miR-411 is up-regulated in FSHD myoblasts and suppresses myogenic factors.
miR-411 is up-regulated in FSHD myoblasts and suppresses myogenic factors.
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DOI：
10.1186/1750-1172-8-55
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发表时间：
2013-04-05
影响因子：
3.7
通讯作者：
Chen YW
中科院分区：
文献类型：
--
作者：
Harafuji N;Schneiderat P;Walter MC;Chen YW
Facioscapulohumeral muscular dystrophy (FSHD) is an autosomal dominant muscle disorder, which is linked to the contraction of the D4Z4 array at chromosome 4q35. Recent studies suggest that this shortening of the D4Z4 array leads to aberrant expression of double homeobox protein 4 (DUX4) and causes FSHD. In addition, misregulation of microRNAs (miRNAs) has been reported in muscular dystrophies including FSHD. In this study, we identified a miRNA that is differentially expressed in FSHD myoblasts and investigated its function. To identify misregulated miRNAs and their potential targets in FSHD myoblasts, we performed expression profiling of both miRNA and mRNA using TaqMan Human MicroRNA Arrays and Affymetrix Human Genome U133A plus 2.0 microarrays, respectively. In addition, we over-expressed miR-411 in C2C12 cells to determine the effect of miR-411 on myogenic markers. Using miRNA and mRNA expression profiling, we identified 8 miRNAs and 1,502 transcripts that were differentially expressed in FSHD myoblasts during cell proliferation. One of the 8 differentially expressed miRNAs, miR-411, was validated by quantitative RT-PCR in both primary (2.1 fold, p<0.01) and immortalized (2.7 fold, p<0.01) myoblasts. In situ hybridization showed cytoplasmic localization of miR-411 in FSHD myoblasts. By analyzing both miRNA and mRNA data using Partek Genomics Suite, we identified 4 mRNAs potentially regulated by miR-411 including YY1 associated factor 2 (YAF2). The down-regulation of YAF2 in immortalized myoblasts was validated by immunoblotting (−3.7 fold, p<0.01). C2C12 cells were transfected with miR-411 to determine whether miR-411 affects YAF2 expression in myoblasts. The results showed that over-expression of miR-411 reduced YAF2 mRNA expression. In addition, expression of myogenic markers including Myod, myogenin, and myosin heavy chain 1 (Myh1) were suppressed by miR-411. The study demonstrated that miR-411 was differentially expressed in FSHD myoblasts and may play a role in regulating myogenesis.
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影响因子：
3.7
作者：
Duddy, William J.;Cohen, Tatiana;Partridge, Terence A.
通讯作者：
Partridge, Terence A.
影响因子：
3.7
作者：
Cardinali B;Castellani L;Fasanaro P;Basso A;Alemà S;Martelli F;Falcone G
通讯作者：
Falcone G
影响因子：
3.4
作者：
Celegato, Barbara;Capitanio, Daniele;Gelfi, Cecilia
通讯作者：
Gelfi, Cecilia
DOI：
10.1083/jcb.200911036
发表时间：
2010-09-06
期刊：
The Journal of cell biology
影响因子：
--
作者：
Chen JF;Tao Y;Li J;Deng Z;Yan Z;Xiao X;Wang DZ
通讯作者：
Wang DZ
DOI：
10.1073/pnas.0708659104
发表时间：
2007-11-13
影响因子：
11.1
作者：
Dixit, Manjusha;Ansseau, Eugenie;Chen, Yi-Wen
通讯作者：
Chen, Yi-Wen