Calcium regulation of tight junction permeability

Bleich, Markus, Shan, Qixian and Himmerkus, Nina (2012) Calcium regulation of tight junction permeability Annals of the New York Academy of Sciences, 1258 (1). pp. 93-99. DOI 10.1111/j.1749-6632.2012.06539.x.

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Abstract

Calcium transport in the kidney is a key element in Ca(2+) homeostasis. Ca(2+) concentration, or more precisely the activity of freely dissociated Ca(2+) ions, is a prerequisite for the appropriate function of virtually every cell. Along the renal tubule, about 85% of the filtered Ca(2+) is transported across tight junctions at the paracellular route of reabsorption. Therefore, claudins, which form the conductive and selective part of the tight junctions, have moved into the focus of interest with respect to regulatory events in the control of Ca(2+) transport. This control is of particular interest for the kidney since it has to defend itself against nephrocalcinosis and kidney stones. Tight junction proteins provide pathways, driving forces, and regulatory targets for Ca(2+) transport. Direct regulation of tight junctions by changing Ca(2+) concentrations allows fast and efficient feedback loops to adapt Ca(2+) transport to the requirements of kidney function and plasma Ca(2+) concentration.

Document Type: Article
Research affiliation: Kiel University
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
DOI etc.: 10.1111/j.1749-6632.2012.06539.x
ISSN: 00778923
Projects: Future Ocean
Date Deposited: 08 Mar 2017 10:33
Last Modified: 08 Mar 2017 10:33
URI: http://eprints.uni-kiel.de/id/eprint/36840

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