Store-Operated Calcium Entry Channels: Potential Role in Cardiac Function

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Author(s): Diptiman D. Bose (Western New England University, USA)
Copyright: 2017
Pages: 20
Source title: Emerging Applications, Perspectives, and Discoveries in Cardiovascular Research
Source Author(s)/Editor(s): Ashim Malhotra (Pacific University, USA)and Shivani Soni (California State University, Fullerton, USA & Chapman University, USA & Alabama State University, USA)
DOI: 10.4018/978-1-5225-2092-4.ch004

Keywords: Cardiovascular Medicine / Medical Diagnosis and Practice / Medical Information Science Reference / Medicine & Healthcare

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Abstract

Store-operated Ca2+ entry (SOCE) channels mediate Ca2+ influx from the extracellular milieu into the cytosol to regulate a myriad of cellular functions. The Ca2+-release activated Ca2+ current has been well characterized in non-excitable cells such as immune cells. However, the role of SOCE proteins in cardiomyocytes and cardiac function has only been recently investigated. The localized endoplasmic reticulum protein, stromal interaction molecule (STIM) and plasma membrane Ca2+ channels, ORAI form the minimal functional unit of SOCE. The documentation of STIM and Orai expression in cardiomyocytes has raised questions regarding their role in cardiac function. Recent evidence supports the central role of STIM and Orai in gene transcription and, subsequent phenotypic changes associated with cardiac remodeling and hypertrophy. The purpose of this chapter is to provide an overview of our current understanding of SOCE proteins and, to explore their contributions to cardiovascular function and role in cardiac disorders.

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Store-Operated Calcium Entry Channels: Potential Role in Cardiac Function

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