Acta Agriculturae Zhejiangensis ›› 2022, Vol. 34 ›› Issue (5): 934-941.DOI: 10.3969/j.issn.1004-1524.2022.05.07

• Animal Science • Previous Articles     Next Articles

Effects of MitoQ on mitochondrial function and antioxidant capacity of canine bone marrow mesenchymal stem cells

ZHONG Lijun(), DENG Jiaqiang, GU Congwei, SHEN Liuhong, CAO Suizhong, YU Shumin()   

  1. College of Veterinary Medicine,Sichuan Agricultural University,Chengdu 611130,China
  • Received:2021-01-18 Online:2022-05-25 Published:2022-06-06
  • Contact: YU Shumin

Abstract:

The aim of this study was to investigate the effect of Mitoquinone (MitoQ), a mitochondrial-targeted antioxidant, on the mitochondrial function and antioxidant gene expression of canine bone marrow mesenchymal stem cells (BMSCs), which may provide a theoretical basis for improving the clinical application efficiency of canine BMSCs. Canine BMSCs treated with MitoQ for 48 h were used as materials to evaluate the mitochondrial function and the expression level of antioxidant genes.The results showed that with the increase of passage times,the mitochondrial fusion of BMSCs was significantly advanced, and mitochondrial division was significantly weakened. In addition, the mitochondrial membrane potential and ATP content were significantly decreased and the expression of antioxidant genes of BMSCs was also significantly down-regulated.After MitoQ pretreatment, the expression of BMSCs mitochondrial fusion gene Mfn2 was slightly up-regulated, and the expression of mitochondrial division gene Drp1 and mitochondrial biosynthesis-related gene PGC-1α were significantly up-regulated. More over, the mitochondrial membrane potential and ATP content increased significantly and the expression of antioxidant genes SOD1, SOD2, CAT and GSH-Px was significantly up-regulated.In summary, MitoQ can improve the mitochondrial function and enhance the antioxidant capacity of canine BMSCs.

Key words: canine, mitochondria, oxidative stress

CLC Number: