首页> 外文期刊>The Journal of toxicological sciences >A comparative study of gene expression profiles in rat liver after administration of alpha-hexachlorocyclohexane and lindane.
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A comparative study of gene expression profiles in rat liver after administration of alpha-hexachlorocyclohexane and lindane.

机译:给予α-六氯环己烷和林丹后大鼠肝脏中基因表达谱的比较研究。

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摘要

Alpha-hexachlorocyclohexane (alpha-HCH) is a stereoisomer of gamma-HCH, the active ingredient of lindane (> 99% gamma-HCH). In the present study, cDNA microarray technology was employed to identify changes in gene expression associated with toxicity in livers of male Fischer 344 rats after treatment with alpha-HCH (2, 20 mg/kg/day) and lindane (1, 10 mg/kg/day) by daily oral gavage for up to 28 days. Liver samples were obtained after 1, 3, 7, 14 and 28 days and compared for gene expression profiles. The dose of the alpha-HCH was higher than that of lindane and toxicity was greater, but the numbers of probe sets with differences in expression were fewer for the alpha-HCH-treated group except on Day 3. Only very few probe sets with differences in expression overlapped between alpha-HCH and lindane at each time point and the gene expression profiles were very dissimilar. Important liver-based differences in expression between alpha-HCH and lindane might possibly account for hepato-carcinogenicity of alpha-HCH.
机译:α-六氯环己烷(α-HCH)是γ-HCH(林丹的活性成分,> 99%γ-HCH)的立体异构体。在本研究中,采用cDNA微阵列技术鉴定了用甲型六氯环己烷(2,20 mg / kg /天)和林丹(1,10 mg /天)处理的Fischer 344雄性大鼠肝脏毒性相关基因表达的变化。每天经口灌胃长达28天。在1、3、7、14和28天后获得肝脏样品,并比较基因表达谱。甲型六氯环己烷的剂量高于林丹剂量,毒性更大,但除第3天外,甲型六氯环己烷治疗组的表达差异探针组数量较少。在每个时间点,甲型六氯环己烷和林丹之间的表达重叠,基因表达谱非常不同。甲型六氯环己烷和林丹之间基于肝脏的重要表达差异可能解释了甲型六氯环己烷的肝致癌性。

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