LncRNA H19 promotes the differentiation of bovine skeletal muscle satellite cells by suppressing Sirt1/FoxO1

文献类型： 外文期刊

第一作者： Ji, Shengyue

作者： Ji, Shengyue;Li, Weili;Yi, Bao;Li, Hengxin;Zhang, Hongfu;Xu, Xiaochun;Ma, Wenping

作者机构：

关键词： H19 lncRNA;Myoblast differentiation;Sirt1;FoxO1

期刊名称：CELLULAR & MOLECULAR BIOLOGY LETTERS （ 影响因子：5.787； 五年影响因子：4.833 ）

ISSN： 1425-8153

年卷期： 2017 年 22 卷

页码：

收录情况： SCI

摘要： Background: H19 is a well-characterized Long noncoding RNA (lncRNA) that has been proven to promote myoblast differentiation in humans and mice. However, its mechanism of action is still not fully interpreted. Methods: Using RT-qPCR, we examined H19 RNA levels in various tissues from 1-week, 1-month, 6-month and 36-month old male cattle (i.e., newborn, infant, young and adult). The protein and mRNA levels of MyoG, MyHC, Sirt1 and FoxO1 in the satellite and C2C12 cells with an H19 silencing or overexpression vector were respectively detected using western blot and real-time qPCR. Results: H19 was highly expressed in skeletal muscle at all the studied ages. High expression of H19 was required for the differentiation of bovine satellite cells. Knockdown of H19 caused a remarkable increase in the myoblast-inhibitory genes Sirt1/FoxO1, suggesting that H19 suppresses Sirt1/FoxO1 expression during myogenesis. Western blotting analysis of co-transfection of Sirt1 or FoxO1 expression vectors with pcDNA-H19 indicated that Sirt1/FoxO1 overexpression neutralized the promotion of myoblast differentiation through transfection of pcDNA-H19. Conclusion: H19 promoted the differentiation of bovine skeletal muscle satellite cells by suppressing Sirt1/FoxO1.

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