Key result
Calsequestrin 2 dysfunction, whether from genetic mutations or acquired heart disease, contributes to arrhythmogenesis by impairing sarcoplasmic reticulum calcium buffering and regulating ryanodine receptors.
Design
Review
Authors
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Supports Casq2-targeted arrhythmia research; leaves open clinical translation in CPVT or acquired disease.
This review highlights that Casq2 dysfunction, primarily through protein loss or altered trafficking, leads to spontaneous diastolic calcium release and triggered arrhythmias in CPVT, providing a basis for targeted therapies.
Faggioni et al. (2011) conducted a review in Catecholaminergic polymorphic ventricular tachycardia (CPVT) and arrhythmias. Calsequestrin 2 (Casq2) mutations and dysfunction was evaluated. Calsequestrin 2 dysfunction, whether from genetic mutations or acquired heart disease, contributes to arrhythmogenesis by impairing sarcoplasmic reticulum calcium buffering and regulating ryanodine receptors.
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