癌变·畸变·突变 ›› 2005, Vol. 17 ›› Issue (4): 202-205.doi: 10.3969/j.issn.1004-616x.2005.04.003

• 论著 • 上一篇    下一篇

丙烯酰胺诱导小鼠淋巴瘤细胞tk基因突变的研究

袁 健;刘胜学;曹 佳;熊 燕   

  1. 第三军医大学军事预防医学院卫生毒理学教研室,重庆 400038
  • 收稿日期:2004-07-21 修回日期:2004-12-13 出版日期:2005-07-30 发布日期:2005-07-30
  • 通讯作者: 曹 佳

Acrylamide Induce tk Gene Mutation in Mouse Lymphoma Cells

YUAN Jian;LIU Sheng-xue; CAO Jia;XIONG Yan   

  1. Department of Hygiene Toxicology, College of military Preventive Medicine, Third Military Medical University, Chongqing 400038,China
  • Received:2004-07-21 Revised:2004-12-13 Online:2005-07-30 Published:2005-07-30
  • Contact: CAO Jia

摘要: 背景与目的: 研究丙烯酰胺(Acrylamide,AA)对小鼠淋巴瘤L5178Y3.2.7c-tk+/-细胞tk基因突变频率的影响。材料与方法: 使用丙烯酰胺对L5178Y细胞进行梯度染毒,分别进行细胞毒性,细胞接种效率,相对悬浮生长率和突变频率的测定。结果: 随着AA剂量的增加,L5178Y细胞的相对存活率和悬浮生长率均明显降低。在150~750 μg/ml范围内诱导L5178Y细胞tk基因的突变频率高于自发突变频率1~9倍,表明具有较强的致突变性。结论: AA对L5178Y细胞具有明显的细胞毒性,并可以诱导tk基因的突变。

关键词: 丙烯酰胺, tk位点, 致突变作用, L5178Y细胞

Abstract: BACKGROUND & AIM: To investigate the effect of acrylamide(AA) on the tk gene of mouse lymphoma cells. MATERTAL AND METHODS: L5178Y cells were treated with AA at different concentrations. Determination of cytotoxicity, cell inoculation efficiency, relative survival rate and mutation frequency was performed. RESULTS: The relative survival rate and suspension growth rate of L5178Y cells decreased significantly with the increasing doses of AA. The mutation frequency of tk gene induced by AA(150~750 μg/ml) was 1~9 times higher than that of spontaneous mutation frequency of L5178Y cells. CONCLUSION: AA have obvious cytotoxic and mutagenic effects on tk gene in L5178Y cell.

Key words: acrylamide, tk locus, mutagenesis, L5178Y cell