期刊文献+

氧化应激促进人支气管上皮细胞表达血管内皮生长因子的可能机制 被引量:2

The probable mechanism of the expression of vascular endothelial growth factor in human bronchial epithelial cells under the stimulation of oxidative stress
在线阅读 下载PDF
导出
摘要 目的:探讨氧化应激的代表物质过氧化氢(H_2O_2)对人支气管上皮细胞(16-HBE)VEGF表达的影响及可能的调控机制。方法:过氧化氢部分为7组(0~500μmol·L^(-1)),NAC部分为3组(10~50 mmol·L^(-1))。Real time-PCR法检测不同H_2O_2浓度对16-HBE VEGF/β-actin基因表达水平的影响,并观察不同浓度NAC作用下H_2O_2(100μmol·L^(-1))对16-HBE表达VEGF基因的影响。应用ELISA法检测上述刺激组中细胞培养上清中VEGF的含量。结果:H_2O_2在50μmol·L^(-1)至200μmol·L^(-1)之间均能上调VEGF(165)的基因和蛋白的表达,以H_2O_2(100μmol·L^(-1))组上调最高,差异有统计学意义(P<0.05)。H_2O_2(100μmol·L^(-1))+LY294002(10μmol·L^(-1))较H_2O_2(100μmol·L^(-1))组VEGF基因和蛋白表达下降,差异有统计学意义(P<0.05)。H_2O_2(100μmol·L^(-1))+NAC(10 mmol·L^(-1)L)组、H_2O_2(100μmol·L^(-1))+NAC(20 mmol·L^(-1))组、H_2O_2(100μmol·L^(-1))+NAC(50 mmol·L^(-1))组较H_2O_2(100μmol·L^(-1))组VEGF基因和蛋白表达下降,差异有统计学意义(P<0.001)。H_2O_2(100μmol·L^(-1))+NAC(50 mmol·L^(-1))组较H_2O_2(100μmol·L^(-1))+NAC(10 mmol·L^(-1))组VEGF表达下降明显,差异有统计学意义(P<0.05)。结论:过氧化氢(H_2O_2)在一定浓度范围内能在基因和蛋白水平上调16-HBEVEGF(165)的表达,且能够被PI3K通路特异阻断剂LY294002所抑制,过氧化氢可经由PI3K通路上调16-HBEVEGF的表达;NAC在不影响细胞活力的情况下能够逆转由过氧化氢导致的16-HBE VEGF基因和蛋白水平的表达上调。 Objective: To investigate Effect of Hydrogen dioxide as a representative substance of oxidative stress on the expression of vascular endothelial growth factor in human bronchiolar epithelial cell (HBE). Methods: There were 7 groups in the Hydrogen dioxide group (0-500 μmol·L^-1 ), stimulated 16-HBE 12 for hours. There were 3 groups in the NAC groups(10-50 mmol·L^-1 ), stimulated 16-HBE 12 for hours. Real time-PCR was applied to detect VEGF gene expression of 16-HBE under the different concentrations of H 2O 2, LY294002, and NAC. Application of enzyme-linked immunosorbent assay (ELISA) were applied to detect the cell culture supernatant of VEGF protein expression. Results: H 2O 2(50 μmol·L^-1 ) group, H 2O 2 (100 μmol·L^-1 ) group, H 2O 2(150 μmol·L^-1 ) group, H 2O 2(200 μmol·L^-1 ) group increased VEGF (165) gene and protein expression compared with the normal control group, with statistically significance ( P 〈0.05); compared with other groups, the H 2O 2 (100 μmol·L^-1 ) group expressed the highest VEGF, with statistically significance ( P 〈0.05). H 2O 2 (100 μmol·L^-1 )+ LY294002 (10 μmol·L^-1 ) decreased VEGF gene and protein expression compared with H 2O 2 (100 μmol·L^-1 ) group, with statistically significance ( P 〈0.05 ; H 2O 2(100 μmol·L^-1 )+ NAC(10 mmol·L^-1 )group、H 2O 2(100 μmol·L^-1 )+NAC(20 mmol·L^-1 )group、H 2O 2(100 μmol·L^-1 )+NAC (50 mmol·L^-1 )group decreased VEGF gene and protein expression compared with H 2O 2(100 μmol·L^-1 ) group, with statistically significance( P 〈0.001); The H 2O 2(100 μmol·L^-1 )+NAC(50 mmol·L^-1 )group decreased VEGF gene and protein expression compared with H 2O 2 (100 μmol·L^-1 )+NAC(10 mmol·L^-1 )group,with statistically significance ( P 〈0.05). Conclusion: Hydrogen dioxide can increased the gene and protein expression of VEGF(165) in human bronchiolar epithelium cell(16-HBE) under certain concentrations, and these concentration did not affect the Cell viability; The H 2O 2(100μmol·L^-1 ) expressed the highst VEGF, and can be inhibited by PI3K pathway specific inhibitor LY294002; Hydrogen dioxide increases VEGF expression in 16-HBE via PI3K pathway, which can be reversed by NAC in certain concentration, and these concentration did not affect the Cell viability.
作者 沈湘波 李小玲 赵海金 蔡绍曦 SHEN Xiang-bo;LI Xiao-ling;ZHAO Hai-jin;CAI Shao-xi(Department of Respiratory,Changsha Central Hospital,Changsha,Hunan 410004;Department of Respiratory,Ping Xiang People's Hospital,Pingxiang,Jiangxi 337000;Department of Respiratory and Critical Care Medicine,Nanfang Hospital,Southern Medical University,Guangzhou,Guangdong 510515)
出处 《赣南医学院学报》 2018年第6期523-529,558,共8页 JOURNAL OF GANNAN MEDICAL UNIVERSITY
关键词 哮喘 氧化应激 血管内皮生长因子 人支气管上皮细胞 PI3K N-乙酰半胱氨酸 asthma oxidative Stress Human bronchiolar epithelial cell(HBE) Vascular Endothelial Growth Factor(VEGF) PI3K NAC
  • 相关文献

