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Long non-coding RNA Irm enhances myogenic differentiation by interacting with MEF2D.
Yutong Sui1, Yu Han2, Xingyu Zhao2
1State Key Laboratory for Molecular Biology of Special Economic Animals, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun, 130112, China.
Cell Death & Disease
|February 23, 2019
Summary
Long non-coding RNA Irm enhances muscle cell differentiation and regeneration by interacting with MEF2D. Inhibition of Irm impairs muscle development and repair, highlighting its crucial role in myogenesis.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- Long non-coding RNAs (lncRNAs) are increasingly recognized as key regulators of cellular processes.
- Myogenic differentiation, the process of muscle cell development, is crucial for muscle function and repair.
Purpose of the Study:
- To investigate the role of lncRNA Irm in myogenic differentiation and muscle regeneration.
- To elucidate the molecular mechanism by which Irm regulates myogenesis.
Main Methods:
- In vitro studies involving overexpression and inhibition of lncRNA Irm in muscle cells.
- In vivo studies assessing the impact of Irm inhibition on muscle regeneration after injury.
- Mechanistic studies to identify binding partners and regulatory targets of Irm.
Main Results:
- lncRNA Irm expression is upregulated during myogenesis.
- Overexpression of Irm enhances myogenic differentiation in vitro.
- Inhibition of Irm impairs myogenic differentiation in vitro and blocks muscle regeneration in vivo.
- Irm directly binds to MEF2D, facilitating the assembly of MyoD/MEF2D complex on target gene regulatory elements.
Conclusions:
- lncRNA Irm is a novel and essential regulator of myogenesis.
- Irm promotes muscle cell differentiation and regeneration by interacting with MEF2D and modulating myogenic gene expression.
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