Email Alert | RSS    帮助

中国防痨杂志 ›› 2009, Vol. 31 ›› Issue (3): 160-163.

• 论著 • 上一篇    下一篇

尿激酶对大鼠胸膜成纤维细胞分泌TGF-β1、VEGF、PAI-1的影响

邵景韫1;刘安1;戚好文2   

  1. 1.西安市中心医院 西安 710003;2.第四军医大学西京医院 西安 710033
  • 出版日期:2009-03-10 发布日期:2011-11-03

The influence of urokinase on pleural fibroblasts secreting transforming growth factor β1,vascular endothelial growth factor and plasminogen activator inhibitor-1 in rats

Shao Jingyun1,Liu An1,Qi Haowen2   

  1. 1.Department of Respiratory Diseases, Xi’an central Hospital,Xi’an 710003, China;2. No.1 Attached Hospital of the fourth military medical universty, Xi’an 710033, China
  • Online:2009-03-10 Published:2011-11-03

摘要: 目的探讨尿激酶(urokinase,UK) 对大鼠胸膜的成纤维细胞(fibroblasts,FB)分泌转化生长因子-β1 (transforming growth factor beta-1,TGF-β1)、血管内皮生长因子(vascular endothelial growth factor,VEGF)、纤溶酶原激活物抑制剂(plasminogen activator inhibitor-1,PAI-1)的影响。方法取健康雄性SD大鼠胸膜,培养、纯化并鉴定FB。设对照组和实验组。对照组分2组:对照0组由不含胸膜FB的40个样本组成,加入无血清RPMI 1640培养液;对照1组由40个胸膜FB样本组成,加入无血清RPMI 1640培养液,培养24h后,用酶联免疫吸附法测定上清液中TGF-β1、PAI-1、VEGF的含量;实验组分为4组,共40个样本,分别加入5000、10000、20000和30000IU/ml的UK,培养24h后取上清液,测定其中TGF-β1、VEGF、PAI-1量。结果对照0组未检测出TGF-β1、PAI-1、VEGF;对照组1胸膜FB分泌TGF-β1、VEGF、PAI-1的量为(3135.205±390.975)pg/mL;(22.09±7.48)ng/ml;(1.8775±0.39)ng/ml;加入5000~30000IU/ml尿激酶的试验组, TGF-β1、VEGF、PAI-1的浓度与对照1组相比,有明显下降(P<0.05)。结论胸膜成纤维细胞能分泌TGF-β1、PAI-1、VEGF;而尿激酶能抑制其分泌。

关键词: 尿纤溶酶原激活物, 胸膜, 成纤维细胞, 转化生长因子β, 血管内皮生长因子A, 纤溶酶原激活物抑制物, 大鼠,sprague-dawley

Abstract: ObjectiveTo study the secretion of transforming growth factorβ1 (TGF-β1), vascular endothelial growth factor(VEGF)and plasminogen activator inhibitor-1(PAI-1)by fibroblasts(FB) and the influence of urokinase(UK) on the secretion. MethodsFibroblasts obtained from the pleura of fine male rats were cultured,purified and identified,and then were divided into control group 0, control group 1 and experimental group. There were 40 samples without fibroblasts in RPMI 1640 medium in control group 0 and 40 samples with many fibroblasts in RPMI 1640 medium in control group 1. 5000,10000,20000 and 30000IU/ml of urokinase were added into the 40 samples in four experimental groups, respectively. The samples each group were cultured for 24 hours, and then the level of TGF-β1, VEGF and PAI-1 in cultured supernatant fluids were measured by enzyme linked immunosorbent assay(ELISA). ResultsTGF-β1, VEGF and PAI-1 were not detected in control group 0. The concentration of TGF-β1,VEGF and PAI-1 in control group 1 were (3135.205±390.975)pg/ml, (22.09±7.48)ng/ml, (1.8775±0.39) ng/ml, respectively. They decreased obviously in four experimental groups compared with control groups. ConclusionsPleural Fibroblasts could secrete TGF-β1,VEGF and PAI-1.Urokinase could inhibit their secretion.

Key words: urinarg plasminogen actrvator, pleura, pleura, fibroblasts, transforming growth factorbeta, vascular endothelial growth faetor A, plasminogen activator inhibitor, rats, spraguedawley