参考文献1

二级参考文献19

  • 1Bowler RP. Oxidative stress in the pathogenesis of asthma [J ]. Curr Allergy Asthma Rep, 2004, 4(2): 116-22.
  • 2Riedl MA, Nel AE. Importance of oxidative stress in the pathogenesis and treatment of asthma [J]. Curr Opin Allergy Clin Immunol, 2008, 8(1): 49-56.
  • 3Holgate ST. The airway epithelium is central to the pathogenesis of asthmaEJ]. Allergol Int, 2008, 57(1): 1-10.
  • 4Lee CG, Link H, Peter B, et al. Vascular endothelial growth factor (VEGF) induces remodeling and enhances TH2-mediated sensitization and inflammation in the lung-J]. Nat Med, 2004, 10 (10): 1095-103.
  • 5Crimi E, Ignarro LJ, Napoli C. Microcirculation and oxidative stress [J]. Free Radic Res, 2007, 41(12): 1364-75.
  • 6Xia C, Meng Q, Liu LZ. Reactive oxygen species regulate angiogenesis and tumor growth through vascular endothelial growth factor[J]. Cancer Res, 2007, 67(22): 10823-30.
  • 7Feltis BN, Wignarajah D, Zheng L, et al. Increased vascular endothelial growth factor and receptors: relationship to angiogenesis in asthma[J]. Am J Respir Crit Care Med, 2006, 173(11): 1201-7.
  • 8Sharma S, Murphy AJ, Soto-Quiros ME, et al. Association of VEGF polymorphisms with childhood asthma, lung function and airway responsiveness[J]. Eur Respir J, 2009, 33(6): 1287-94.
  • 9Holgate ST. Epithelium dysfunction in asthma [J]. J Allergy Clin Immunol, 2007, 120(6): 1233-44.
  • 10Koyama-S, Tsukadaira E, Haniuda M, et al. Vascular endothelial growth factor mRNA and -protein expression in airway epithelial cell lines in vitro[J]. Eur Respir J, 2002, 20(6): 1449-56.

共引文献5

同被引文献24

引证文献2

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部