首都医科大学学报 ›› 2006, Vol. 27 ›› Issue (1): 70-73.

• 基础研究 • 上一篇    下一篇

缺氧中和缺氧后亚低温时炎症基因表达谱的变化

崔红1,2, 张万东2, Jamie Hutchison3, Danica Stanimirovic2   

  1. 1. 首都医科大学附属北京友谊医院儿科;2. 加拿大国家研究院生物研究所;3. 加拿大东安大略省儿童医院
  • 收稿日期:2004-10-09 修回日期:1900-01-01 出版日期:2006-02-24 发布日期:2006-02-24

Microarray Profiling of Inflammatory Gene Expression in Hypoxia-/Hypothermia-Treated Human Cerebral Endothelial Cells

Cui Hong1,2, Zhang Wandong2, Jamie Hutchison3, Danica Stanimirovic2   

  1. 1. Department of Pediatrics, Beijing Friendship Hospital, Capital University of Medical Sciences;2. Institute For BiologicSciences, National Research Council of Canada;3. The Children's Hospital of Eastern Ontario, PICU, Canada
  • Received:2004-10-09 Revised:1900-01-01 Online:2006-02-24 Published:2006-02-24

摘要: 目的 了解缺氧中和缺氧后亚低温时炎症相关基因的变化.方法 将体外培养的人脑血管内皮细胞(HCEC)分为对照组和实验组.对照组细胞常规培养,实验组细胞去掉细胞培养液,更换为无血清、低糖M199,置于缺氧箱房中,再分为2组:Ⅰ组为常温缺氧后低温恢复;Ⅱ组为低温缺氧后常温恢复.取细胞并分离总RNA后,用DNA微列阵技术观察缺氧以及缺氧中和缺氧后亚低温时HCEC炎症相关基因表达谱的变化.结果 1)白介素-1受体1型(IL-1R1)、类1型白介素-1受体(IL-1RL1)、白介素-1β(IL-1β)、白介素-11(IL-11)、γ-干扰素调节因子2(IRF2)和集落刺激因子1(CSF1)分别在某些时间点上调;白介素-1受体拮抗剂(IL-1RN)、白介素-6(IL-6)、γ-干扰素受体2(IFNGR2)、集落刺激因子3受体(CSF3R)、淋巴细胞黏附因子1(SELL)、细胞间黏附因子3(ICAM3)、血小板/内皮细胞黏附因子(PECAM1)和内皮细胞黏附因子1(SELE)则在不同的时间点下调;γ-干扰素诱导蛋白30(IFI30)在某一些时间点上调,但在低温缺氧后常温恢复时下调;肿瘤坏死因子家庭成员7(TNFRSF7)则仅在低温时下调.2)缺氧4 h、32 ℃低温使下调基因增多.结论 缺氧可以使IL-1β、IL-1RL1、IL-1R1等部分损伤性炎症基因表达上调,IL-11的上调可能为保护性反应;TNF基因表达的上调可能起双重作用.

关键词: cDNA微列阵技术, 缺氧, 亚低温, 血管内皮细胞

Abstract: Objective To investigate the inflammatory gene expression in hypoxia-/hypothermia-treated human cerebral endothelial cells(HCEC).Methods Two groups were used: post hypoxic hypothermia and intra hypoxic hypothermia.For the experiments,the culture medium for HCEC was changed to M199(serum-free,low glucose) before the cells subject to hypoxia/hypothermia.Total RNA were then isolated and reverse-transcribed to cDNA for microarray experiments.Results The results showed that: 1) IL-1R1、IL-1RL1,IL-1β,IL-11,IRF2,IGFBP2,IGFBP3 and CSF1 were up-regulated,IL-1RN,IL-6,IFNGR2,CSF3R,SELL,ICAM3,PECAM 1and SELE were down-regulated at certain time-points.IFI30 was up-regulated during hypoxic hypothermia,but down-regulated after hypoxic hypothermia treatment.TNFRSF7 was down-regulated during hypothermia only.2) More genes were down-regulated by hypoxia for 4 h at 32 ℃ than that at 37 ℃.Conclusion Some inflammatory genes are up-regulated during hypoxia,such as IL-1β,IL1RL1 and IL-1R1.The up-regulated inflammatory genes such as IL-11 may be related to protective response to hypoxia.

Key words: cDNA microarray, hypoxia, mild hypothermia, human cerebral endothelial cells

中图分类号: