The Hidden Regulators: MicroRNAs in Pediatric Heart Development and Disease

Area of Science:

• Cardiovascular Biology
• Molecular Genetics
• Pediatric Cardiology

Background:

• MicroRNAs (miRNAs) are crucial non-coding RNA molecules regulating gene expression post-transcriptionally.
• They play a significant role in the intricate regulatory networks governing cardiac development and function.
• Dysregulation of miRNAs is implicated in various cardiovascular pathologies.

Purpose of the Study:

• To review the biogenesis and function of miRNAs in normal heart development.
• To elucidate the impact of miRNAs on the pathogenesis of congenital and acquired pediatric heart diseases.
• To explore the clinical utility of miRNAs as biomarkers and therapeutic agents in pediatric cardiology.

Main Methods:

• This narrative review synthesizes existing literature on miRNA research in pediatric cardiology.
• Key findings from studies on miRNA biogenesis, function, and disease association are discussed.
• Emphasis is placed on clinical implications and future research directions.

Main Results:

• Specific miRNAs are vital for normal cardiac morphogenesis and function.
• Altered miRNA expression patterns are associated with congenital heart defects (e.g., HLHS, TOF, BAV) and acquired conditions.
• Circulating and tissue miRNAs show promise as non-invasive biomarkers for diagnosis and monitoring.

Conclusions:

• MicroRNAs are critical regulators in pediatric heart development and disease.
• miRNA signatures offer potential for early diagnosis and personalized treatment strategies.
• Further research is essential to overcome challenges and translate miRNA-based therapies into clinical practice for pediatric cardiology.