Transgenic overexpression of miR-133a in skeletal muscle.
Transgenic overexpression of miR-133a in skeletal muscle.
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DOI:
10.1186/1471-2474-12-115
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发表时间:
2011-05-26
影响因子:
2.3
通讯作者:
Wang DZ
中科院分区:
文献类型:
--
作者:
Deng Z;Chen JF;Wang DZ
MicroRNAs (miRNAs) are a class of non-coding regulatory RNAs of ~22 nucleotides in length. miRNAs regulate gene expression post-transcriptionally, primarily by associating with the 3' untranslated region (UTR) of their regulatory target mRNAs. Recent work has begun to reveal roles for miRNAs in a wide range of biological processes, including cell proliferation, differentiation and apoptosis. Many miRNAs are expressed in cardiac and skeletal muscle, and dysregulated miRNA expression has been correlated with muscle-related disorders. We have previously reported that the expression of muscle-specific miR-1 and miR-133 is induced during skeletal muscle differentiation and miR-1 and miR-133 play central regulatory roles in myoblast proliferation and differentiation in vitro. In this study, we measured the expression of miRNAs in the skeletal muscle of mdx mice, an animal model for human muscular dystrophy. We also generated transgenic mice to overexpress miR-133a in skeletal muscle. We examined the expression of miRNAs in the skeletal muscle of mdx mice. We found that the expression of muscle miRNAs, including miR-1a, miR-133a and miR-206, was up-regulated in the skeletal muscle of mdx mice. In order to further investigate the function of miR-133a in skeletal muscle in vivo, we have created several independent transgenic founder lines. Surprisingly, skeletal muscle development and function appear to be unaffected in miR-133a transgenic mice. Our results indicate that miR-133a is dispensable for the normal development and function of skeletal muscle.
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影响因子:
64.8
作者:
Baek, Daehyun;Villen, Judit;Shin, Chanseok;Camargo, Fernando D.;Gygi, Steven P.;Bartel, David P.
通讯作者:
Bartel, David P.
DOI:
10.1073/pnas.0602831103
发表时间:
2006-06-06
影响因子:
11.1
作者:
Rao, Prakash K.;Kumar, Roshan M.;Lodish, Harvey F.
通讯作者:
Lodish, Harvey F.
DOI:
10.1083/jcb.200603039
发表时间:
2006-10-09
期刊:
The Journal of cell biology
影响因子:
--
作者:
Rosenberg MI;Georges SA;Asawachaicharn A;Analau E;Tapscott SJ
通讯作者:
Tapscott SJ
DOI:
10.1083/jcb.200603008
发表时间:
2006-08-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kim HK;Lee YS;Sivaprasad U;Malhotra A;Dutta A
通讯作者:
Dutta A
影响因子:
4.8
作者:
Messina, Sonia;Mazzeo, Anna;Vita, Giuseppe
通讯作者:
Vita, Giuseppe