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Non Coding RNAs as Regulators of Wnt/β-Catenin and Hippo Pathways in Arrhythmogenic Cardiomyopathy
Marina Piquer-Gil1, Sofía Domenech-Dauder1, Marta Sepúlveda-Gómez1
1Unit of Inherited Cardiomyopathies and Sudden Death (CaFaMuSMe), Health Research Institute La Fe, 46026 Valencia, Spain.
Insights
Arrhythmogenic cardiomyopathy (ACM) is a desmosomal disease linked to Wnt/β-catenin and Hippo pathway issues. Non-coding RNAs (ncRNAs), particularly competing endogenous RNAs (ceRNAs), may offer new therapeutic targets by modulating these pathways in ACM.
Area of Science:
- Cardiovascular Genetics
- Molecular Biology
- RNA Biology
Background:
- Arrhythmogenic cardiomyopathy (ACM) is an inherited condition characterized by fibrofatty myocardial replacement and inflammation.
- ACM is often termed a desmosomal disease due to mutations in desmosomal protein genes.
- Perturbed Wnt/β-catenin and Hippo pathways are implicated in ACM pathogenesis, promoting pro-adipogenic and pro-fibrotic gene expression.
Purpose of the Study:
- To investigate the role of non-coding RNAs (ncRNAs) in modulating Wnt/β-catenin and Hippo pathways in ACM.
- To explore ncRNAs as potential therapeutic targets for ACM progression.
Main Methods:
- Review of current literature on ACM, desmosomal genes, Wnt/β-catenin and Hippo pathways.
- Analysis of the potential roles of various ncRNA types, including competing endogenous RNAs (ceRNAs).
- Exploration of cancer research findings on ceRNAs in Wnt/β-catenin and Hippo pathway modulation.
Main Results:
- The study highlights the intricate connection between desmosomal dysfunction, Wnt/β-catenin, and Hippo pathway dysregulation in ACM.
- ncRNAs, especially ceRNAs, are identified as key regulators capable of fine-tuning gene expression.
- ceRNAs show promise in coordinating actions within the Wnt/β-catenin and Hippo signaling networks.
Conclusions:
- ncRNAs represent a significant area for understanding ACM molecular mechanisms.
- ceRNAs offer potential actionable targets for therapeutic strategies in arrhythmogenic cardiomyopathy.
- Further research into ncRNA-mediated regulation of key pathways is crucial for advancing ACM treatment.
Abstract:
Arrhythmogenic cardiomyopathy (ACM) is an inherited cardiomyopathy histologically characterized by the replacement of myocardium by fibrofatty infiltration, cardiomyocyte loss, and inflammation. ACM has been defined as a desmosomal disease because most of the mutations causing the disease are located in genes encoding desmosomal proteins. Interestingly, the instable structures of these intercellular junctions in this disease are closely related to a perturbed Wnt/β-catenin pathway. Imbalance in the Wnt/β-catenin signaling and also in the crosslinked Hippo pathway leads to the transcription of proadipogenic and profibrotic genes. Aiming to shed light on the mechanisms by which Wnt/β-catenin and Hippo pathways modulate the progression of the pathological ACM phenotype, the study of non-coding RNAs (ncRNAs) has emerged as a potential source of actionable targets. ncRNAs comprise a wide range of RNA species (short, large, linear, circular) which are able to finely tune gene expression and determine the final phenotype. Some share recognition sites, thus referred to as competing endogenous RNAs (ceRNAs), and ensure a coordinating action. Recent cancer research studies regarding the key role of ceRNAs in Wnt/β-catenin and Hippo pathways modulation pave the way to better understanding the molecular mechanisms underlying ACM.
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