Overexpression of C/EBPβ Affects The Cell Cycle Regulators and Spermatogenesis Related Genes Expression And Function of Bovine Sertoli Cells
2016
Tang, K | Jin, Y | Chen, F. | Wang, L
CCAAT/enhancer‐binding protein beta (C/EBPβ), an important transcriptional factor, plays a pivotal role in the regulation of female germ cell development. However, the role of C/EBPβ on the development of male germ cells has not been reported. In this study, we constructed the recombinant adenovirus plasmids of bovine C/EBPβ gene and harvested the subsequent adenoviruses, and then assessed the mRNA levels of spermatogenesis‐related genes (real‐time PCR) and secretion of inhibin B after 48 h of Ad‐C/EBPβ recombinant adenovirus infection in bovine sertoli cells (SCs). We found that overexpression of exogenous C/EBPβ gene upregulated the mRNA expressions of spermatogenesis‐related genes, including Pdgfa, Claudin, Caspase‐3, Occludin, kit1 and Cyclin E, and decreased the mRNA levels of Cyclin D1. Meanwhile, overexpression of exogenous C/EBPβ gene significantly increases the amounts of secreted inhibin B. In conclusion, the results indicate that the C/EBPβ gene plays an important regulatory role in regulation of the cell cycle regulators and spermatogenesis‐related genes expression and function of bovine SCs.
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