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Updated: Feb 17, 2026

Visualization of Cell Cycle Variations and Determination of Nucleation in Postnatal Cardiomyocytes
Published on: February 24, 2017
Noncoding RNA and Cardiomyocyte Proliferation
Shuang Qu1, Chunyu Zeng1, Wei Eric Wang1
1Department of Cardiology, Chongqing Institute of Cardiology & Chongqing Cardiovascular Clinical Research Center, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
Abstract:
It is acknowledged that postnatal mammalian cardiomyocytes (CMs) turn over with a very limited efficacy in both physiological and pathological conditions. Recent studies showed that those newly formed CMs are derived from preexisting CMs. Thus, stimulating CM proliferation becomes a promising strategy for inducing cardiac regeneration. Noncoding RNAs were found differently expressed in CMs with different proliferation potential. Moreover, manipulation of noncoding RNAs, in particular microRNAs, was proved to promote or suppress CM proliferation, indicating that noncoding RNAs are involved in the underlying mechanism of CM proliferation. This review mainly summarizes the roles of noncoding RNAs, as a class of influential factors, in the regulation of CM proliferation.
Insights
Stimulating cardiomyocyte proliferation is key for cardiac regeneration. This review highlights how noncoding RNAs, especially microRNAs, regulate cardiomyocyte proliferation and offers potential therapeutic targets for heart repair.
Area of Science:
- Cardiovascular Biology
- Molecular Biology
- Regenerative Medicine
Background:
- Postnatal mammalian cardiomyocytes (CMs) exhibit limited turnover, hindering cardiac repair.
- Newly formed CMs originate from pre-existing ones, emphasizing the need to stimulate CM proliferation for regeneration.
- Noncoding RNAs show differential expression in CMs with varying proliferative capacities.
Purpose of the Study:
- To review the regulatory roles of noncoding RNAs in cardiomyocyte proliferation.
- To explore the potential of manipulating noncoding RNAs for cardiac regeneration strategies.
Main Methods:
- Literature review of studies investigating noncoding RNAs and cardiomyocyte proliferation.
- Analysis of research on microRNA manipulation impacting CM proliferation.
- Synthesis of findings on the mechanisms underlying noncoding RNA-mediated CM regulation.
Main Results:
- Noncoding RNAs are differentially expressed in CMs based on proliferation potential.
- MicroRNA manipulation can either promote or inhibit cardiomyocyte proliferation.
- Noncoding RNAs are integral to the molecular mechanisms governing CM proliferation.
Conclusions:
- Noncoding RNAs are critical regulators of cardiomyocyte proliferation.
- Targeting noncoding RNAs presents a promising avenue for enhancing cardiac regeneration.
- Understanding these regulatory roles is essential for developing novel therapeutic strategies for heart disease.
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