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Exploring the role of TRPM4 in calcium-dependent triggered activity and cardiac arrhythmias
The Journal of Physiology ( IF 4.7 ) Pub Date : 2023-05-02 , DOI: 10.1113/jp283831
Andy Pironet 1 , Frone Vandewiele 1 , Rudi Vennekens 1
The Journal of Physiology ( IF 4.7 ) Pub Date : 2023-05-02 , DOI: 10.1113/jp283831
Andy Pironet 1 , Frone Vandewiele 1 , Rudi Vennekens 1
Affiliation
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Cardiac arrhythmias pose a major threat to a patient's health, yet prove to be often difficult to predict, prevent and treat. A key mechanism in the occurrence of arrhythmias is disturbed Ca2+ homeostasis in cardiac muscle cells. As a Ca2+-activated non-selective cation channel, TRPM4 has been linked to Ca2+-induced arrhythmias, potentially contributing to translating an increase in intracellular Ca2+ concentration into membrane depolarisation and an increase in cellular excitability. Indeed, evidence from genetically modified mice, analysis of mutations in human patients and the identification of a TRPM4 blocking compound that can be applied in vivo further underscore this hypothesis. Here, we provide an overview of these data in the context of our current understanding of Ca2+-dependent arrhythmias.
中文翻译:
探索 TRPM4 在钙依赖性触发活动和心律失常中的作用
心律失常对患者的健康构成重大威胁,但事实证明往往难以预测、预防和治疗。心律失常发生的一个关键机制是心肌细胞中Ca 2+稳态的紊乱。作为 Ca 2+激活的非选择性阳离子通道,TRPM4 与 Ca 2+诱导的心律失常有关,可能有助于将细胞内 Ca 2+浓度的增加转化为膜去极化和细胞兴奋性的增加。事实上,来自转基因小鼠的证据、对人类患者突变的分析以及可在体内应用的 TRPM4 阻断化合物的鉴定进一步强调了这一假设。在这里,我们在目前对 Ca 2+依赖性心律失常的理解的背景下概述了这些数据。
更新日期:2023-05-02
中文翻译:

探索 TRPM4 在钙依赖性触发活动和心律失常中的作用
心律失常对患者的健康构成重大威胁,但事实证明往往难以预测、预防和治疗。心律失常发生的一个关键机制是心肌细胞中Ca 2+稳态的紊乱。作为 Ca 2+激活的非选择性阳离子通道,TRPM4 与 Ca 2+诱导的心律失常有关,可能有助于将细胞内 Ca 2+浓度的增加转化为膜去极化和细胞兴奋性的增加。事实上,来自转基因小鼠的证据、对人类患者突变的分析以及可在体内应用的 TRPM4 阻断化合物的鉴定进一步强调了这一假设。在这里,我们在目前对 Ca 2+依赖性心律失常的理解的背景下概述了这些数据。