Estrogenic properties of 3,9-dihydroxybenz[a]anthracene, a potential metabolite of benz[a]anthracene.
The estrogen receptor binding properties of 3,9-dihydroxybenz[a]anthracene (3,9-diOHBA) were determined in uterine cytosol of immature Sprague-Dawley rats by competitive binding experiments with [3H]estradiol and sucrose density centrifugation. 3,9-DiOHBA inhibited estradiol binding to the 8S binding protein at a concentration (1.2 X 10(-5) M) approximately equal to that of nafoxidine-HCl (3 X 10(-5) M) required to inhibit estradiol-specific binding, and bioassay for estrogenic activity substantiated this finding.
D015127:9,10-Dimethyl-1,2-benzanthracene / Q000378:metabolism; D000818:Animals; D001551:Benz(a)Anthracenes / Q000378:metabolism*; D001667:Binding, Competitive; D003600:Cytosol / Q000378:metabolism; D004958:Estradiol / Q000378:metabolism; D005260:Female; D051381:Rats; D011960:Receptors, Estrogen / Q000378:metabolism*; D014599:Uterus / Q000378:metabolism*
D001551:Benz(a)Anthracenes; D011960:Receptors, Estrogen; D004958:Estradiol; D015127:9,10-Dimethyl-1,2-benzanthracene