Contribution of K2P potassium channels to cardiac physiology and pathophysiology
IDENTIFICADOR UNIVERSAL: http://hdl.handle.net/11093/2531
VERSIÓN EDITADA: https://www.mdpi.com/1422-0067/22/12/6635
MATERIA UNESCO: 3207.04 Patología Cardiovascular ; 3205.01 Cardiología ; 2411.03 Fisiología Cardiovascular
TIPO DE DOCUMENTO: article
Years before the first two-pore domain potassium channel (K2P) was cloned, certain ion channels had already been demonstrated to be present in the heart with characteristics and properties usually attributed to the TREK channels (a subfamily of K2P channels). K2P channels were later detected in cardiac tissue by RT-PCR, although the distribution of the different K2P subfamilies in the heart seems to depend on the species analyzed. In order to collect relevant information in this regard, we focus here on the TWIK, TASK and TREK cardiac channels, their putative roles in cardiac physiology and their implication in coronary pathologies. Most of the RNA expression data and electrophysiological recordings available to date support the presence of these different K2P subfamilies in distinct cardiac cells. Likewise, we show how these channels may be involved in certain pathologies, such as atrial fibrillation, long QT syndrome and Brugada syndrome.
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