Advances in MicroRNA-Based Therapies for Cardiac Repair: Emerging Strategies for Treating Myocardial Infarction

Area of Science:

• Cardiovascular Biology
• Molecular Medicine
• Regenerative Medicine

Background:

• Myocardial infarction (MI) remains a leading cause of global mortality, necessitating innovative treatments for cardiac tissue repair.
• MicroRNAs (miRNAs) are critical regulators involved in cardiac development, MI progression, and post-MI cardiac repair processes.

Purpose of the Study:

• To elucidate the multifaceted roles of miRNAs in MI pathogenesis and cardiac regeneration.
• To review miRNA regulation in MI and their therapeutic potential for cardiac recovery.
• To summarize advancements in miRNA-based therapeutics and cardiomyocyte cell therapy for MI.

Main Methods:

• Comprehensive literature review focusing on miRNA functions in myocardial infarction.
• Analysis of miRNA involvement in key cardiac repair stages: inflammation, apoptosis, angiogenesis, and fibrosis.
• Evaluation of current and emerging miRNA-based therapeutic strategies.

Main Results:

• miRNAs significantly influence inflammation, apoptosis, angiogenesis, and fibrosis following MI.
• Specific miRNAs show potential as biomarkers and therapeutic targets for assessing cardiac recovery.
• miRNA-based therapies and in vitro cardiomyocyte growth are promising for cell-based MI treatment.

Conclusions:

• Understanding miRNA functions in cardiac repair post-MI is crucial for developing effective therapeutic strategies.
• Targeting miRNAs offers a promising avenue for improving patient outcomes and mitigating heart failure.
• Advancements in miRNA therapeutics hold significant potential for regenerative cardiology.