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Published on: January 21, 2018
Emerging Mechanisms and Therapeutic Strategies in Dilated Cardiomyopathy
Linlin Wang1,2, Chen Chen1,2, Dao Wen Wang1,2,3,4
1Division of Cardiology, Departments of Internal Medicine and Genetic Diagnosis Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Insights
Dilated cardiomyopathy (DCM) is a complex heart condition influenced by genetics and environmental factors. New research explores clonal hematopoiesis and targeted therapies for better patient outcomes.
Area of Science:
- Cardiology
- Genetics
- Molecular Biology
Background:
- Dilated cardiomyopathy (DCM) is a major cause of heart failure and transplantation, with diverse causes.
- DCM is now understood as multifactorial, involving genetic predisposition and environmental "second hits."
- Clonal hematopoiesis of indeterminate potential is emerging as a key factor in inflammation-driven cardiac remodeling.
Purpose of the Study:
- To provide an updated overview of recent advances in DCM molecular mechanisms and diagnosis.
- To discuss the implications of these advances for current and emerging therapeutic strategies.
Main Methods:
- Review of recent scientific literature on DCM.
- Analysis of genetic and environmental factors contributing to DCM.
- Evaluation of novel therapeutic approaches for DCM.
Main Results:
- DCM pathogenesis involves complex interactions between genetic backgrounds and secondary modifiers like clonal hematopoiesis.
- These interactions amplify shared inflammatory pathways, leading to adverse cardiac remodeling.
- Mechanism-informed therapies are advancing personalized and stage-specific DCM management.
Conclusions:
- Understanding the multifactorial nature of DCM is crucial for diagnosis and treatment.
- Targeting specific molecular pathways offers new therapeutic avenues for DCM.
- Personalized and stage-specific management strategies are transforming DCM care.
Abstract:
Dilated cardiomyopathy (DCM) is a leading cause of heart failure and heart transplantation and is characterized by marked clinical and etiological heterogeneity. Recent studies have expanded the understanding of DCM from a predominantly monogenic disorder to a multifactorial disease shaped by genetic susceptibility and acquired or environmental "second hits". Beyond rare pathogenic variants, emerging evidence highlights the contribution of clonal hematopoiesis of indeterminate potential to inflammation-driven adverse cardiac remodeling and disease progression. These secondary modifiers interact with pre-existing genetic backgrounds to amplify shared downstream pathways. In parallel, advances in mechanism-informed therapies are increasingly translating these insights into clinical practice. Beyond guideline-directed medical and device therapy, emerging approaches targeting specific molecular pathways, including sarcomeric modulators, inflammatory signaling, and gene- or cell-based interventions, illustrate a shift toward more personalized and stage-specific management of DCM and heart failure. This review aims to provide an updated overview of recent advances in the molecular mechanisms and diagnosis underlying DCM and discuss their implications for current and emerging therapeutic strategies.
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