河南农业科学 ›› 2020, Vol. 49 ›› Issue (1): 148-156.DOI: 10.15933/j.cnki.1004-3268.2020.01.021

• 畜牧·兽医 • 上一篇    下一篇

氯化汞对中国大鲵皮肤CATH-BF基因及心脏和胰腺CATH-2、CATH-3基因表达的影响

叶婷,王兴香,刘亚男,曹宇,许抗抗,李灿   

  1. (贵阳学院 生物与环境工程学院/贵州省山地珍稀动物与经济昆虫重点实验室,贵州 贵阳 550005)
  • 收稿日期:2019-07-09 出版日期:2020-01-15 发布日期:2020-01-15
  • 通讯作者: 李灿(1977-),男,贵州盘县人,教授,博士,主要从事有害生物控制与资源利用研究。E-mail:lican790108@163.com
  • 作者简介:叶婷(1988-),女,贵州盘县人,讲师,博士,主要从事环境毒理学研究。E-mail:tyerfhu@126.com
  • 基金资助:
    贵州省一流学科建设项目贵阳学院学科建设项目(黔教科研发[2017]85);贵州省高层次创新人才“百”层次人才项目(黔科合人才[2016]4020号);贵州省科学技术联合基金项目(黔科合LH字[2015]7311);贵州省教育厅大鲵深加工技术开发产学研基地项目(黔教合KY字[2014]231);贵州省大鲵可持续利用协同2011创新中心项目(黔教合协同创新字[2015]06);贵州省科学技术基金项目(黔科合基础[2018]1005);贵阳市科技局贵阳学院专项项目(GYU-KYZ[2018]02-11)

Effects of Mercuric Chloride on the Expression of CATH-BF in the Skin and CATH-2 and CATH-3 in the Heart and Pancreas of Chinese Giant Salamander(Andrias davidianus)

YE Ting,WANG Xingxiang,LIU Yanan,CAO Yu,XU Kangkang,LI Can   

  1. (College of Biology and Environmental Engineering,Guiyang University/Guizhou Provincial Key Laboratory for Rare Animal and Economic Insects of the Mountainous Region,Guiyang 550005,China)
  • Received:2019-07-09 Published:2020-01-15 Online:2020-01-15

摘要: 为探讨氯化汞( HgCl2)对大鲵皮肤CATH-BF基因及心脏和胰腺CATH-2、CATH-3基因表达的影响,将幼龄中国大鲵分别暴露于0 (对照)、1、10、100 ng/L HgCl2 中24、48、72 h,采用实时定量RT-PCR方法分析HgCl2处理不同时间后,大鲵皮肤CATH-BF、心脏和胰腺中CATH-2、CATH-3基因的表达情况。结果显示,与对照组相比,大鲵暴露于HgCl2 24 h后,大鲵皮肤CATH-BF基因表达水平均呈现下降变化趋势,即1、100 ng/L HgCl2对大鲵暴露24 h极显著下调了大鲵皮肤CATH-BF基因表达水平(P<0.01),10 ng/L HgCl2对大鲵暴露24 h显著下调了大鲵皮肤CATH-BF基因表达水平(P<0.05),10、100 ng/L HgCl2对大鲵暴露48 h显著诱导了大鲵皮肤CATH-BF基因表达(P<0.05),大鲵暴露于HgCl2 72 h后,HgCl2对大鲵皮肤CATH-BF基因表达无显著影响;大鲵暴露于HgCl2 24 h后,不同质量浓度HgCl2对大鲵心脏CATH-2基因表达水平有不同的影响,即1、10 ng/L对大鲵暴露24 h极显著下调了心脏CATH-2基因表达水平(P<0.01),100 ng/L HgCl2对大鲵暴露24 h极显著上调了心脏CATH-2基因表达水平(P<0.01),10、100 ng/L HgCl2对大鲵暴露48 h后显著下调了大鲵心脏CATH-2基因表达水平(P<0.05);10、100 ng/L HgCl2对大鲵暴露24 h显著下调了大鲵胰腺CATH-2基因表达水平(P<0.05);1、10 ng/L HgCl2对大鲵暴露24 h极显著诱导了心脏CATH-3基因表达水平(P<0.01),大鲵暴露于HgCl2 24、48、72 h后,HgCl2 对胰腺CATH-3基因表达均无显著性影响。可见,HgCl2 对大鲵皮肤CATH-BF基因及胰腺和心脏CATH-2、CATH-3基因表达的影响处于动态变化模式,并且HgCl2对大鲵胰腺和心脏CATH-2、CATH-3基因表达影响存在组织特异性差异。

关键词: 中国大鲵, 氯化汞, CATH-BF基因, CATH-2基因, CATH-3基因

Abstract: In order to explore the effects of mercuric chloride(HgCl2) on the expression of CATH-BF in the skin and CATH-2 and CATH-3 in the heart and pancreas of Chinese giant salamander(Andrias davidianus),the juvenile stage giant salamanders were continuously exposed to 0(control),1,10,and 100 ng/L HgCl2 for 24,48,72 h respectively,and the effects of mercuric chloride on the expression of CATH-BF in the skin and CATH-2 and CATH-3 in the heart and pancreas of Chinese giant salamander were investigated by real time quantitative RT-PCR method.After exposure to HgCl2 for 24 h,the expression level of CATH-BF in the skin of giant salamander was reduced compared with the control group.1 and 100 ng/L HgCl2 very significantly down-regulated the expression of CATH-BF in the skin (P<0.01). 10 ng/L HgCl2 significantly down-regulated the expression of CATH-BF gene in the skin after exposure for 24 h(P<0.05).10 and 100 ng/L HgCl2 significantly induced the expression of CATH-BF gene in the skin after exposure for 48 h(P<0.05).Exposure to HgCl2 for 72 h had no significant effects on the expression of CATH-BF gene in the skin.Different concentrations of HgCl2 had different effects on the expression of CATH-2 gene in the heart of the giant salamander.1 and 10 ng/L HgCl2 significantly down-regulated the expression of CATH-2 gene in the heart after exposure for 24 h(P<0.01).100 ng/L HgCl2 significantly up-regulated the expression of CATH-2 gene in the heart after exposure for 24 h(P<0.01).10 and 100 ng/L HgCl2 significantly down-regulated the expression of CATH-2 gene in the heart of the giant salamander after 48 h of exposure(P<0.05).10 and 100 ng/L HgCl2 significantly down-regulated the expression of CATH-2 gene in the pancreas after 24 h of exposure(P<0.05).1 and 10 ng/L HgCl2 significantly induced the expression of CATH-3 gene in the heart after exposure to HgCl2 for 24 h(P<0.01).HgCl2 had no significant effect on the expression of CATH-3 gene in the pancreas after 24, 48 and 72 h of exposure.It was concluded that the pattern of effects of mercuric chloride on the expression of CATH-BF in the skin and CATH-2 and CATH-3 in the heart and pancreas of Chinese giant salamander was dynamic,and the effects of HgCl2 on the expression of CATH-BF in the skin and CATH-2 and CATH-3 in the heart and pancreas showed tissue specificity.

Key words: Chinese giant salamander(Andrias davidianus), Mercuric chloride, CATH-BF gene, CATH-2 gene; CATH-3 gene

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