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Updated: Jun 13, 2025

Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
MicroRNAs and therapeutic potentials in acute and chronic cardiac disease
1Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA, USA.
Abstract:
microRNAs (miRNAs) are small regulatory RNAs implicated in various cardiac disorders. In this review, the role of miRNAs is discussed in relation to acute myocardial infarction and chronic heart failure. In both settings, miRNAs are altered, contributing to injury and adverse remodeling. Notably, miRNA profiles differ between acute ischemic injury and progressive heart failure. Owing to miRNA variabilities between disease stages and delivery difficulties, translation of animal studies to the clinic remains challenging. The identification of distinct miRNA signatures could lead to the development of miRNA therapies tailored to different disease stages. Here, we summarize the current understanding of miRNAs in acute and chronic cardiac diseases, identify knowledge gaps and discuss progress in developing miRNA-based treatment strategies.
Insights
MicroRNAs (miRNAs) are key regulators in heart disease. This review details their role in acute myocardial infarction and chronic heart failure, highlighting distinct profiles and therapeutic potential.
Area of Science:
- Molecular Biology
- Cardiology
- Biochemistry
Background:
- MicroRNAs (miRNAs) are small regulatory RNAs involved in cellular processes.
- Cardiac disorders, including myocardial infarction and heart failure, are associated with altered miRNA expression.
- Understanding miRNA dysregulation is crucial for developing novel therapeutic strategies.
Purpose of the Study:
- To review the role of miRNAs in acute myocardial infarction and chronic heart failure.
- To discuss the differences in miRNA profiles between these cardiac conditions.
- To explore the challenges and progress in miRNA-based therapeutic strategies for heart diseases.
Main Methods:
- Literature review of studies investigating miRNA involvement in cardiac disorders.
- Analysis of miRNA expression patterns in acute myocardial infarction and chronic heart failure.
- Evaluation of current miRNA-based treatment strategies and their clinical translation.
Main Results:
- miRNAs are significantly altered in both acute myocardial infarction and chronic heart failure, contributing to cardiac injury and remodeling.
- Distinct miRNA signatures are observed between acute ischemic injury and progressive heart failure.
- Variability in miRNA profiles and challenges in delivery hinder the translation of preclinical findings to clinical applications.
Conclusions:
- Distinct miRNA signatures offer potential for stage-specific therapeutic interventions in cardiac diseases.
- Further research is needed to overcome challenges in miRNA delivery and clinical translation.
- Targeting miRNAs holds promise for developing novel treatments for acute and chronic heart conditions.
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