China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (5): 1566-1573.doi: 10.16431/j.cnki.1671-7236.2021.05.007

• Biotechnology • Previous Articles     Next Articles

Effect of Superoxide Dismutase Mimetic on Antioxidant Capacity of Oxidatively Damaged IPEC-J2 Cells

WANG Sibo1, CUI Hongxia2, YANG Ji1, XU Li1   

  1. 1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China;
    2. Inner Mongolia Ordos City Animal Husbandry Station, Ordos 017000, China
  • Received:2020-10-15 Online:2021-05-20 Published:2021-05-20

Abstract: The objective of this study was to investigate the protective effect of superoxide dismutase mimetic (SODm) on intestinal epithelial cell (IPEC-J2) under H2O2-induced oxidative stress.Using MTT method to screen out the proper concentration of H2O2 applied in structuring oxidative stress model.IPEC-J2 were cultured with 0,0.05,0.5,5,50,500 and 2 000 U/mL SODm,respectively.The survival of each group was detected by MTT in 2,4,8 and 12 h to determine the proper range and duration of a SODm dose.Based on the model of oxidative stress and the proper range and duration of SODm,IPEC-J2 were randomly grouped as the control group,the model group with H2O2,the disposed group with SODm (SODm0.5,SODm5,SODm50),the disposed group with SOD (SOD0.5,SOD5,SOD50),then cell viability,ROS levels and SOD,GSH-Px,MDA,T-AOC levels in cells were measured in each group.The results were showed as follows:①1.0 mmol/mL H2O2 was the proper concentration in structuring oxidative stress model.②The survival ratios of the disposed group with SODm of 0.5~50 U/mL in 4,8 and 12 h was significantly higher than that of the control groups (P<0.05).The survival ratio was highest at 8 h and decreased at 12 h.③The IPEC-J2 survival rate of the SODm5 and SOD5 groups were significantly higher than that in other groups (P<0.05) except for the blank group,and the ROS contents in the SODm and SOD groups were significantly lower than that in the model group (P<0.05).The activities of SOD,GSH-Px and T-AOC were significantly decreased,and MDA content were significantly increased in model group compared with the control group (P<0.05).The treatments of SODm and SOD increased the activities of SOD,GSH-Px and T-AOC,and significantly decreased MDA content compared with the model group(P<0.05),The T-AOC level of SOD50 group was higher than that of SODm50 group (P<0.05).In conclusion,SODm had protective effect on IPEC-J2 cells under H2O2-induced oxidative stress.

Key words: superoxide dismutase mimetic(SODm); oxidative stress; IPEC-J2 cells

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