MicroRNAs in atherosclerosis

Area of Science:

• Cardiovascular Biology
• Molecular Medicine
• Genetics

Background:

• Micro-ribonucleic acids (miRNAs) are small non-coding RNAs regulating gene expression.
• MiRNAs play critical roles in vascular physiology and pathology.
• Atherosclerosis is a major global health concern, driving significant morbidity and mortality.

Purpose of the Study:

• To review the current understanding of miRNAs involved in atherosclerosis.
• To highlight the physio-pathological roles of miRNAs in disease development and progression.
• To discuss the clinical potential and challenges of miRNA-based diagnostics and therapeutics for atherosclerosis.

Main Methods:

• Literature review of studies investigating miRNA involvement in atherosclerosis.
• Analysis of miRNA functions in key cellular processes relevant to atherosclerosis.
• Examination of clinical data on miRNA utility in arterial disease diagnosis and prognosis.

Main Results:

• MiRNAs are implicated in atherosclerosis through regulation of cell phenotype, response to stress, senescence, and lipid metabolism.
• Specific miRNAs influence macrophage behavior, inflammatory responses (e.g., Toll-like receptor 4), and plaque development.
• Early clinical studies suggest miRNAs can differentiate patients with arterial disease and predict cardiac events.

Conclusions:

• MiRNAs are crucial regulators across all stages of atherosclerosis.
• MiRNA-based approaches hold promise for novel diagnostic, prognostic, and therapeutic strategies for atherosclerosis.
• Challenges remain in understanding miRNA targeting, stability, and effective delivery for clinical application.