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碱性成纤维细胞生长因子对血管平滑肌细胞及内膜损伤后血管 及 型胶原mRNA表达的影响 |
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Role of basic fibroblast growth factor on procollagen α1[Ⅰ] and α1[Ⅲ] mRNA expression in vascular smooth muscle cells and arteries denuded with balloon catheter 周玉杰 汪丽蕙 柯元南 周爱儒 朱晓君 唐朝枢 Zhou Yujie, Wang Lihui, Ke Yuannan, et al
【摘要】 目的 使用α1[Ⅰ],α1[Ⅲ]人胶原cDNA探针进行Northern杂交技术, 观察碱性成纤维细胞生长因子(bFGF)对血管平滑肌细胞及内膜损伤后血管前胶原α1[Ⅰ], α1[Ⅲ] mRNA表达的影响。方法 将bFGF加入培养的平滑肌细胞,可以促使前胶原 α1[Ⅰ],α1[Ⅲ]mRNA的表达。雄性Sprague-Dawley大鼠分为四组:颈动脉内膜球 囊损伤+bFGF、颈动脉内膜球囊损伤+bFGF抗体、颈动脉球囊损伤、正常对照血管,上述 各组实验后1周检测分析前胶原mRNA的表达及3周检测各组血管的胶原含量。结果 bFGF 对内膜损伤后血管前胶原α1[Ⅰ],α1[Ⅲ]mRNA表达有明显的促进作用(P〈0.01),bF GF对血管胶原含量也有促进作用,应用bFGF特异性抗体可以阻滞上述作用。结论 bFGF 不仅刺激成纤维细胞等细胞的分裂增殖,对血管平滑肌细胞及损伤后血管前胶原α1[Ⅰ], α1[Ⅲ]mRNA的表达有明显促进作用,揭示它可能是损伤后血管胶原代谢中的重要因素, 对损伤后血管重塑有一定的作用。 【关键词】 成纤维细胞生长因子,碱性 胶原 血管
Role of basic fibroblast growth factor on procollagen α1[Ⅰ] and α1[Ⅲ] mRNA expression in vascular smooth muscle cells and arteries denuded with balloon catheter Zhou Yujie, Wang Lihui, Ke Yuannan, et al. Department of Cardiology, China-Japan Friendship Hospital, Beijing 100029 【Abstract】 Objective Effect of basic fibroblast growth factor (bFGF) on type Ⅰ(α1[Ⅰ]), type Ⅲ (α1[Ⅲ]) collagen mRNA expression was assessed in cultured vascular smooth muscle cells and the vessel wall after balloon injury. Methods In vivo experiment, the endothelium of carotid arteries of rats were denuded with balloon catheter (2F Fogarty balloon catheter) and were administered bFGF or bFGF antibody. Human collagen α1[Ⅰ], (α1[Ⅲ]) cDNA probes and Northern Blotting hybridization were employed to quantitate procollagen mRNA changes in cultured vascular smooth muscle cells (SMCs) and arteries denuded with balloon catheter. Results The data indicate that bFGF increased the procollagen α1[Ⅰ],&alp[1] [2] [3] 下一页 上一个医学论文: 血管内皮生长因子基因治疗犬闭塞性血管病的初步研究 下一个医学论文: 房室结双径路合并房室旁路的折返性心动过速及射频消融治疗
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