Effect of Bovine MEF2A Gene Expression on Proliferation and Apoptosis of Myoblast Cells

Genes (Basel). 2023 Jul 22;14(7):1498. doi: 10.3390/genes14071498.

Abstract

Myocyte enhancer factor 2A (MEF2A) is a member of the myocyte enhancer factor 2 family. MEF2A is widely distributed in various tissues and organs and participates in various physiological processes. This study aimed to investigate the effect of MEF2A expression on the proliferation and apoptosis of bovine myoblasts. CCK8, ELISA, cell cycle, and apoptosis analyses were conducted to assess cell status. In addition, the mRNA expression levels of genes associated with bovine myoblast proliferation and apoptosis were evaluated using RT-qPCR. The results showed that the upregulation of MEF2A mRNA promoted the proliferation rate of myoblasts, shortened the cycle process, and increased the anti-apoptotic rate. Furthermore, the RT-qPCR results showed that the upregulation of MEF2A mRNA significantly increased the cell proliferation factors MyoD1 and IGF1, cell cycle factors CDK2 and CCNA2, and the apoptotic factors Bcl2 and BAD (p < 0.01). These results show that the MEF2A gene can positively regulate myoblast proliferation and anti-apoptosis, providing a basis for the analysis of the regulatory mechanism of the MEF2A gene on bovine growth and development.

Keywords: MEF2A; apoptosis; myoblasts; proliferation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Apoptosis
  • Cattle
  • Cell Proliferation / genetics
  • Gene Expression
  • MEF2 Transcription Factors / genetics
  • MEF2 Transcription Factors / metabolism
  • Myoblasts* / metabolism
  • RNA, Messenger

Substances

  • MEF2 Transcription Factors
  • RNA, Messenger

Grants and funding

This study was supported by the Ministry of Education’s Research Cooperation Promotion Programme, the American University Area High-level Talent Cultivation Project ([2015] 2062), and the National Natural Science Foundation of China (31571279).