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. 2017 Aug 4;7:357. doi: 10.3389/fcimb.2017.00357

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Copyright © 2017 Yi, Huang, Guo, Zhou, Chang and Huan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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GSK-3beta/GEF-H1/ROCK pathway is involved in LPS-induced HPMECs barrier disruption by beta-catenin and ZO-1. HPMECs monolayer was pretreated with SB-216763 (20 μM) (A), GEF-H1 siRNA (B), or Y-27632 (10 μM) (C), for indicated times and then was exposed to LPS (0.1 μg/ml) for 3 h before fixation and staining with anti-beta-catenin and anti-ZO-1 antibody as described in Materials and Methods. Beta-catenin (green) and ZO-1 (green) were visualized by immunofluorescence microscopy. Red arrows not only represent the expression of beta-catenin and ZO-1 in the membrane of HPMECs but also represent the cell-cell gaps formation in the ECs monolayer.