title: Protease inhibitor antipain reduces nuclear binding of estrogen-receptor complex in MCF-7 breast tumor cells.
abstract: We have initiated studies to ascertain the effects of protease inhibitors on specific steroid hormonal-related events as they occur in cultured cells, in an attempt to identify hormone-related processes perturbed by these inhibitors. We report here that the presence of antipain during incubation of cultured MCF-7 breast tumor cells with estradiol-containing medium considerably reduces the extent of nuclear binding of the estradiol-receptor complex.
mesh_terms: D000976:Antipain / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000378:metabolism*; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism*; D004965:Estrogen Antagonists / Q000494:pharmacology; D004967:Estrogens / Q000378:metabolism*; D005260:Female; D006801:Humans; D009842:Oligopeptides / Q000494:pharmacology*; D011960:Receptors, Estrogen / Q000378:metabolism*
chemical_list: D004965:Estrogen Antagonists; D004967:Estrogens; D009842:Oligopeptides; D011960:Receptors, Estrogen; D000976:Antipain