畜牧兽医学报 ›› 2017, Vol. 48 ›› Issue (2): 340-350.doi: 10.11843/j.issn.0366-6964.2017.02.018

• 基础兽医 • 上一篇    下一篇

钒诱导蛋鸡输卵管膨大部上皮细胞氧化应激模型的建立

黄选洋,王建萍*,丁雪梅,白世平,曾秋凤,张克英   

  1. (四川农业大学 动物营养研究所,动物抗病营养教育部重点实验室,抗病营养与饲料农业部重点实验室,成都 611130)
  • 收稿日期:2016-07-29 出版日期:2017-02-23 发布日期:2017-02-23
  • 通讯作者: 王建萍,副研究员,博士,主要从事禽的营养研究,E-mail:wangjianping1983@hotmail.com
  • 作者简介:黄选洋(1991-),男,四川广汉人,硕士生,主要从事禽的营养研究,E-mail:hxy1819@sina.com
  • 基金资助:

    国家自然科学基金(青年项目31402031);四川省教育厅(青年基金13ZB0290);科技部科技支撑计划(2014BAD13B04);四川省科技厅(2014NZ0043;2014NZ0002;2013NZ0054)

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

摘要:

本试验旨在通过蛋鸡输卵管膨大部上皮细胞(OMECs)的原代培养,构建利用偏钒酸铵(V5+)建立氧化应激模型的方法。试验选用开产前2~3周龄健康罗曼蛋鸡,分离、培养及鉴定OMECs。利用单因素设计6个不同水平的钒浓度(0、25、50、100、250、1 000 μmol•L-1)处理12 h后,测定细胞活力、细胞凋亡、细胞活性氧(ROS)的生成,细胞内超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的活性,丙二醛(MDA)的含量,细胞上清液中乳酸脱氢酶(LDH)的释放量。结果表明:1)分离培养的细胞24 h后形成细胞岛,呈“铺路石样”;免疫荧光染色细胞抗细胞角蛋白(CK18)、卵清蛋白(OVA)、雌激素受体1(ESR1)和孕酮受体(PGR)呈阳性,抗波形蛋白呈阴性。2)50和100 μmol•L-1的钒处理OMECs 12 h后,细胞活力分别下降到(69.90±2.78)%和(63.60±1.57)%,显著低于25 μmol•L-1钒处理组(P<0.05),但是显著高于250和1 000 μmol•L-1钒处理组(P<0.05)。3)细胞凋亡率随着钒添加量的增多而升高,且各处理组差异显著(P<0.05);1 000 μmol•L-1的钒细胞凋亡率为最高(P<0.05)。4)ROS的测定结果表明,100和250 μmol•L-1钒处理组的FITC相对平均值显著高于0 μmol•L-1钒处理组(P<0.05),且250 μmol•L-1钒处理组的FITC相对平均值显著高于100 μmol•L-1钒处理组(P<0.05)。 5)50 μmol•L-1钒处理组SOD活性显著低于0 μmol•L-1钒处理组(P<0.05),但MDA含量差异不显著。而100 μmol•L-1钒处理组的MDA含量显著升高(P<0.05);50和100 μmol•L-1钒处理组细胞CAT活性显著低于0 μmol•L-1钒处理组(P<0.05);LDH释放量随着钒的添加剂量的增加而升高,1 000 μmol•L-1钒处理组LDH的释放量最高,且100 μmol•L-1钒处理组LDH的释放量显著高于0 μmol•L-1钒处理组(P<0.05),达到141.61±2.81 U•gprot-1。综上表明,OMECs原代细胞培养成功,在OMEC原代细胞里添加100 μmol•L-1的V5+处理12 h,可建立OMECs氧化应激模型。

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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