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Published on: June 16, 2020
Cell models of arrhythmogenic cardiomyopathy: advances and opportunities
Elena Sommariva1, Ilaria Stadiotti2, Gianluca L Perrucci2,3
1Vascular Biology and Regenerative Medicine Unit, Centro Cardiologico Monzino-IRCCS, via Parea 4, Milan 20138, Italy esommariva@ccfm.it.
Insights
Arrhythmogenic cardiomyopathy, a genetic heart disease, involves fibrous fatty deposits and arrhythmias. In vitro models are crucial for understanding its mechanisms and developing new therapies.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Arrhythmogenic cardiomyopathy (ACM) is a rare, inherited heart muscle disease.
- It's characterized by ventricular myocardium replacement with fibrous fatty deposits, leading to arrhythmias and sudden death.
- Mutations in desmosomal genes are a primary cause, often inherited in an autosomal dominant pattern.
Purpose of the Study:
- To review current knowledge on arrhythmogenic cardiomyopathy pathogenesis.
- To focus on the role of in vitro models in understanding ACM.
- To assess the potential of cell platforms for future research and therapeutic screening.
Main Methods:
- Literature review of arrhythmogenic cardiomyopathy pathogenesis.
- Analysis of in vitro studies and cell models used in ACM research.
- Evaluation of established and innovative cell platforms for disease elucidation and drug screening.
Main Results:
- In vitro studies have significantly advanced the understanding of ACM's genetic, cellular, signaling, and molecular defects.
- Various in vitro models have been instrumental in uncovering pathogenic mechanisms.
- Cell platforms offer promise for discovering unknown aspects of ACM and screening therapeutics.
Conclusions:
- In vitro models are essential tools for studying arrhythmogenic cardiomyopathy.
- Continued development and application of cell platforms will drive basic research and therapeutic advancements for ACM.
- These models highlight past discoveries and future research directions for this genetic heart disease.
Abstract:
Arrhythmogenic cardiomyopathy is a rare genetic disease that is mostly inherited as an autosomal dominant trait. It is associated predominantly with mutations in desmosomal genes and is characterized by the replacement of the ventricular myocardium with fibrous fatty deposits, arrhythmias and a high risk of sudden death. In vitro studies have contributed to our understanding of the pathogenic mechanisms underlying this disease, including its genetic determinants, as well as its cellular, signaling and molecular defects. Here, we review what is currently known about the pathogenesis of arrhythmogenic cardiomyopathy and focus on the in vitro models that have advanced our understanding of the disease. Finally, we assess the potential of established and innovative cell platforms for elucidating unknown aspects of this disease, and for screening new potential therapeutic agents. This appraisal of in vitro models of arrhythmogenic cardiomyopathy highlights the discoveries made about this disease and the uses of these models for future basic and therapeutic research.
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