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- W2085707216 abstract "BACKGROUND & AIMS: The initial pathophysiological events that characterize acute pancreatitis include the formation of pancreatic edema. An interstitial accumulation of fluid, however, is incompatible with the presence of intact intercellular junctions between acinar cells. This study examined the major components of adherens junctions, E-cadherin, alpha-catenin, beta-catenin, and actin, during the initial phase of experimental pancreatitis.METHODS: Pancreatitis was induced in rats by 10 micrograms.kg-1.h-1 intravenous cerulein for up to 12 hours. Adherens junction proteins were localized by immunocytochemistry for fluorescence microscopy or electron microscopy, their expression was studied by slot blot analysis, and their association was investigated by immunoprecipitation and Western blot.RESULTS: During a rapid increase of E-cadherin-encoding RNA, E-cadherin protein declined only moderately and, unlike its cytoskeletal binding partner actin, was not proteolytically cleaved during pancreatitis. Morphologically, E- cadherin and beta-catenin were localized at the basolateral cell membrane from where they rapidly dissociated early in pancreatitis and to where they slowly relocalized during the subsequent course. E- cadherin/beta-catenin complexes disintegrated and reassembled completely in parallel on immunoprecipitation experiments.CONCLUSIONS: The dissociation of adherens junctions and the internalization, relocalization, and reassembly of their major components seem to represent the critical biochemical event at cell-cell contacts during edema formation and resolution in acute pancreatitis.(Gastroenterology 1997 Oct;113(4):1355-66)" @default.
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- W2085707216 date "1997-10-01" @default.
- W2085707216 modified "2023-10-04" @default.
- W2085707216 title "Dissociation and reassembly of adherens junctions during experimental acute pancreatitis" @default.
- W2085707216 doi "https://doi.org/10.1053/gast.1997.v113.pm9322531" @default.
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