Key result
A method was described for the isolation, expansion, and adipogenic differentiation of cardiac mesenchymal stromal cells from endomyocardial biopsies of patients with arrhythmogenic cardiomyopathy.
Provides a detailed methodology for isolating and characterizing cardiac mesenchymal stromal cells from patients with arrhythmogenic cardiomyopathy to serve as an in vitro disease model.
Enables patient-specific in vitro models of arrhythmogenic cardiomyopathy; leaves open translation to mechanisms or therapies.
A normal adult heart is composed of several different cell types, among which cardiac mesenchymal stromal cells represent an abundant population. The isolation of these cells offers the possibility of studying their involvement in cardiac diseases, and, in addition, provides a useful primary cell model to investigate biological mechanisms. Here, the method for the isolation of C-MSC from arrhythmogenic cardiomyopathy patients' bioptic samples is described. The endomyocardial biopsy sampling is guided in the right ventricular areas adjacent to the scar visualized by electro-anatomical mapping. The digestion of the biopsies in collagenase and their plating on a plastic dish in culture medium to allow C-MSC growth is described. The isolated cells can be expanded in culture for several passages. To confirm their mesenchymal phenotype, the description of immuno-phenotypical characterization is provided. C-MSC are able to differentiate into several cell types like adipocytes, chondrocytes, and osteoblasts: in the context of ACM, characterized by adipocyte deposits in patients' hearts, the protocols for the adipogenic differentiation of C-MSC and the characterization of lipid droplet accumulation are described.
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Pilato et al. (2018) studied Arrhythmogenic Cardiomyopathy. Isolation and characterization of cardiac mesenchymal stromal cells was evaluated on Method description for C-MSC isolation, expansion, and adipogenic differentiation. A method was described for the isolation, expansion, and adipogenic differentiation of cardiac mesenchymal stromal cells from endomyocardial biopsies of patients with arrhythmogenic cardiomyopathy.
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