杜青平,卢燕梅,郑莉娇,等.1,2,4- 三氯苯对斑马鱼肝细胞DNA 的损伤作用[J].广东农业科学,2015,42(13):130-134 |
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1,2,4- 三氯苯对斑马鱼肝细胞DNA 的损伤作用 |
Damage effects of 1,2,4-TCB on DNA of zebrafishhepatocyte measured by comet assay |
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DOI: |
中文关键词: 1,2,4- 三氯苯 彗星实验 斑马鱼 肝细胞 DNA 损伤 |
英文关键词: 1,2,4-TCB comet assay zebrafish hepatocyte DNA damage |
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中文摘要: |
为了研究1,2,4- 三氯苯(1,2,4-TCB)对斑马鱼(Danio retio)肝细胞DNA 的损伤作用,采用不同浓
度的1,2,4-TCB 溶液(0、1、5、10 mg/L)对体外培养肝细胞进行染毒,应用单细胞凝胶电泳(彗星实验)检测肝
细胞DNA 的损伤效应。结果发现,染毒2 h 后,与对照组相比,当1,2,4-TCB 浓度大于5 mg/L 时,各染毒组细胞
尾长、尾部DNA 百分率均极显著升高,即1,2,4-TCB 染毒引起了肝细胞DNA 的严重断裂;随着1,2,4-TCB 浓
度的增加,DNA 损伤程度加剧,细胞尾长、尾部DNA 百分率及尾距与1,2,4-TCB 染毒浓度呈明显的剂量- 效应
关系。结果表明,水体中残留的1,2,4-TCB 可导致斑马鱼肝细胞DNA 损伤。 |
英文摘要: |
In order to explore the DNA damage in cells induced by 1,2,4-TCB,hepatocyte cells of zebrafish
cultured in vitro were exposed to different concentrations of 1,2,4-TCB(0,1,5,10 mg/L)for 2 h. Then,the comet
assay was applied to measure the DNA damage. Results showed that tail length,tail DNA rate of hepatocyte cells both
significantly increased when treated with more than 5 mg/L 1,2,4-TCB compared with the control group. Meanwhile,the
DNA damage increased gradually with the increase of 1,2,4-TCB concentration. There was an obvious dose relationship
between 1,2,4-TCB concentration and DNA damage(tail length,tail DNA rate,tail moment). It was concluded that 1,
2,4-TCB could induce DNA damage in hepatocyte cells of zebrafish |
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