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首页> 外文期刊>Journal of biochemical and molecular toxicology >Metabolism of the antibacterial triclocarban by human epidermal keratinocytes to yield protein adducts
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Metabolism of the antibacterial triclocarban by human epidermal keratinocytes to yield protein adducts

机译:人表皮角质形成细胞对抗菌三氯卡班的代谢产生蛋白质加合物

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摘要

Previous studies of triclocarban suggest that its biotransformation could yield reactive metabolites that form protein adducts. Since the skin is the major route of triclocarban exposure, present work examined this possibility in cultured human keratinocytes. The results provide evidence for considerable biotransformation and protein adduct formation when cytochrome P450 activity is induced in the cells by 2,3,7,8-tetrachlorodibenzo-p-dioxin, a model Ah receptor ligand. Since detecting low adduct levels in cells and tissues is difficult, we utilized the novel approach of accelerator mass spectrometry for this purpose. Exploiting the sensitivity of the method, we demonstrated that a substantial portion of triclocarban forms adducts with keratinocyte protein under the P450 inducing conditions employed.
机译:先前对三氯卡班的研究表明,其生物转化可产生形成蛋白质加合物的反应性代谢产物。由于皮肤是三氯卡班暴露的主要途径,因此目前的工作检查了培养的人角质形成细胞中的这种可能性。该结果提供了当2,3,7,8-四氯二苯并-p-二恶英(一种模型Ah受体配体)在细胞中诱导细胞色素P450活性时可观的生物转化和蛋白质加合物形成的证据。由于难以检测细胞和组织中的低加合物水平,因此我们为此目的利用了新型的加速器质谱方法。利用该方法的敏感性,我们证明了三氯卡班的大部分在所采用的P450诱导条件下与角质形成细胞蛋白形成加合物。

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