title: Inhibition of IL-2 secretion and IL-2 receptor appearance of activated lymphocytes pretreated with hydroxylated sterols.
abstract: When murine BALB/c splenocytes are pretreated for 2 h with different concentrations of 25-hydroxycholesterol (25-HC) or 7 beta-hydroxycholesterol (7-HC), washed and stimulated either with irradiated C57BL/6 splenocytes or with Con A, IL-2 secretion is inhibited in a dose-dependent way as well as the subsequent cell proliferation. Using the same treatment and stimulation conditions, IL-2 receptor appearance on human T lymphocytes, as characterized by anti-Tac antibody binding, is also inhibited in a dose-dependent way. In contrast, the hydrophilic derivative of 7 beta-hydroxycholesterol, the 3.7 bishemisuccinate sodium salt (7-HC BHS), did not influence any of the 3 tested parameters.
mesh_terms: D000818:Animals; D006888:Hydroxycholesterols / Q000494:pharmacology*; D066298:In Vitro Techniques; D007376:Interleukin-2 / Q000096:biosynthesis*; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000187:drug effects* / Q000276:immunology; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D011971:Receptors, Immunologic / Q000187:drug effects* / Q000378:metabolism; D015375:Receptors, Interleukin-2
chemical_list: C041101:7-hydroxycholesterol-3,7-bis(hemisuccinate); D006888:Hydroxycholesterols; D007376:Interleukin-2; D011971:Receptors, Immunologic; D015375:Receptors, Interleukin-2; C011724:cholest-5-en-3 beta,7 alpha-diol; C007997:25-hydroxycholesterol