癌变·畸变·突变 ›› 2008, Vol. 20 ›› Issue (1): 44-049.doi: 10.3969/j.issn.1004-616x.2008.01.011

• 论著 • 上一篇    下一篇

卷烟烟气诱发永生化人支气管上皮细胞恶性转化不同阶段的基因表达谱研究

胡迎春1/ 霍艳英1/ 钟科军2/ 杨陟华1/ 徐国蕊1/ 潘秀颉1/ 吴德昌1/ 朱茂祥1   

  1. (1.军事医学科学院放射与辐射医学研究所,北京 100850;2. 湖南卷烟厂技术部,湖南 常德 415000)
  • 收稿日期:2007-11-19 修回日期:2007-11-19 出版日期:2008-01-30 发布日期:2008-01-30

Cigarette Smoke Condense_ induced Alteration of Transcriptional Profile in Human Bronchial Epithelial Cells

HU Ying_chun1, HUO Yan_ying1,, ZHONG Ke_jun2, YANG Zhi_hua1, XU Guo_rui1, PAN Xiu_jie1, WU De_chang1, ZHU Mao_xiang1   

  1. (1.Department of Radiation Toxicology and Oncology, Beijing Institute f Radiation Medicine, Beijing 100850;2.Center of Science & echnology, Hunan Tobacco Company, Changde 415000, Hunan,China)
  • Received:2007-11-19 Revised:2007-11-19 Online:2008-01-30 Published:2008-01-30
  • Contact: Huo Yan_ying

摘要: 背景与目的: 应用基因芯片技术,分析卷烟烟气(cigarette smoke condense, CSC)诱发永生化人支气管上皮细胞BEP2D发生恶性转化不同阶段的基因表达谱变化。 材料与方法: 用CSC对不同代龄的永生化人支气管上皮细胞BEP2D进行染毒,用软琼脂克隆及流式细胞术对染毒细胞的恶性转化性状进行检测,分离培养已发生恶性转化的软琼脂克隆细胞。分别提取不同代龄染毒细胞的总RNA,选用人类全基因组寡核苷酸芯片Sentrix Human_6 Expression Bead Chip,通过芯片的杂交、清洗及扫描,对染毒细胞的基因表达谱进行分析。 结果: 用CSC对BEP2D细胞染毒后,从第30代细胞(P30)开始,细胞获得了锚着独立生长特性,流式细胞术分析显示,P40细胞出现多倍体。我们从软琼脂克隆中分离出具有恶性转化特性的细胞C2,与烟气溶剂对照细胞相比,染毒后细胞P10、P20、P30、P40及C2中均表达下调的基因有269个,表达上调的基因有63个,这些基因的改变发生在CSC诱发BEP2D细胞恶性转化的早期阶段,与癌启动相关。CSC染毒后,P10、P20表达没有变化,而在P30、P40及C2中发生表达下调的基因有316个,表达上调的基因有147个,这些基因的改变发生在CSC诱发BEP2D细胞恶性转化的中期,与癌促进相关。 结论: 从CSC诱发BEP2D细胞恶性转化不同阶段的基因表达谱,筛选出一批与癌症的启动及发展阶段相关的基因,为深入了解吸烟致肺癌的发生、发展机制提供了有价值的信息,同时也为制备吸烟致肺癌相关基因的检测芯片奠定实验基础。

关键词: 卷烟烟气, 支气管上皮细胞, 恶性转化, 基因表达谱

Abstract: BACKGROUND AND AIM: To explore the cigarette smoke condense(CSC) induced alteration of transcriptional profiling in papillomavirus_immortalized human bronchial epithelial cells(BEP2D). MATERIALS AND METHODS: We used CSC to treat BEP2D cells and examined the oncogenic transforming effects of CSC. Anchorage_ independent growth and the chromosome changes were used to investigate the various stages of transformation in BEP2D cells. Microarray assay was used to explore the CSC_induced alteration of transcriptional profiling. RESULTS: After CSC treatment, the P30 of BEP2D cells gained anchorage independence growth ability. The chromosomal number of the P40 cells was poly_ploid. In the earlier period of CSC treatment, 269 genes were down_regulated and 63 genes were up_regulated. In the advanced stage of CSC treatment, 316 genes were down_regulated and 147 genes were up_regulated. CONCLUSION: We successfully analyzed the alteration of transcriptional profile in BEP2D cells induced by CSC and identified a batch of genes related with the initiation and development of lung cancer.

Key words: cigarette smoke condense, bronchial epithelial cells, malignant transformation, transcriptional profile

中图分类号: