畜牧兽医学报 ›› 2019, Vol. 50 ›› Issue (10): 2129-2138.doi: 10.11843/j.issn.0366-6964.2019.10.020

• 基础兽医 • 上一篇    下一篇

运输应激对山羊心的病理损伤及HSP27、HSP70和HSP90表达的影响

郑文亚1,2, 张雯苑2, 刘犇2,3, 杨雪2, 肖鹏2, 王安平2, 崔燕1*   

  1. 1. 甘肃农业大学动物医学院, 兰州 730070;
    2. 宜春学院生命科学与资源环境学院, 肉牛羊疾病控制实验室, 宜春 336000;
    3. 江西绿科农牧科技有限公司, 宜春 336000
  • 收稿日期:2019-03-26 出版日期:2019-10-23 发布日期:2019-10-23
  • 通讯作者: 崔燕,主要从事基础兽医学研究,E-mail:cuiyan369@sina.com
  • 作者简介:郑文亚(1984-),女,河南漯河人,讲师,博士生,主要从事反刍动物疾病的研究,E-mail:872901750@qq.com
  • 基金资助:
    国家自然科学基金(31772691);江西现代农业科研协同创新专项(JXXTCX201702)

Effects of Transport Stress on Pathological Injury and Expression of HSP27, HSP70 and HSP90 of the Heart in Goats

ZHENG Wenya1,2, ZHANG Wenyuan2, LIU Ben2,3, YANG Xue2, XIAO Peng2, WANG Anping2, CUI Yan1*   

  1. 1. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
    2. Laboratory For Disease Control of Beef Cattle and Sheep, College of Life Science and Resources and Environment, Yichun University, Yichun 336000, China;
    3. Jiangxi Lvke Agriculture and Animal Husbandry Technology Co. LTD, Yichun 336000, China
  • Received:2019-03-26 Online:2019-10-23 Published:2019-10-23

摘要: 运用HE染色法、透射电镜技术、免疫组织化学、免疫印迹和ELISA等方法,探讨不同运输时间对山羊(Capra hircus)心的病理损伤及对热休克蛋白表达的影响,分析公路运输应激2、6 h条件下山羊心的显微结构、超微结构及HSP27、HSP70、HSP90的定位和表达量的变化情况。结果表明运输应激组山羊心肌纤维有程度不一的弥漫性颗粒变性,细胞内线粒体肿胀、破裂,间质水肿、出血、炎性细胞浸润,毛细血管扩张、充血,运输6 h组的病变更严重。HSP27、HSP70、HSP90主要在心肌细胞的细胞质中表达,HSP27和HSP90在细胞核中也有表达,三种蛋白在不同区域的心肌纤维和心肌细胞中分布不均。与对照组相比,运输应激2 h组山羊心HSP27蛋白表达量显著升高,运输应激6 h组HSP27表达量下降;与对照组相比,运输应激2和6 h组HSP70、HSP90蛋白表达量均显著或极显著升高。总之,运输应激山羊心组织细胞发生了病理损伤,心肌细胞急性变性十分明显,运输应激6 h组心肌细胞变性更严重,运输后HSP27、HSP70和HSP90蛋白表达量发生了明显变化,与心的应激损伤存在一定的关联。

Abstract: The effects of different transport time on pathological damage in the heart of goats (Capra hircus) were investigated with HE staining and transmission electron microscopy technique, and the expression of heat shock protein were analyzed with immunohistochemistry, Western blot and ELISA. The changes of microstructure, ultrastructure, localization and expression of HSP70, HSP27 and HSP90 in goat hearts under 2 and 6 hours of road transport stress were analyzed. The results showed that the myocardial fibers of goats in transport stress group exhibited diffuse granular degeneration of varying degrees, the intracellular mitochondria were swollen and broken, the edema, hemorrhage and inflammatory cell infiltration were observed in intercellular substance, capillaries were dilated and congested. And the lesion in the group transported for six hours was more serious. HSP70, HSP27 and HSP90 were mainly expressed in the cytoplasm of cardiac myocytes. HSP27 and HSP90 were also expressed in the nucleus of cardiac myocytes. This three proteins were unevenly distributed in myocardial fibers and myocardial cells of different regions. Compared with the control group, the expression levels of HSP27 protein in the heart of goats in group transported for two hours increased significantly, while the expression level of HSP27 after six-hour transportation stress decreased. Compared with the control group, the expression level of HSP70 and HSP90 protein in the groups transported for 2 and 6 hours increased significantly or increased extremely significantly. In conclusion, the pathological damage of cardiac tissue cells occurred in goats under transport stress, and the acute degeneration of cardiac cells was very obvious. The degeneration was more serious after six-hour transportation stress. The expression levels of HSP70, HSP27 and HSP90 proteins changed significantly after transport, which was related to the stress injury of heart.

中图分类号: