Title: The Use of Metabolising Systems for In Vitro Testing of Endocrine Disruptors
Authors: JACOBS MIRIAMJANSSENS WalterBERNAUER UlrikeBRANDON EstherCOECKE SandraCOMBES RobertEDWARDS PFREIDIG AFREYBERGER AKOLANCZYK RMCARDLE CMEKENYAN OSCHMIEDER PSHRADER TTAKEYOSHI MVAN DER BERG B
Citation: CURRENT DRUG METABOLISM vol. 9 no. 8 p. 796-826
Publisher: BENTHAM SCIENCE PUBL LTD
Publication Year: 2008
JRC N°: JRC38139
ISSN: 1389-2002
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC38139
Type: Articles in Journals
Abstract: Legislation and draft proposals in for instance Europe, Japan and the USA require that chemicals are tested for their ability to disrupt the hormonal systems of mammals. Chemicals found to test positive are considered to be endocrine active substances (EAS) and may be putative endocrine disruptors (EDs). To date, there is still little or no experience with incorporating metabolic and toxicokinetic aspects into in vitro tests for EAS. This is a situation in sharp contrast to genotoxicity testing, where in vitro tests are routinely conducted with and without metabolic capacity. Originally prepared for the Organisation of Economic Cooperation and Development (OECD), this detailed review paper reviews why in vitro assays for EAS should incorporate mammalian systems, and indicates how this could be done. The background to ED testing, the available test methods, and the role of mammalian metabolism in the activation and the inactivation of both endogenous and exogenous steroids are described. The available types of systems are compared, and the potential problems in incorporating systems in in vitro tests for EAS, and how these might be overcome, are discussed. Lastly, some recommendations for future activities are made.
JRC Institute:Institute for Health and Consumer Protection

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