-04" @default.
- W2123179922 modified "2023-10-17" @default.
- W2123179922 title "The roles of α<sub>V</sub>integrins in lens<scp>EMT</scp>and posterior capsular opacification" @default.
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- W2123179922 doi "https://doi.org/10.1111/jcmm.12213" @default.
- W2123179922 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4000117" @default.
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- W2123179922 hasPublicationYear "2014" @default.
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