癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (2): 71-75.doi: 10.3969/j.issn.1004-616x.2005.02.002

• 论著 • 上一篇    下一篇

应用基因表达谱芯片研究MNNG诱致小鼠胚胎畸形肢体基因表达的变化

郭苗莉;朱江波;陈蓉芳;张天宝   

  1. 第二军医大学军队卫生学教研室, 上海200433
  • 收稿日期:2004-05-21 修回日期:2004-07-14 出版日期:2005-03-30 发布日期:2005-03-30
  • 通讯作者: 张天宝

Investigation on the Gene Expression Pattern of Abnormal Limb of Mouse Embryo Following Exposure to MNNG

GUO Miao-li;ZHU Jiang-bo;CHEN Rong-fang;ZHANG Tian-bao   

  1. Department of Military Hygiene,Second Military Medical University, Shanghai 200433, China
  • Received:2004-05-21 Revised:2004-07-14 Online:2005-03-30 Published:2005-03-30
  • Contact: ZHANG Tian-bao

摘要: 背景与目的: 研究N-甲基-N'-硝基-N-甲基亚硝基胍(N-methy-N'-nitro-N-nitrosoguandine,MNNG)诱致小鼠胚胎畸形肢体基因表达的变化,筛选肢体畸形相关基因。 材料与方法: 应用含有8 192条小鼠基因的cDNA表达谱芯片,对MNNG诱致的孕14 d胎鼠畸形肢体组织及正常肢体组织的基因表达谱进行分析。 结果: 畸形肢体组织共筛到差异表达基因287条,其中下调214条,上调73条。结论: MNNG诱致的小鼠胚胎肢体短肢、少趾畸形可引起很多基因的表达改变,涉及与凋亡有关的基因、与生长因子或生长因子样物质有关的基因、结构基因及很多功能未知的相关基因,差异表达基因中以下调基因居多,这些结果可为进一步研究肢体短肢、少趾畸形的形成机制提供依据。

关键词: N-甲基-N'-硝基-N-甲基亚硝基胍, 肢体畸形, 基因表达谱, 聚类分析, 小鼠

Abstract: BACKGROUND & AIM: To analyse the gene expression profiles in abnormal and normal developmental limbs of GD14 embryo mice. MATERIAL AND METHODS: A series of expression microarray analysis of abnormal limb were initiated by cDNA microarray which representing a set of 8 192 mice genes. RESULTS: By applying this cDNA microarray we identified 287 differentially expressed genes, among which 73 upregulated and 214 downregulated. CONCLUSION: cDNA microarray for analysis of gene expression patterns is a powerful method to identify teratogenicity-related gene. Further analysis of these differentially expressed genes will be helpful for understanding the molecular mechanism of teratogenicity.

Key words: N-methy-N'-nitro-N-nitrosoguandine, gene expression profiles, abnormal limb, cluster analysis, mouse