Key result
Ablation of Plakoglobin (Jup) in mouse cardiomyocytes recapitulated human ARVC manifestations, including ventricular dilation, fibrosis, and spontaneous arrhythmias, with elevated TGF-beta signaling.
Why the study?
Does restrictive loss of plakoglobin in cardiomyocytes lead to arrhythmogenic cardiomyopathy?
Population
Jup mutant mice (ablating Plakoglobin/Jup in cardiomyocytes)
Design
Preclinical
Authors
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Supports TGF-β inhibition as a potential ARVC target; leaves open clinical translation and efficacy.
Does restrictive loss of plakoglobin in cardiomyocytes lead to arrhythmogenic cardiomyopathy?
Cardiomyocyte-specific loss of plakoglobin in mice recapitulates human ARVC and reveals elevated TGF-beta signaling as a potential pathogenic pathway.
Li et al. (2011) studied Arrhythmogenic right ventricular cardiomyopathy (ARVC). Ablation of Jup (Plakoglobin) in cardiomyocytes was evaluated. Ablation of Plakoglobin (Jup) in mouse cardiomyocytes recapitulated human ARVC manifestations, including ventricular dilation, fibrosis, and spontaneous arrhythmias, with elevated TGF-beta signaling.
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