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Research of CTGF expression and regulation by fasudil in the pulmonary hypertension rat model
Author(s): 
Pages: 23-27
Year: Issue:  2
Journal: Acta Academiae Medicinae Shandong

Keyword:  Connective tissue growth factorTransforming growth factor-β1FasudilPulmonary hypertensionRatsWistar;
Abstract: 目的研究结缔组织生长因子(CTGF)在高肺血流性肺动脉高压大鼠模型中的表达及法舒地尔对其的调控作用。方法将75只W istar大鼠分为对照组、2个分流组和2个分流+法舒地尔干预组,每组15只。对照组于第4周测量右心室平均收缩压(RVSP)、2个分流组和2个分流+法舒地尔干预组分别于第2周和第4周测量RVSP。采用W estern b lot法和免疫组化检测各组肺动脉中CTGF、转化生长因子β1(TGFβ-1)的含量以及Rho激酶的活性。结果分流组大鼠第2周及第4周肺动脉明显增厚(P<0.01)、重塑,RVSP增加(P<0.01),CTGF及TGFβ-1表达增加(P<0.01),且Rho激酶活性增强(P<0.01)。应用法舒地尔干预后,肺动脉Rho激酶活性明显降低(P<0.01),且CTGF和TGFβ-1在肺动脉中的表达较分流组明显降低(P<0.01)、肺血管重塑较分流组显著减轻(P<0.01)。结论CTGF,TGFβ-1参与了高肺血流性肺动脉高压的发病过程,且Rho激酶信号转导通路对肺血管的重塑及CTGF,TGFβ-1的表达有着重要的调控作用。
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