title: Modulation of Th2 type cytokine production from human peripheral blood leukocytes by a macrolide antibiotic, roxithromycin, in vitro.
abstract: The influence of a macrolide antibiotic, roxithromycin (RXM), on Th1 and Th2 cytokine productions from human peripheral blood T cells was examined under stimulation with co-stimulatory molecules. Peripheral blood T cells prepared from both healthy and allergic rhinitis donors were cultured in the presence of RXM on anti-CD3 mAb and anti-CD26 mAb-coated wells, anti-CD3 mAb and anti-CD28 mAb-coated wells, and anti-CD3 and PMA. T-cell proliferation, along with the concentration of interleukin (IL)-2, interferon (IFN)-gamma, IL-4 and IL-5 were measured. RXM did not affect T-cell proliferation induced by several ways of co-stimulatory activation as assessed by 3H-thymidine incorporation into DNA. RXM also had no effect on IL-2 and IFN-gamma secretion by T cells prepared from both healthy and allergic rhinitis donors. On the other hand, RXM markedly inhibited both IL-4 and IL-5 secretions under each of the co-stimulatory conditions in a dose-dependent manner. These results indicate that RXM inhibits specifically Th2 cytokine secretion from T cells induced by co-stimulatory molecule stimulations. This inhibitory action of RXM may be partially responsible for attenuating effect of the agent on the inflammatory diseases.
authors.affiliation: Department of Physiology, School of Medicine, Showa University, Tokyo, Japan. asanok@med.showa-u.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Asano
authors.forename: K
authors.initials: K
authors.lastname: Kamakazu
authors.forename: T
authors.initials: T
authors.lastname: Hisamitsu
authors.forename: H
authors.initials: H
authors.lastname: Suzaki
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D000911:Antibodies, Monoclonal; D015496:CD4-Positive T-Lymphocytes / Q000187:drug effects / Q000378:metabolism; D002455:Cell Division / Q000187:drug effects; D016207:Cytokines / Q000096:biosynthesis*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007962:Leukocytes / Q000187:drug effects / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology; D015575:Roxithromycin / Q000494:pharmacology*; D013268:Stimulation, Chemical; D018417:Th1 Cells / Q000187:drug effects / Q000378:metabolism; D018418:Th2 Cells / Q000187:drug effects / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D000911:Antibodies, Monoclonal; D016207:Cytokines; D015575:Roxithromycin