[THE EFFECT OF PLAKOPHILIN-2 GENE MUTATIONS ON ACTIVITY OF THE CANONICAL Wnt SIGNALING PATHWAY].

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Plakophilin-2 is a desmosomal protein encoded by PKP2 gene. Desmosomal proteins are usually considered as structural proteins with the main function of maintaining intercellular interactions. Genetic studies revealed that mutations in desmosomal genes could lead to arrhythmogenic right ventricular cardiomyopathy, heart disease characterized by substitution of cardiomyocytes by adipose and fibrotic tissue predominantly in right ventricle. Wnt signaling pathway is one of the signal transduction pathways which could be involved in the formation of the pathology. The purpose of this study was to investigate Wnt activity changes caused by PKP2 mutations during adipogenic and cardiomyogenic differentiation. We used multipotent mesenchymal stromal cells and iPS cells generated from patient carrying PKP2 gene mutation. We show that Wnt activity is lower in the cells with mutant PKP2. This data indicate a possible signaling role of plakophilin-2 by regulating Wnt activity.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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