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基于稳定转染的人雌激素受体-α转录激活测定的持久性有机污染物和对羟基苯甲酸酯的雌激素活性 (OECD TG 455)。

Estrogenic Activity of Persistent Organic Pollutants and Parabens Based on the Stably Transfected Human Estrogen Receptor-α Transcriptional Activation Assay (OECD TG 455).

机构信息

Health Effects Analysis Team, National Institute of Food and Drug Safety Evaluation, 643 Yeonje-ri, Gangoe-myeon, Cheongwon-gun, Chungbuk 363-951, Korea.

出版信息

Toxicol Res. 2011 Sep;27(3):181-4. doi: 10.5487/TR.2011.27.3.181.

Abstract

Screening of estrogenic activity on dichloro diphenyl trichloroethane (DDT), dichloro diphenyl dichloro ethylene (DDE), dieldrin, heptachlor, aldrin, chlordane, lindane, polybrominated diphenyl ethers (PBDE) and parabens was compared using Organization for Economic Cooperation and Development (OECD) test guideline 455 (TG455). The estrogenic activity of DDT was 58,000-fold (PC50, 1.67 × 10(-6) M) less than 17β-estradiol(E2) (PC50, 2.88 × 10(-11) M) but DDE, dieldrin, heptachlor, aldrin, chlordane, lindane and PBDE did not show any estrogenic activity in this assay system. In the case of paraben compounds, the rank of relative transcriptional activation (logRTA) was butyl paraben -1.63752 (PC50, 1.25 × 10(-7)M) > isobutyl paraben -2.34008 (PC50, 6.3 × 10(-7)M) > ethyl paraben -2.64016 (PC50, 1.26 × 10(-6) M) > isopropyl paraben -2.73993 (PC50, 1.58 × 10(-6)M) > propyl paraben -2.84164 (PC50, 2.0 × 10(-6) M). Our data suggest that OECD test guideline TG455 may be useful as a screening tool for potential endocrine disruptors.

摘要

采用经济合作与发展组织(OECD)测试指南 455(TG455)比较了二氯二苯三氯乙烷(DDT)、二氯二苯二氯乙烯(DDE)、狄氏剂、七氯、艾氏剂、氯丹、林丹、多溴联苯醚(PBDE)和对羟基苯甲酸酯类物质的雌激素活性。DDT 的雌激素活性比 17β-雌二醇(E2)(PC50,2.88×10(-11)M)低 58000 倍(PC50,1.67×10(-6)M),但 DDE、狄氏剂、七氯、艾氏剂、氯丹、林丹和 PBDE 在该检测系统中均未表现出任何雌激素活性。在对羟基苯甲酸酯类物质的情况下,相对转录激活的排名(logRTA)为:对羟基苯甲酸丁酯-1.63752(PC50,1.25×10(-7)M)>对羟基苯甲酸异丁酯-2.34008(PC50,6.3×10(-7)M)>对羟基苯甲酸乙酯-2.64016(PC50,1.26×10(-6)M)>对羟基苯甲酸异丙酯-2.73993(PC50,1.58×10(-6)M)>对羟基苯甲酸丙酯-2.84164(PC50,2.0×10(-6)M)。我们的数据表明,OECD 测试指南 TG455 可能可用作潜在内分泌干扰物的筛选工具。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5d98/3834384/602c7f6ec19c/toxicr-27-181-g001.jpg

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