ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2017, Vol. 48 ›› Issue (2): 340-350.doi: 10.11843/j.issn.0366-6964.2017.02.018

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Establishment of an Oxidative Stress Model Induced by Vanadium in Oviduct Magnum Epithelial Cell of Laying Hens

HUANG Xuan-yang,WANG Jian-ping*,DING Xue-mei,BAI Shi-ping,ZENG Qiu-feng,ZHANG Ke-ying   

  1. (Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Key Laboratory for Animal Disease-Resistance Nutrition and Feed of China Ministry of Agriculture, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China)
  • Received:2016-07-29 Online:2017-02-23 Published:2017-02-23

Abstract:

This study was conducted to establish a V5+-induced oxidative stress model by using primary oviduct magnum epithelial cells (OMECs) of laying hens. OMECs were isolated from Lohman layers (2-3 weeks before onset of laying), cultured and characterized subsequently. Cultured OMECs were then treated with 0, 25, 50, 100, 250, and 1 000 μmol•L-1 vanadium for 12 h to measure cell viability, apoptosis ratio as well as cellular ROS, SOD, MDA, CAT and LDH released. The results showed that: 1) cell island formed after 24 h and showed classical flagstone morphology. Cultured cells were positive to anti-CK18, anti-OVA, anti-ESR1 and anti-PGR antibody, while were negative to anti-vimentin antibody. 2) Cell viability rate were (69.90±2.78)% and (63.60±1.57)% after 50 and 100 μmol•L-1 vanadium treated for 12 h, respectively, which were lower (P<0.05) than that of 25 μmol•L-1 and higher (P<0.05) than that of 250 and 1 000 μmol•L-1 vanadium. 3) The apoptosis rate increased(P<0.05) as vanadium levels increased, with the 1 000 μmol•L-1 vanadium treatment had the highest apoptosis rate. 4) The cellular ROS, FITC mean values in 100 and 250 μmol•L-1 vanadium groups were significantly higher than in 0 μmol•L-1 vanadium treatment (P<0.05), meanwhile FITC mean value in 250 μmol•L-1 was significantly higher than in 100 μmol•L-1 vanadium treatment (P<0.05). 5) Compared with 0 μmol•L-1 vanadium, cells treated with 50 μmol•L-1 vanadium had lower (P<0.05) SOD activity, while 100, 250 and 1 000 μmol•L-1 vanadium groups significantly increased MDA contents(P<0.05). The activity of CAT in 50, 100, 250 and 1 000 μmol•L-1 vanadium treatments were significantly lower than in 0 μmol•L-1 vanadium treatment (P<0.05). The amount of released LDH increased as vanadium levels increased, with the 1 000 μmol•L-1 vanadium treatment had the highest value (P<0.05), and 100 μmol•L-1 vanadium group had higher value than in 0 μmol•L-1 (P<0.05), up to 141.61±2.81 U•gprot-1. These results indicated that the primary OMECs were cultured successfully and supplementation of 100 μmol•L-1 vanadium in primary OMECs can be used to establish an oxidative stress model in OMECs.

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