title: Suppressive activity of a macrolide antibiotic, roxithromycin on co-stimulatory molecule expression on mouse splenocytes in vivo.
abstract: The influence of roxithromycin (RXM) on the expression of co-stimulatory molecules, CD40, CD80 and CD86, was examined in vivo. When BALB/c mice were immunized intraperitoneally with two doses of dinitrophenylated ovalbumin (DNP-OVA) at 1 week intervals, intraperitoneal administration of RXM at 250 microg/kg once a day for 14 days strongly suppressed IgE contents in sera obtained from mice 22 days after the first immunization. In addition, RXM treatment of mice suppressed endogenous IL-4 contents in aqueous spleen extracts, which were enhanced by DNP-OVA immunization. We next examined the influence of RXM on co-stimulatory molecule expression on splenic lymphocytes. RXM treatment of the immunized mice caused suppression of CD40 expression, but this treatment did not affect CD80 and CD86 expression.
authors.affiliation: First Department of Internal Medicine, Showa University School of Medicine, Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawazu
authors.forename: M
authors.initials: M
authors.lastname: Kurokawa
authors.forename: K
authors.initials: K
authors.lastname: Asano
authors.forename: A
authors.initials: A
authors.lastname: Mita
authors.forename: M
authors.initials: M
authors.lastname: Adachi
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D015703:Antigens, CD / Q000096:biosynthesis*; D001402:B-Lymphocytes / Q000166:cytology / Q000187:drug effects / Q000276:immunology; D018122:B7-1 Antigen / Q000096:biosynthesis*; D051940:B7-2 Antigen; D019013:CD40 Antigens / Q000096:biosynthesis*; D002478:Cells, Cultured; D007073:Immunoglobulin E / Q000096:biosynthesis; D015847:Interleukin-4 / Q000096:biosynthesis; D008562:Membrane Glycoproteins / Q000096:biosynthesis*; D051379:Mice; D008807:Mice, Inbred BALB C; D015575:Roxithromycin / Q000494:pharmacology*; D013154:Spleen / Q000166:cytology / Q000187:drug effects* / Q000276:immunology
chemical_list: D000900:Anti-Bacterial Agents; D015703:Antigens, CD; D018122:B7-1 Antigen; D051940:B7-2 Antigen; D019013:CD40 Antigens; C497965:Cd86 protein, mouse; D008562:Membrane Glycoproteins; D015847:Interleukin-4; D015575:Roxithromycin; D007073:Immunoglobulin E