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- W2103262172 abstract "Cyanide (CN)-induced chemical anoxia of cultured mouse proximal tubular (MPT) cells increased the kinase activity of c-Src by approximately threefold. 4-Amino-5-(4-chlorophenyl)-7-(t-butyl)pyrazolo[3,4-d]pyrimidine (PP2), a specific inhibitor of c-Src, prevented Src activation. CN also increased the permeability of MPT cell monolayers, an event ameliorated by PP2. During CN treatment, the proteins of the zonula adherens (ZA; E-cadherin and the catenins) disappeared from their normal location at cell-cell borders and appeared within the cytosol. CN also resulted in the appearance of c-Src at cell-cell borders. PP2 prevented these CN-induced alterations in the distribution of ZA proteins and c-Src. CN also increased the association of c-Src with beta-catenin and p120 and induced a substantial increase in tyrosine phosphorylation of both catenins. PP2 prevented the CN-induced phosphorylation of these catenins. In summary, we show that CN-induced chemical anoxia activates c-Src and induces its translocation to cell-cell junctions where it binds to and phosphorylates beta-catenin and p120. Our findings suggest that these events contribute to the loss of the epithelial barrier function associated with chemical anoxia." @default.
- W2103262172 created "2016-06-24" @default.
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- W2103262172 date "2003-03-01" @default.
- W2103262172 modified "2023-10-16" @default.
- W2103262172 title "Chemical anoxia of tubular cells induces activation of c-Src and its translocation to the zonula adherens" @default.
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- W2103262172 doi "https://doi.org/10.1152/ajprenal.00172.2002" @default.
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