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Gene expression data from differentiated myoblastic C2C12 cells expressing constitutively active estrogen receptor α

ABSTRACT: Gene expression data from differentiated myoblastic C2C12 cells expressing constitutively active estrogen receptor α

PROVIDER: PRJNA436727 | ENA |

REPOSITORIES: ENA

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Gene expression data from differentiated myoblastic C2C12 cells expressing constitutively active estrogen receptor α

Project description:To examine the role of estrogen in muscle, differentiated myoblastic C2C12 cells were transduced with adenoviruses expressing constitutively active estrogen receptor α mutant (Ad-caERα) or DsRed (Ad-DsRed) as a control. Microarray analysis showed that the mRNA level of nuclear receptor subfamily 4 group A member 1 (NR4A1) was upregulated by the Ad-caERα compared with the control Ad-DsRed.

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Effect of ATF4 overexpression on mRNA levels in differentiated C2C12 myotubes.

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TEAD4 occupied genes in differentiated C2C12 myoblasts

Project description:The TEAD (1-4) transcription factors comprise the conserved TEA/ATTS DNA binding domain recognising the MCAT element in the promoters of muscle-specific genes. Despite extensive genetic analysis, the function of TEAD factors in muscle differentiation has proved elusive due to redundancy amongst the family members. Expression of the TEA/ATTS DNA binding domain that acts a dominant negative repressor of TEAD factors in C2C12 myoblasts inhibits their differentiation, while selective shRNA knockdown of TEAD4 results in abnormal differentiation characterised by the formation of shortened myotubes. Chromatin immunoprecipitation coupled to array hybridisation (ChIP-chip) shows that TEAD4 occupies 867 promoters including those of myogenic miRNAs. We show that TEAD factors cooperate with MYOD1 to directly induce Myogenin, CDKN1A and Caveolin 3 expression to promote myoblast differentiation and fusion. RNA-seq identifies a novel set of TEAD4 target genes encoding muscle structural and regulatory proteins and those required for the unfolded protein response. In contrast, TEAD4 represses expression of the growth factor CTGF and Cyclin D1 to promote differentiation. Together these results show that TEAD factor activity is essential for C2C12 cell differentiation and define a novel and nonredundant role for TEAD4 in regulating the unfolded protein response. C2C12 cells were infected with retrotiviral vector expressing Flag-HA-Tagged TEAD4 or with empty control vector and selected in the continouos presence of puromycin. Infected cell populations were then differentiated for 5 days in DMEM medium with 2% horse serum and fixed in 0.4% formaldehyde.

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