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Updated: Mar 28, 2026

Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
Stress response factors as hub-regulators of microRNA biogenesis: implication to the diseased heart
Veronika Gurianova1, Dmytro Stroy1, Rachele Ciccocioppo2
1Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kiev, Ukraine.
Abstract:
MicroRNAs (miRNAs) are important regulators of heart function and then an intriguing therapeutic target for plenty of diseases. The problem raised is that many data in this area are contradictory, thus limiting the use of miRNA-based therapy. The goal of this review is to describe the hub-mechanisms regulating the biogenesis and function of miRNAs, which could help in clarifying some contradictions in the miRNA world. With this scope, we analyse an array of factors, including several known agents of stress response, mediators of epigenetic changes, regulators of alternative splicing, RNA editing, protein synthesis and folding and proteolytic systems. All these factors are important in cardiovascular function and most of them regulate miRNA biogenesis, but their influence on miRNAs was shown for non-cardiac cells or some specific cardiac pathologies. Finally, we consider that studying the stress response factors, which are upstream regulators of miRNA biogenesis, in the diseased heart could help in (1) explaining some contradictions concerning miRNAs in heart pathology, (2) making the role of miRNAs in pathogenesis of cardiovascular disease more clear, and therefore, (3) getting powerful targets for its molecular therapy.
Insights
MicroRNAs regulate heart function but contradictory data limits their therapeutic use. Understanding upstream regulators, like stress response factors, in the diseased heart can clarify their role and identify new cardiovascular disease therapies.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- Epigenetics
Background:
- MicroRNAs (miRNAs) are crucial regulators of cardiac function.
- Existing data on miRNAs in cardiovascular disease present contradictions, hindering therapeutic development.
- A deeper understanding of miRNA regulatory mechanisms is needed.
Purpose of the Study:
- To elucidate hub-mechanisms governing microRNA biogenesis and function in the cardiovascular system.
- To address and clarify contradictory findings in the field of miRNA research.
- To identify potential therapeutic targets for cardiovascular diseases.
Main Methods:
- Comprehensive review of literature on factors influencing miRNA biogenesis and function.
- Analysis of stress response agents, epigenetic modifiers, splicing regulators, RNA editing, and protein homeostasis factors.
- Examination of these factors' roles in cardiovascular function and miRNA regulation, particularly in cardiac pathologies.
Main Results:
- Multiple factors, including stress response and epigenetic mediators, influence miRNA biogenesis and function.
- The impact of these factors on miRNAs has been studied primarily in non-cardiac cells or specific cardiac conditions.
- Identifying upstream regulators of miRNA biogenesis in diseased hearts is key.
Conclusions:
- Studying stress response factors upstream of miRNA biogenesis in diseased hearts can resolve contradictions.
- This approach will clarify the role of miRNAs in cardiovascular disease pathogenesis.
- It will facilitate the development of novel molecular therapeutic targets for cardiovascular diseases.
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