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- W2895282016 abstract "S1P has known endothelial barrier-protective properties, but whether this extends to the BBB is unclear. We hypothesized that alcohol-induced disruption of brain microvascular endothelial barrier function and junctional protein organization can be ameliorated by S1P treatment.Cultured primary HBMEC monolayers were used to characterize endothelial-specific mechanisms of BBB regulation. TER and apparent permeability coefficients for albumin, dextran-4 kDa, and sodium fluorescein were used as indices of barrier function. Junctional localization of Claudin-5, VE-cadherin, and β-catenin was determined by immunofluorescence confocal microscopy. S1P was applied following treatment with alcohol.Alcohol significantly impaired HBMEC TER. Application of S1P after alcohol treatment resulted in a hastened recovery to the baseline HBMEC TER. Alcohol-treated HBMEC had a significantly higher mean permeability than control that was reversed by S1P. Alcohol caused the formation of gaps between cells. Treatment with S1P (after alcohol) increased junctional localization of VE-Cadherin, Claudin-5, and β-catenin.Alcohol impairs the barrier function and junctional organization of HBMEC monolayers. S1P enhanced barrier function and restored junctions in the presence of alcohol, and thus may be useful for restoring BBB function during alcohol intoxication." @default.
- W2895282016 created "2018-10-12" @default.
- W2895282016 creator A5053382564 @default.
- W2895282016 creator A5073231087 @default.
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- W2895282016 date "2018-10-17" @default.
- W2895282016 modified "2023-10-17" @default.
- W2895282016 title "Sphingosine-1-phosphate protects against brain microvascular endothelial junctional protein disorganization and barrier dysfunction caused by alcohol" @default.
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- W2895282016 doi "https://doi.org/10.1111/micc.12506" @default.
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