实用肝脏病杂志 ›› 2012, Vol. 15 ›› Issue (2): 104-107.doi: 10.3969/j.issn.1672-5069.2012.02.008

• 肝纤维化 • 上一篇    下一篇

肝复康对肝纤维化大鼠肝组织整合素α5β1/FAK信号通路的调节作用*

张坤, 姜妙娜, 张彩华, 贾玉杰   

  1. 116044 辽宁省大连市 大连医科大学病理生理学教研室
  • 收稿日期:2011-12-08 出版日期:2012-04-10 发布日期:2017-03-07
  • 通讯作者: 贾玉杰,E-mail:pathophy@163.com
  • 作者简介:张坤 女,32岁,讲师。主要从事消化系统疾病病理生理学研究。原工作单位为包头医学院。E-mail:kunkunlove0508@163.com
  • 基金资助:
    辽宁省自然科学基金资助(编号:201102055)

Effect of Gan-fu-kang compound on hepatic expression of integrinα5β1/FAK signal pathway in carbon tetrachloride-induced liver fibrosis in rats

Zhang Kun, Jiang Miaona, Zhang Caihua, et al.   

  1. Department of Pathophysiology,Dalian Medical University,Dalian 116044, Liaoning Province,China
  • Received:2011-12-08 Online:2012-04-10 Published:2017-03-07

摘要: 目的 研究整合素α5β1/FAK信号通路在肝纤维化中的作用以及中药肝复康对此通路的影响。方法 将SD大鼠随机分为正常对照组、模型组、肝复康大剂量、中剂量和小剂量治疗组,皮下注射10%CCl4制备肝纤维化模型,自第9周起,给予肝复康灌胃治疗至第20周。采用免疫组化法检测大鼠肝组织整合素α5和整合素β1的表达情况;采用RT-PCR法检测FAK mRNA水平。结果 模型组大鼠肝组织整合素α5表达水平(0.50±0.01)比正常对照组(0.23±0.13)明显增高(P<0.01),而肝复康治疗后(大、中、小剂量治疗组分别为0.35±0.03、0.33±0.01、0.38±0.02)比模型组明显降低(P<0.01);模型组大鼠肝组织整合素β1表达水平 (0.44±0.02)比正常对照组(0.27±0.01)明显增高(P<0.01),肝复康治疗后(大、中、小剂量治疗组分别为0.37±0.01、0.34±0.01、0.39±0.01)表达水平较模型组明显降低(P<0.01);模型组动物FAK mRNA水平 (0.73±0.01)比正常对照组(0.11±0.02)明显增高(P<0.01),而肝复康治疗后(大、中、小剂量治疗组分别为0.33±0.03、0.28±0.01、0.18±0.01)比模型组明显降低(P<0.01)。结论 整合素α5β1/FAK信号通路的激活在肝纤维化中发挥重要作用,肝复康治疗肝纤维化作用的机制可能与抑制整合素α5β1/FAK通路的信号转导有关。

关键词: 肝纤维化, 肝复康, 整合素α5β1/FAK信号通路, 大鼠

Abstract: Objective To study the effect of traditional Chinese medicine Gan-fu-kang(GFK)on hepatic expression of integrinα5β1/ focal adhesion kinase(FAK) in carbon tetrachloride-induced liver fibrosis in rats. Methods SD rats were randomly divided into control,model,low,middle and high dose of GFK treatment groups. Liver fibrosis models of rats were made by subcutaneously injecting with 10%CCl4. GFK was orally given daily with GFK from week 9 to 20. The expression of integrinα5 and integrinβ1 protein and FAK mRNA were detected by immunohistochemical and RT-PCR techniques,respectively. Results The level of integrinα5 expression in model group(0.50±0.01)was obviously increased as compared with that in control group(0.23±0.13,P<0.01),and it was obviously downregulated in high,middle and low dose of GFK treatment groups respectively (0.35±0.03,0.33±0.01,0.38±0.02)as compared with model group(P<0.01); Similarly,the level of integrinβ1 expression in model group(0.44±0.02) was obviously increased as compared with that in control group(0.27±0.01,P<0.01),and it was decreased in high,middle and low dose of GFK treatment groups respectively(0.37±0.01,0.34±0.01,0.39±0.01) as compared with model group(P<0.01);At the same time,FAK mRNA level in model group(0.73±0.01)was obviously higher than that in control group(0.11±0.02,P<0.01),while it was lower in high,middle and low dose of GFK treatment groups respectively(0.33±0.03,0.28±0.01,0.18±0.01)than that in model group(P<0.01).Conclusion The activated integrinα5β1/FAK signal pathway may play an important role in liver fibrosis,and the therapeutic mechanisms of Gan-fu-kang on hepatic fibrosis may be related to the inhibition of this signal pathway.

Key words: Liver fibrosis, Gan-fu-kang, Integrinα5β1/FAK signal pathway, Rats