Targeting mitochondrial microRNAs in cardiovascular pathologies: A new frontier in precision cardiology

Area of Science:

• Mitochondrial biology
• Molecular cardiology
• Biomedical science

Background:

• Cardiovascular diseases (CVDs), particularly myocardial infarction (MI), are a leading global cause of mortality.
• Despite advances, MI remains incurable, highlighting the need for novel therapeutic strategies.
• Mitochondria are crucial in MI pathogenesis and treatment, with mitochondrial microRNAs (mito-miRs) emerging as significant regulators.

Purpose of the Study:

• To explore the role of mito-miRs in cardiovascular disease, specifically myocardial infarction.
• To elucidate the mechanisms by which mito-miRs regulate mitochondrial function and cell death pathways.
• To identify potential therapeutic applications of mito-miRs in treating MI.

Main Methods:

• Review of current literature on mito-miR function in cardiovascular disease.
• Analysis of emerging evidence on mito-miR regulation of mitochondrial metabolism, dynamics, and cell death.
• Investigation into mito-miR translocation and action within cardiac cells.

Main Results:

• Mito-miRs are implicated in regulating mitochondrial metabolism, reactive oxygen species (ROS) production, bioenergetics, and biogenesis.
• Mito-miRs influence programmed cell death pathways including apoptosis, necrosis, ferroptosis, and pyroptosis.
• Specific mito-miRs target key cardiac cell types like cardiomyocytes, endothelial cells, and fibroblasts.

Conclusions:

• Deciphering mito-miR mechanisms is crucial for developing targeted miRNA-based therapeutics for MI.
• Integrating mito-miRs with stem cell therapy and nanoparticle delivery systems may enhance treatment efficacy for cardiovascular diseases.