Publication details

Enantioselective effects of alpha-hexachlorocyclohexane (HCH) isomers on androgen receptor activity in vitro.

Authors

PAVLÍKOVÁ Nela BLÁHOVÁ Lucie KLÁN Petr BATHULA R. B. SKLENÁŘ Vladimír GIESY J. BLÁHA Luděk

Year of publication 2012
Type Article in Periodical
Magazine / Source Chemosphere
MU Faculty or unit

Faculty of Science

Citation
Doi http://dx.doi.org/10.1016/j.chemosphere.2011.08.052
Field Environment influence on health
Keywords Anti-androgenicity; Optical isomers; Pesticide; Hexachlorocyclohexane
Description In the present study we separated two alpha-HCH enantiomers by preparative HPLC and studied their activities towards androgen receptor (AR). There was no direct effect of alpha-HCH on AR but both isomers significantly suppressed the activity of AR in co-exposure with the natural ligand dihydrotestosterone. One of the enantiomers appeared to be more active at lower concentration, which was also supported by the molecular modeling calculations with AR that showed a slight difference in estimated free energy of binding and inhibition constant between two enantiomers. Although studies with other pesticides demonstrated strong enantioselective differences in toxicity, the present research shows rather minor differences in modulations of AR by both alpha-HCH enantiomers.
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