EV-Encapsulated Mitochondrial miRNAs: Enhancing Cardiomyocyte Bioenergetics

Area of Science:

• Cardiovascular Biology
• Mitochondrial Medicine
• Regenerative Medicine

Background:

• Mitochondrial dysfunction is central to cardiac pathologies.
• Restoring mitochondrial health is a key therapeutic challenge.
• Extracellular vesicles (EVs) are natural nanocarriers for biomolecules like mitochondrial microRNAs (mito-miRs).

Purpose of the Study:

• To review the potential of EV-encapsulated mito-miRs for mitochondrial therapy in cardiovascular diseases.
• To explore how mito-miRs delivered via EVs can restore mitochondrial function, ATP synthesis, and redox balance.
• To provide a framework for therapeutic applications in conditions like heart failure and cardiomyopathy.

Main Methods:

• Integrative narrative synthesis of peer-reviewed literature from major biomedical databases.
• Focus on mechanistic studies linking EV-mito-miR delivery to cardiomyocyte mitochondrial function.
• Integration of concepts from stem cell biology, RNA epigenetics, systems cardiology, and bioengineering.

Main Results:

• EVs can deliver mito-miRs to target cells, influencing mitochondrial bioenergetics.
• Mito-miR delivery via EVs can potentially restore transcriptional and metabolic programs.
• This approach may enhance cellular energy output and mitigate oxidative stress.

Conclusions:

• EV-mediated mito-miR delivery represents a promising strategy for non-cellular mitochondrial therapy in cardiovascular diseases.
• This approach offers a pathway for targeted, customizable, and scalable bioenergetic interventions.
• Further research can advance cardiovascular regeneration through harmonizing multi-omic signaling, vesicle engineering, and mitochondrial medicine.