槌果藤对进行性系统性硬化症患者成纤维细胞增殖和Ⅰ型胶原产生的影响

目的:探讨槌果藤乙醇提取物对进行性系统性硬化症(PSS)患者及正常人成纤维细胞增殖、Ⅰ型胶原产生的影响。方法:MTT比色法观察槌果藤提取物对成纤维细胞增殖活性的影响及其抗氧化作用,流式细胞仪检测提取物对细胞凋亡的影响,RT-PCR及Western blot检测提取物对PSS患者Ⅰ型胶原mRNA表达及蛋白合成的影响。结果:槌果藤提取物可抑制PSS患者成纤维细胞的增殖、Ⅰ型胶原mRNA表达及蛋白合成,呈剂量和时间依赖性,但无细胞毒性或诱导凋亡作用。该提取物对正常人成纤维细胞的增殖及胶原合成无影响,对过氧化氢造成的成纤维细胞损伤有一定保护作用。结论:槌果藤乙醇提取物可抑制PSS患者成纤维细胞增殖及Ⅰ型胶原的合成,并有抗氧化作用。

Effect of Capparis spinosa on fibroblast proliferation and type Ⅰ collagen production in progressive systemic sclerosis

OBJECTIVE: To investigate the effects of ethanolic extract from Capparis spinosa (ECS) on the fibroblast proliferation and type I collagen production in normal and progressive systemic sclerosis (PSS). METHOD: Cellular activity was determined by the MTT method. Apoptosis was detected by flow cytometry analysis of Annexin V-stained cells. The expression levels of type I collagen messenger RNA and protein were analyzed by RT-PCR and western blot analysis. RESULT: ECS could significantly inhibit the proliferation of fibroblast and reduced the expression of alpha2 (I) collagen mRNA and type I collagen protein in PSS in a dose-and time-dependent manner. ECS did not affect the proliferation of fibroblast and expression of type I collagen mRNA and protein in normal human. ECS could counteract the harmful effects on fibroblast by H2O2. CONCLUSION: ECS can effectively inhibit the fibroblast proliferation and type I collagen production in PSS.