title: 17 beta-carboxamide steroids: highly effective inhibitors of the phytohaemagglutinin mediated blastogenesis of normal human peripheral lymphocytes.
abstract: Several novel 17 beta-carboxamide analogues of dexamethasone were synthesized. The common precursor, 9-fluoro-16 alpha-methyl-11 beta,17-dihydroxy-3-oxo-1,4-androstadiene-17 beta-carboxylic acid, did not bind to the glucocorticoid receptors of rat liver and human spleen tumours. In addition, no inhibition of the mitogen-induced blastogenesis of cultured human peripheral lymphocytes was observed. The 17 beta-carboxamide analogues, however, bound with similar affinities to the glucocorticoid receptors of both tissues. They inhibited the mitogen-induced blastogenesis of peripheral lymphocytes, showing the same potency and same order of binding affinity as the natural glucocorticoids.
mesh_terms: D000818:Animals; D001667:Binding, Competitive / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D003600:Cytosol / Q000378:metabolism; D004247:DNA / Q000378:metabolism; D003907:Dexamethasone / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D005938:Glucocorticoids / Q000494:pharmacology; D006801:Humans; D066298:In Vitro Techniques; D008099:Liver / Q000378:metabolism; D008213:Lymphocyte Activation / Q000187:drug effects*; D008297:Male; D010835:Phytohemagglutinins / Q000037:antagonists & inhibitors*; D051381:Rats; D011919:Rats, Inbred Strains; D011965:Receptors, Glucocorticoid / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism
chemical_list: D005938:Glucocorticoids; D010835:Phytohemagglutinins; D011965:Receptors, Glucocorticoid; D003907:Dexamethasone; D004247:DNA; D013936:Thymidine