title: Estrogen receptors and estrogen-inducible progestin receptors in the sexual skin of the monkey.
abstract: Estrogen-binding macromolecules were identified in sexual skin cytosol and nuclear fractions from female Japanese monkeys (Macaca fuscata fuscata), by sucrose-glycerol gradient analysis and dextran-coated charcoal adsorption technique. Furthermore, using the highly potent synthetic progestin, R5020 (17,21-dimethyl-19-nor-4,9-pregnadiene-3,20-dione; promegestone), progestin-binding macromolecules were detected in sexual skin cytosols from ovariectomized estrogen-primed monkeys. Both cytosol components sedimented at the 8S region on sucrose-glycerol gradients and had a high affinity for the respective steroids, and competition studies showed a specificity for estrogenic, or progestational compounds. The concentration of cytosol progestin receptors was markedly increased with the elevated level of nuclear estrogen receptors following estrogen priming. The above results demonstrate the existence of cytosol and nuclear estrogen receptor sites, and estrogen-induced progestin receptors in the sexual skin of the female monkeys.
mesh_terms: D000005:Abdomen; D000818:Animals; D003600:Cytosol / Q000378:metabolism; D004958:Estradiol / Q000494:pharmacology*; D005260:Female; D005836:Genitalia, Female; D007700:Kinetics; D008251:Macaca; D008321:Mammary Glands, Animal; D009928:Organ Specificity; D011960:Receptors, Estrogen / Q000378:metabolism*; D011980:Receptors, Progesterone / Q000187:drug effects / Q000378:metabolism*; D012867:Skin / Q000187:drug effects / Q000378:metabolism*
chemical_list: D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D004958:Estradiol