Extracellular vesicles and Duchenne muscular dystrophy pathology: Modulators of disease progression
Laura Yedigaryan1, Maurilio Sampaolesi1,2
1Translational Cardiomyology Laboratory, Stem Cell and Developmental Biology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium.
Abstract:
Duchenne muscular dystrophy (DMD) is a devastating disorder and is considered to be one of the worst forms of inherited muscular dystrophies. DMD occurs as a result of mutations in the dystrophin gene, leading to progressive muscle fiber degradation and weakness. Although DMD pathology has been studied for many years, there are aspects of disease pathogenesis and progression that have not been thoroughly explored yet. The underlying issue with this is that the development of further effective therapies becomes stalled. It is becoming more evident that extracellular vesicles (EVs) may contribute to DMD pathology. EVs are vesicles secreted by cells that exert a multitude of effects via their lipid, protein, and RNA cargo. EV cargo (especially microRNAs) is also said to be a good biomarker for identifying the status of specific pathological processes that occur in dystrophic muscle, such as fibrosis, degeneration, inflammation, adipogenic degeneration, and dilated cardiomyopathy. On the other hand, EVs are becoming more prominent vehicles for custom-engineered cargos. In this review, we will discuss the possible contribution of EVs to DMD pathology, their potential use as biomarkers, and the therapeutic efficacy of both, EV secretion inhibition and custom-engineered cargo delivery.
Insights
Extracellular vesicles (EVs) may play a role in Duchenne muscular dystrophy (DMD) progression. This review explores their contribution to DMD pathology, potential as biomarkers, and therapeutic applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Duchenne muscular dystrophy (DMD) is a severe inherited muscle-wasting disorder caused by dystrophin gene mutations.
- Despite extensive research, key aspects of DMD pathogenesis and progression remain underexplored, hindering therapeutic development.
Purpose of the Study:
- To review the potential role of extracellular vesicles (EVs) in DMD pathology.
- To discuss the utility of EV cargo as biomarkers for DMD-related conditions.
- To explore therapeutic strategies involving EV modulation and engineered cargo delivery.
Main Methods:
- Literature review of studies investigating extracellular vesicles in muscular dystrophy.
- Analysis of EV cargo, including microRNAs, in relation to DMD hallmarks.
- Evaluation of therapeutic approaches targeting EV function.
Main Results:
- Extracellular vesicles (EVs) are implicated in contributing to DMD pathology through their secreted cargo.
- EV-derived microRNAs show promise as biomarkers for diagnosing and monitoring DMD-associated fibrosis, inflammation, and cardiac complications.
- EVs offer potential as vehicles for targeted therapeutic cargo delivery.
Conclusions:
- Extracellular vesicles represent a significant factor in Duchenne muscular dystrophy pathogenesis.
- EVs hold potential as diagnostic biomarkers and therapeutic delivery systems for DMD.
- Further research into EV biology is crucial for advancing DMD treatment strategies.
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