m⁶A RNA Methylation-miRNA Crosstalk in Cardiovascular Remodeling

Area of Science:

• Cardiovascular Biology
• Epitranscriptomics
• Molecular Biology

Background:

• Cardiovascular remodeling is central to diseases like atherosclerosis and myocardial infarction.
• Regulation traditionally involves transcriptional, inflammatory, metabolic, mechanical, and signaling pathways.
• Epitranscriptomics, specifically m⁶A RNA methylation, emerges as a key post-transcriptional regulator.

Purpose of the Study:

• To review the crosstalk between m⁶A RNA methylation and miRNA pathways in cardiovascular remodeling.
• To highlight epitranscriptomic checkpoints and feedback circuits involving m⁶A and miRNAs.
• To discuss cell-type-specific roles and translational implications.

Main Methods:

• Literature review of current evidence on m⁶A-miRNA interactions in cardiovascular disease.
• Focus on regulatory mechanisms, including miRNA fate, feedback loops, and cell-specific programs.
• Exploration of analytical technologies and translational potential.

Main Results:

• m⁶A and miRNA pathways exhibit complex crosstalk in cardiovascular remodeling.
• Epitranscriptomic checkpoints and feedback circuits involving m⁶A machinery and miRNAs are identified.
• Cell-type-specific regulatory programs in endothelial cells, vascular smooth muscle cells, fibroblasts, and cardiomyocytes are discussed.

Conclusions:

• The m⁶A-miRNA axis represents a critical regulatory layer in cardiovascular remodeling.
• Understanding this crosstalk provides a systems-level view of RNA networks in cardiovascular disease.
• Further research is needed to clarify causal mechanisms, specificity, and translational feasibility.