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彗星实验检测紫外线诱导的K562细胞DNA损伤 被引量:14

DNA Damage Induced by UV in K562 Cells Measured by Comet Assay
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摘要 背景与目的研究紫外线(Ultraviolet,UV)诱导K562细胞DNA损伤情况,评价彗星实验改良方法及分析参数的可靠性。材料与方法采用0.3mW/cm2UV以用不同时间(3、5、10、40、60、120、180、240s)照射K562细胞,诱导细胞DNA损伤,用彗星实验检测,CASP软件分析。结果尾长、彗星长、尾矩、Olive尾矩4个参数与紫外线照射时间有良好的时间依赖关系。结论0.3mW/cm2的紫外线照射K562细胞3s即可造成细胞DNA损伤,CASP分析软件可以用于彗星检测分析,其中尾长、彗星长、尾矩、Olive尾矩可作为彗星实验的分析指标,所改良的彗星实验系统可靠性较强,且基本上解决了实验中常见的脱胶现象,采图更方便。 BACKGROUND & AIM: This article exploved a modified method of comet assay from the Singh's alkaline comet assay and discussed the reliability of this method and the CASP software used to measure the DNA damage induced by UV light. MATERIAL AND METHODS: DNA damage of K562 cells induced by UV for different times (3 s, 5 s, 10 s,40 s,60 s, 120 s, 180 s,240 s) was measured by comet assay.The results were assayed by CASP. RESULTS: UV ( 0.3 mW/cm^2) induced a significant DNA damage (P 〈 0.01) when the results were assayed by the four parameters (tail length, comet length, tail moment, olive tail moment). CONCLUSION: The results suggested that the four parameters indicated a good time-dependent effect.The method which we developed and the four parameters were reliable.
出处 《癌变·畸变·突变》 CAS CSCD 2006年第5期400-403,共4页 Carcinogenesis,Teratogenesis & Mutagenesis
基金 国家自然科学基金(项目编号:20272035) 陕西师范大学校级重点项目(项目编号:995098) 西安文理学院专项科研基金(Y200531)
关键词 DNA损伤 单细胞凝胶电泳 紫外线 K562 DNA damage single cell gel electrophoresis Ultraviolet K562
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  • 1Ostling O, Johanson KJ. Microelectrophoretic study of radiation-induced DNA damages in individual. mammalian cells[J]. Biochem Biophys Res Commun, 1984, 123(1) :291 - 298.
  • 2Olive PL. Cell proliferation as a requirement for development of the contact effect in Chinese hamster V79 spheroids[J]. Radiat Res, 1989, 117(1) :79-92.
  • 3McKelvey-Martin VJ, Green MHL, Schmezer P, et al. The single cell gel electrophoresis assay (comet assay): A European review[J]. Murat Res, 1993,288(1) :47 - 63.
  • 4Fairbairn DW, Olive PL, O' Neill KL. The Comet assay: a comprehensive review[J] . Murat Res, 1995,339( 1 ) : 37 - 59.
  • 5Singh NP, McCoy MT, Tice RR,et al. A simple technique for quantification of low levels of DNA damage in individual cells[J]. Exp Cell Res, 1988, 175(1) : 184-191.
  • 6Tice RR, Agurell E, Anderson D, et al. Single cell gel/comet assay: guidelines for in vitro and in vivo genetic toxicology, testing[J]. Environ Mol Mutagen, 2000, 35(3):206 - 221.
  • 7Mohankumar MN, Janani S, Prabhu BK, et al. DNA damage and integrity of UV-induced DNA repair in lymphocytes of smokers analysed by the comet assay[J]. Mut Res, 2002,520(1-2) : 179 - 187.
  • 8杨军.DNA损伤选择性修复的分子机制[J].国外医学(遗传学分册),1994,17(6):288-291. 被引量:1
  • 9Stapleton AE. Ultraviolet radiation and plants: burning question[J]. Plant Cell, 1992,4(11) : 1353 - 1358.
  • 10齐浩,谭声江,马玉英,宋存牛.不同频率聚焦超声与血卟啉对人体肿瘤细胞的协同作用[J].中国科学(C辑),1998,28(5):477-480. 被引量:20

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