Interaction of stilbene compounds with human and rainbow trout estrogen receptors.
Compounds with stilbene structures are widely used as pharmaceuticals and personal care products (PPCPs) and are present in plants. A suite of stilbene-related compounds, including PPCPs and plant-derived compounds were tested in vitro for interactions with the human and rainbow trout estrogen receptors and in vivo with rainbow trout using vitellogenin levels as a biomarker. Among the compounds with antagonistic activity, the common structural similarity was (in addition to the stilbene backbone) the presence of 4-hydroxy substitution. Stilbene-related compounds found to act as inhibitors at the estrogen receptor included the plant-derived compound resveratrol and two formulations of fluorescent whitening agents used in detergents, 4,4'-bis(2-sulfostyryl)biphenyl and diaminostilbene-1. In the yeast estrogenicity screening assay, the concentrations which caused a 50% inhibition in estrogenic response (IC50s) with the human estrogen receptor ranged from 2.56 x 10(-6) to 2.56 x 10(-6) M. In the rainbow trout estrogen receptor assay, the IC50s ranged from 7.75 x 10(-8) to 1.11 x 10(-5) M. However, in the in vivo rainbow trout vitellogenin assay, tamoxifen was the only stilbene of the compounds tested to have a significant effect as an inhibitor of estrogenicity.
Simmons
Denina Bobbie Dawn
DB
Watershed Ecosystems Graduate Program, Trent University, Peterborough, ON, Canada.
Trudeau
Vance Lionel
VL
Marlatt
Vicki Lee
VL
Moon
Thomas William
TW
Sherry
James P
JP
Metcalfe
Chris David
CD
D000818:Animals; D004305:Dose-Response Relationship, Drug; D004785:Environmental Pollutants / Q000737:chemistry / Q000494:pharmacology; D004958:Estradiol / Q000494:pharmacology; D020847:Estrogen Receptor Modulators / Q000737:chemistry / Q000494:pharmacology; D005260:Female; D005786:Gene Expression Regulation; D006801:Humans; D015394:Molecular Structure; D017686:Oncorhynchus mykiss / Q000378:metabolism*; D011960:Receptors, Estrogen / Q000819:agonists* / Q000037:antagonists & inhibitors*; D013267:Stilbenes / Q000737:chemistry / Q000494:pharmacology*; D014819:Vitellogenins / Q000378:metabolism
D004785:Environmental Pollutants; D020847:Estrogen Receptor Modulators; D011960:Receptors, Estrogen; D013267:Stilbenes; D014819:Vitellogenins; D004958:Estradiol