实验动物与比较医学 ›› 2015, Vol. 35 ›› Issue (3): 188-194.DOI: 10.3969/j.issn.1674-5817.2015.03.003

• 论著 • 上一篇    下一篇

Smads蛋白家族在大鼠放射性肝纤维化形成过程中的表达

高世乐1, 胡宗涛1, 秦峰1, 朱杰1, 黄德武2, 董六一3   

  1. 1.解放军第105医院肿瘤三科,合肥 230031;
    2.安徽医科大学,安徽省实验动物中心,合肥 230032;
    3.安徽医科大学药理学教研室,教育部抗炎免疫药理学重点实验室,国家中医药管理局中药药理三级实验室,合肥 230032
  • 收稿日期:2014-08-25 出版日期:2015-06-25 发布日期:2015-06-25
  • 作者简介:高世乐(1982-), 男, 硕士, 研究方向: 放射性肝纤维化。E-mail: gslhf0551@163.com;胡宗涛(1972-), 共同第一作者, 男, 博士, 副主任医师, 研究方向: 肿瘤放疗。E-mail: huxuyan@163.com
  • 基金资助:
    解放军第105医院重点课题(No.2010YG12)

Expression of Smads Protein Family in Radiation-induced Rats Liver Fibrogenesis

GAO Shi-le1, HU Zong-tao1, QIN Feng1, ZHU Jie1, HUANG De-wu2, DONG Liu-yi3   

  1. 1. The 3rd Tumor Section, 105th Hospital of Chinese PLA, Hefei 230031, China;
    2. Anhui Laboratory Animal Center, Anhui Medical University, Hefei 230032, China;
    3. Department of Pharmacology, Key Laboratory of Anti-inflammatory and Immunopharmacology,Ministry of Education, Key Laboratory of Chinese Medicine Research and Development, State Administration of Traditional Chinese Medicine, Anhui Medical University, Hefei 230032, China
  • Received:2014-08-25 Online:2015-06-25 Published:2015-06-25

摘要: 目的 探讨Smad2/3/7、TGF-β1蛋白在大鼠放射性肝纤维化(RHF)形成过程中的表达情况。方法 建立雄性SD大鼠RHF模型。将实验大鼠随机分为正常对照组、照射组(2周、4周、8周、12周、26周),除正常对照组外,其余各组大鼠均制备成RHF模型。在照射后第2周、4周、8周、12周、26周末,分别剖检各组大鼠,取肝脏标本备用。光学显微镜下观察大鼠肝脏组织HE染色变化,免疫组织化学法测大鼠肝脏组织Smad2/3/7、TGF-β1蛋白含量表达。结果 与正常对照组相比,照射组大鼠肝脏损伤及纤维化程度明显增加,肝脏组织免疫组织化学Smad2蛋白含量增加(P<0.05),Smad3、TGF-β1蛋白含量明显增加(P<0.01),Smad7蛋白含量明显减少(P<0.01)。结论 随着大鼠RHF的加重, Smad2/3、TGF-β1蛋白表达增加, Smad7蛋白表达下调。

关键词: Smads蛋白家族, 大鼠, 放射性肝纤维化(RHF)

Abstract: Objective To investigate the expression of Smad2/3/7、TGF-β1 proteins in radioactive liver fibrosis process of rats. Methods The experimental animal model of radioactive liver fibrosis was established in male SD rats. The rats were randomly divided into normal control group and irradiated groups (2, 4, 8, 12 and 26 weeks), except normal control group, other groups all were made into model of radioactive liver fibrosis. The rats were sacrificed and isolated liver tissue as backup on 2nd、4th、8th、12th、26th weekend after radiation. The changes of rats liver tissue was detected by HE staining under light microscope. The expression of rats liver tissue Smad2/3/7、TGF-β1 proteins was detected by immunohistochemitry staining. Results Compared with the normal control group, the liver injury and liver fibrosis of irradia ted groups were increased obviously, Smad2 proteins content of liver tissue increased(P<0.05), Smad3、TGF-β1 proteins content increased obviously (P<0.01), and Smad7 proteins content reduced obviously (P<0.01). Conclusion With the aggravation of radioactive liver fibrosis in rats, the expression of Smad2/3、TGF-β1 proteins increased, the expression of Smad7 proteins reduced.

Key words: Smads proteins family, Rats, Radioactive liver fibrosis(RHF)

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