Targeting Calcium Regulators As Therapy for Heart Failure: Focus on the Sarcoplasmic Reticulum Ca-ATPase Pump

Overview

Journal Front Cardiovasc Med

Specialty Cardiology & Vascular Diseases

Date 2023 Aug 3

PMID 37534277

Authors

Changwon Kho

Affiliations

Soon will be listed here.

Abstract

Impaired myocardial Ca cycling is a critical contributor to the development of heart failure (HF), causing changes in the contractile function and structure remodeling of the heart. Within cardiomyocytes, the regulation of sarcoplasmic reticulum (SR) Ca storage and release is largely dependent on Ca handling proteins, such as the SR Ca ATPase (SERCA2a) pump. During the relaxation phase of the cardiac cycle (diastole), SERCA2a plays a critical role in transporting cytosolic Ca back to the SR, which helps to restore both cytosolic Ca levels to their resting state and SR Ca content for the next contraction. However, decreased SERCA2a expression and/or pump activity are key features in HF. As a result, there is a growing interest in developing therapeutic approaches to target SERCA2a. This review provides an overview of the regulatory mechanisms of the SERCA2a pump and explores potential strategies for SERCA2a-targeted therapy, which are being investigated in both preclinical and clinical studies.

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