Long non-coding RNA Linc-RAM enhances myogenic differentiation by interacting with MyoD
收藏干细胞与再生医学数据中心2022-02-20 更新2024-03-06 收录
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Long non-coding RNAs are important regulators of diverse biological prosesses. Here, we report on functional identification and characterization of a novel long intergenic noncoding RNA with MyoD-regulated and skeletal muscle-restricted expression that promotes the activation of the myogenic program, and is therefore termed Linc-RAM (Linc-RNA Activator of Myogenesis). Linc-RAM is transcribed from an intergenic region of myogenic cells and its expression is upregulated during myogenesis. Notably, in vivo functional studies show that Linc-RAM knockout mice display impaired muscle regeneration due to differentiation defect of satellite cells. Mechanistically, Linc-RAM regulates expression of myogenic genes by directly binding MyoD, which in turn promotes the assembly of the MyoD-Baf60c-Brg1 complex on the regulatory elements of target genes. Collectively, our findings reveal the functional role and molecular mechanism of a lineage-specific Linc-RAM as a regulatory lncRNA required for tissues-specific chromatin remodeling and gene expression.
提供机构：
Peking University
创建时间：
2022-02-20
