CREB1 promotes proliferation and differentiation by mediating the transcription of CCNA2 and MYOG in bovine myoblasts

• DOI: 10.1016/j.ijbiomac.2022.06.177
• Publication Date: 2022-06-29T00:45:42Z
• Authors: Yan-Rong Feng; Sayed Haidar Abba...; Cheng-Cheng Liang; Xiao-Yu Wang; Jian-Fang Wang; Wen-Zheng Zhang; Linsen Zan
• Keywords: 0303 health sciences; 03 medical and health sciences; Myoblasts, Skeletal; Animals; Cattle; Cell Differentiation; Cyclic AMP Response Element-Binding Protein; Muscle Development; Cell Proliferation

The cAMP response element binding protein 1 (CREB1) is an important nuclear transcription factor in eukaryotes. To explore the potential role of CREB1 on Qinchuan bovine skeletal myoblasts, we investigated the function of CREB1 on proliferation and differentiation. In this study, we found that CREB1 promoted cell proliferation by promoting DNA synthesis in S phase and cell division in G2 phase and promoted myogenic differentiation process in bovine myoblasts. Through dual luciferase experiments, we found that CREB1 can bind to the proximal promoter regions of CCNA2 and MyoG, indicating that CREB1 can play a positive regulatory role in the proliferation and differentiation of myoblasts by mediating the transcription of CCNA2 and MyoG. In addition, through downstream target gene analysis and transcriptome sequencing, we found that CREB1 plays a role in cell proliferation, myogenic differentiation, skeletal muscle repair and other related pathways.