Related Experiment Video
Updated: May 10, 2026

08:22
Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
Roles of miRNA in cardiovascular development and dysfunction
1Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
Current Medicinal Chemistry
|June 11, 2013
Summary
MicroRNAs (miRNAs) regulate cardiovascular development and disease. Modifying miRNA levels offers novel therapeutic strategies to restore cardiac function and counteract maladaptive remodeling.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- Genetics
Background:
- Non-coding RNAs, particularly microRNAs (miRNAs), are key regulators of cardiovascular system development and function.
- Dysregulation of miRNAs contributes to cardiovascular dysfunction through cell-type-specific mechanisms.
- Endogenous miRNA levels can be therapeutically modulated to restore cardiac function.
Purpose of the Study:
- To summarize current knowledge on miRNA functions in cardiac development and disease.
- To explore novel miRNA-based therapeutic strategies for cardiovascular dysfunction.
- To investigate the potential of exogenous miRNA modulation for treating maladaptive cardiac remodeling.
Main Methods:
- Review of existing literature on miRNA roles in cardiovascular biology.
- Analysis of miRNA-mediated post-transcriptional regulation in cardiac cells.
- Evaluation of therapeutic approaches involving miRNA overexpression or neutralization.
Main Results:
- miRNAs are critical for post-transcriptional regulation in the cardiovascular system.
- miRNA induction or repression directly influences cardiac events during dysfunction.
- Exogenous modulation of miRNAs shows promise for rescuing cardiac function.
Conclusions:
- miRNAs play a significant role in both normal cardiac development and disease pathogenesis.
- Targeting miRNAs presents a viable therapeutic avenue for cardiovascular disorders.
- Novel miRNA-based strategies can counteract maladaptive remodeling and improve cardiac outcomes.
Related Concept Videos
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
Regulation of the Cardiovascular System
The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
