title: [Effects of suplatast tosilate (IPD-1151T) on antibody formations in mice].
abstract: We examined the effects of suplatast tosilate (IPD-1151T) on antibody formation in mice, and the following results were obtained: 1) IPD-1151T clearly increased the productions of IgM and IgG-hemolytic plaque forming cells (PFC) in mice immunized with sheep red blood cells (SRBC) when the agent was given p.o. for 5 days from the day of immunization. 2) IgM and IgG-PFC productions in old mice, 60 weeks of age, were clearly lower than those in adult mice, 10 weeks of age; and an oral administration of IPD-1151T significantly recovered the decayed PFC-production in the old mice. 3) IPD-1151T clearly suppressed the production of anti-dinitrophenyl (DNP)-IgE antibody in mice when the agent was given p.o. for 5 days from the day of immunization, whereas the agent did not affect anti-DNP-IgM and IgG antibody productions. 4) IPD-1151T did not affect the induction phase of the cellular immune reaction of picryl chloride-induced contact dermatitis and the SRBC-induced footpad reaction. Our present results suggest that IPD-1151T has a class-specific suppressive effect on the production of IgE antibody, but does not suppress the other immune responses.
authors.affiliation: Department of Pharmacology, Gifu Pharmaceutical University, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Matsuura
authors.forename: H
authors.initials: H
authors.lastname: Mori
authors.forename: H
authors.initials: H
authors.lastname: Nagai
authors.forename: A
authors.initials: A
authors.lastname: Koda
mesh_terms: D000818:Animals; D000917:Antibody Formation / Q000187:drug effects*; D000921:Antibody-Producing Cells / Q000276:immunology; D001190:Arylsulfonates / Q000494:pharmacology*; D004136:Dinitrobenzenes / Q000276:immunology; D004912:Erythrocytes / Q000276:immunology; D005260:Female; D007073:Immunoglobulin E / Q000096:biosynthesis; D007074:Immunoglobulin G / Q000096:biosynthesis; D007075:Immunoglobulin M / Q000096:biosynthesis; D008297:Male; D051379:Mice; D012756:Sheep; D013452:Sulfonium Compounds / Q000494:pharmacology*
chemical_list: D001190:Arylsulfonates; D004136:Dinitrobenzenes; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D013452:Sulfonium Compounds; D007073:Immunoglobulin E; C073028:suplatast tosilate