基础医学与临床 ›› 2014, Vol. 34 ›› Issue (10): 1358-1362.

• 研究论文 • 上一篇    下一篇

HO-1减轻吸烟大鼠血清引起的HUVEC氧化损伤

杨根欢1,吴为2,李砚川3,倪冷4,王占启1,王超楠1,刘昌伟5   

  1. 1. 中国医学科学院 北京协和医学院 北京协和医院
    2. 卫生部中日友好医院临床医学研究所
    3. 中国医学科学院基础医学研究所 北京协和医学院基础学院 生物化学与分子生物学系 医学分子生物学国家重点实验室
    4. 中国医学科学院 北京协和医学院 北京协和医院 血管外科
    5. 中国医学科学院北京协和医院
  • 收稿日期:2014-04-25 修回日期:2014-05-22 出版日期:2014-10-05 发布日期:2014-09-25
  • 通讯作者: 刘昌伟 E-mail:liucw@sina.vip.com
  • 基金资助:
    北京市自然科学基金

Heme Oxygenase-1 can alleviate the oxidative damage caused by serum of smoking rats on human umbilical vein endothelial cell

  • Received:2014-04-25 Revised:2014-05-22 Online:2014-10-05 Published:2014-09-25

摘要: 目的 探讨血红素氧化酶-1(HO-1)是否能够减轻吸烟大鼠血清引起的人脐静脉内皮细胞(HUVEC)的氧化损伤。方法 15只雄性SD大鼠随机分为正常对照组、吸烟组、吸烟并注射锌原卟啉(ZnPP)组。建立大鼠吸烟模型。Western blot检测各组大鼠颈动脉中HO-1的表达。体外培养HUVEC,分为加入正常大鼠血清、吸烟大鼠血清和吸烟并注射ZnPP大鼠血清。Western blot检测各组HO-1的表达。将吸烟大鼠血清加入HO-1过表达及HO-1低表达的HUVEC中,应用二氢溴化乙啶检测各组活性氧的含量。结果 吸烟可以明显诱导大鼠颈动脉中HO-1的表达(P <0.01)。吸烟大鼠血清及吸烟并注射ZnPP大鼠血清均可诱导HUVEC中HO-1的表达,但后者作用更强(P <0.01)。吸烟大鼠血清能使HUVEC内活性氧含量增多(P <0.01),HO-1能减轻此氧化损伤(P <0.01)。结论 吸烟大鼠血清可以造成HUVEC的氧化损伤,H0-1能够减轻此氧化损伤作用。

关键词: 吸烟, 血红素加氧酶-1, 血管, 内皮细胞, 氧化损伤

Abstract: Objective To study whether Heme Oxygenase-1(HO-1) can alleviate the oxidative damage caused by serum of smoking rats on human umbilical vein endothelial cell(HUVEC). Methods Fifteen male Sprague-Dawley rats were randomized into control group,smoking group,and smoking with Zincprotoporphyrin(ZnPP) group.Western blot was used to detect the expression of HO-1 in carotid arteries of the rats.Also the expression of HO-1was detected in HUVEC cultured in the serum of normal rats,smoking rats and smoking with ZnPP rats.The reactive oxygen species were detected in HO-1-overexpressing and HO-1-lowexpressing HUVEC ,cultured in the serum of smoking rats.Results The expression of HO-1 in carotid arteries of smoking rats was significantly higher than that of normal rats(P <0.01).Both the serum of smoking rats and HO-1depressed smoking rats could induced the expression of HO-1 in HUVEC,and the role of the latter was more obvious(P <0.01).The reactive oxygen species of HUVEC cultured in the serum of smoking rats were more than that cultured in the serum of nornal rats(P<0.01),also the HO-1 could release the oxidative damage(P<0.01).Conclusion Smoking can cause the oxidative damage to HUVEC ,and HO-1 can alleviate the damage.

Key words: smoking, heme oxygenase-1, vascular, endothelial cell, oxidative damage