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Title: Lack of an endothelial store-operated Ca2+ current impairs agonist-dependent vasorelaxation in TRP4-/- mice
Authors: Freichel, M ×
Suh, Suk Hyo
Pfeifer, A
Schweig, U
Trost, C
Weissgerber, P
Biel, M
Philipp, S
Freise, D
Droogmans, Guillaume
Hofmann, F
Flockerzi, V
Nilius, Bernd #
Issue Date: Feb-2001
Series Title: Nature cell biology. vol:3 issue:2 pages:121-7
Abstract: Agonist-induced Ca2+ entry into cells by both store-operated channels and channels activated independently of Ca2+-store depletion has been described in various cell types. The molecular structures of these channels are unknown as is, in most cases, their impact on various cellular functions. Here we describe a store-operated Ca2+ current in vascular endothelium and show that endothelial cells of mice deficient in TRP4 (also known as CCE1) lack this current. As a consequence, agonist-induced Ca2+ entry and vasorelaxation is reduced markedly, showing that TRP4 is an indispensable component of store-operated channels in native endothelial cells and that these channels directly provide an Ca2+-entry pathway essentially contributing to the regulation of blood vessel tone.
URI: 
ISSN: 1465-7392
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physiology Section (-)
Laboratory of Ion Channel Research
Department of Cellular and Molecular Medicine - miscellaneous
× corresponding author
# (joint) last author

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