首页> 外文期刊>Mutation Research, C. Mutation Research Letters >A COMPARATIVE STUDY OF TK6 HUMAN LYMPHOBLASTOID AND L5178Y MOUSE LYMPHOMA CELL LINES IN THE IN VITRO MICRONUCLEUS TEST
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A COMPARATIVE STUDY OF TK6 HUMAN LYMPHOBLASTOID AND L5178Y MOUSE LYMPHOMA CELL LINES IN THE IN VITRO MICRONUCLEUS TEST

机译:TK6人淋巴母细胞和L5178Y小鼠淋巴瘤细胞系体外微核试验的比较研究

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摘要

Micronucleus induction was compared in human lymphoblastoid TK6 and mouse lymphoma L5178Y cell lines treated with model clastogens and spindle poisons, i.e., X-rays, methyl methanesulfonate, ethyl methanesulfonate, mitomycin C, colcemid, and vincristine. The spontaneous micronucleated cell (MNC) frequency was stable and reproducible in both cell lines. All clastogens and spindle poisons studied here induced micronuclei in both cell lines. They increased MNC frequency at lower concentrations or caused a greater increase at the same concentration in TK6 cells. These clastogens and spindle poisons, however, were also more toxic to TK6 than to L5178Y cells and when comparison was based on cytotoxicity, they showed more efficient MNC induction in L5178Y cells. In conclusion, neither cell line was superior to the other, and both of them can be used as target cells in the in vitro micronucleus assay.
机译:比较了用模型分裂原和梭形毒物(即X射线,甲磺酸甲酯,甲磺酸乙酯,丝裂霉素C,秋水仙碱和长春新碱)处理的人淋巴母细胞TK6和小鼠淋巴瘤L5178Y细胞系中的微核诱导。在两种细胞系中,自发性微核细胞(MNC)的频率均稳定且可重现。此处研究的所有酶原和纺锤体毒物均可诱导两种细胞系中的微核。它们在较低浓度下增加了MNC频率,或者在TK6细胞中在相同浓度下引起了更大的增加。然而,这些克拉斯蛋白酶原和纺锤体毒物对TK6的毒性也比对L5178Y细胞的毒性高,当基于细胞毒性进行比较时,它们在L5178Y细胞中的MNC诱导效率更高。总之,两种细胞系都不比另一种细胞优越,并且它们都可以用作体外微核试验中的靶细胞。

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