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Biochim Biophys Acta. 2008 Mar;1778(3):729-56. Epub 2007 Sep 4.

Crosstalk of tight junction components with signaling pathways.

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  • 1Center for Research and Advanced Studies (Cinvestav), Department of Physiology, Biophysics and Neuroscience, Ave. Instituto Politécnico Nacional 2508, México D. F. 07360, México. lorenza@fisio.cinvestav.mx

Abstract

Tight junctions (TJs) regulate the passage of ions and molecules through the paracellular pathway in epithelial and endothelial cells. TJs are highly dynamic structures whose degree of sealing varies according to external stimuli, physiological and pathological conditions. In this review we analyze how the crosstalk of protein kinase C, protein kinase A, myosin light chain kinase, mitogen-activated protein kinases, phosphoinositide 3-kinase and Rho signaling pathways is involved in TJ regulation triggered by diverse stimuli. We also report how the phosphorylation of the main TJ components, claudins, occludin and ZO proteins, impacts epithelial and endothelial cell function.

PMID:
17950242
[PubMed - indexed for MEDLINE]
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