Anti-androgenic activities of environmental pesticides in the MDA-kb2 reporter cell line.

Abstract : Pesticides have been suspected to act as endocrine disruptive compounds (EDCs) through several mechanisms of action, however data are still needed for a number of currently used pesticides. In the present study, 30 environmental pesticides selected from different chemical classes (azole, carbamate, dicarboximide, oganochlorine, organophosphorus, oxadiazole, phenylureas, pyrazole, pyrimidine, pyrethroid and sulfonylureas) were tested for their ability to alter in vitro the transcriptional activity of the androgen receptor in the MDA-kb2 reporter cell line. The responsiveness of the system was checked by using a panel of reference ligands of androgen and glucocorticoid receptors. When tested alone at concentrations up to 10 muM, none of the studied pesticides were able to induce the reporter gene after a 18 hour exposure. Conversely, co-exposure experiments with 0.1 nM dihydrotestosterone (DHT) allowed identifying 15 active pesticides with IC(50) ranging from 0.2 muM for vinclozolin to 12 muM for fenarimol. Fipronil and bupirimate were here newly described for their AR antagonistic activity.
Document type :
Journal articles
Complete list of metadatas

Cited literature [35 references]  Display  Hide  Download

https://hal-ineris.archives-ouvertes.fr/ineris-00511869
Contributor : Selim Aït-Aïssa <>
Submitted on : Thursday, August 26, 2010 - 2:45:43 PM
Last modification on : Thursday, August 26, 2010 - 5:19:27 PM
Long-term archiving on : Monday, November 29, 2010 - 11:43:24 AM

File

AitAissa-TIV-accepted.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

S. Aït-Aïssa, S. Laskowski, N. Laville, J.-M. Porcher, F. Brion. Anti-androgenic activities of environmental pesticides in the MDA-kb2 reporter cell line.. Toxicology in Vitro, Elsevier, 2010, epub ahead of print. ⟨10.1016/j.tiv.2010.08.014⟩. ⟨ineris-00511869⟩

Share

Metrics

Record views

282

Files downloads

544