Unbalance Between Sarcoplasmic Reticulum Ca2+ Uptake and Release: A First Step Toward Ca2+ Triggered Arrhythmias and Cardiac Damage

被引:18
|
作者
Federico, Marilen [1 ]
Valverde, Carlos A. [1 ]
Mattiazzi, Alicia [1 ]
Palomeque, Julieta [1 ,2 ]
机构
[1] Natl Univ La Plata, CONICET, Ctr Invest Cardiovasc Dr Horacio E Cingolani, CCT La Plata,Fac Cs Med, La Plata, Argentina
[2] Univ Abierta Interamer, Ctr Altos Estudios Ciencias Humanas & Salud, Buenos Aires, DF, Argentina
来源
FRONTIERS IN PHYSIOLOGY | 2020年 / 10卷
关键词
sarcoplasmic reticulum Ca2+-ATPase; ryanodine receptor 2; arrhythimas; phospholamban; apoptosis; diabetic myocardiopathy; isquemia-reperfusion; RYANODINE RECEPTOR PHOSPHORYLATION; PROTEIN-KINASE-II; MITOCHONDRIAL PERMEABILITY TRANSITION; BETA-ADRENERGIC STIMULATION; AFFECT CALCIUM SPARKS; INTRACELLULAR CA2+; HEART-FAILURE; PHOSPHOLAMBAN PHOSPHORYLATION; PKA PHOSPHORYLATION; INHIBITION PROTECTS;
D O I
10.3389/fphys.2019.01630
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
The present review focusses on the regulation and interplay of cardiac SR Ca2+ handling proteins involved in SR Ca2+ uptake and release, i.e., SERCa2/PLN and RyR2. Both RyR2 and SERCA2a/PLN are highly regulated by post-translational modifications and/or different partners' proteins. These control mechanisms guarantee a precise equilibrium between SR Ca2+ reuptake and release. The review then discusses how disruption of this balance alters SR Ca2+ handling and may constitute a first step toward cardiac damage and malignant arrhythmias. In the last part of the review, this concept is exemplified in different cardiac diseases, like prediabetic and diabetic cardiomyopathy, digitalis intoxication and ischemia-reperfusion injury.
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页数:22
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