title: Enhancement of IgE antibody production by ovalbumin aerosol in mice.
abstract: The effect of aerosolized ovalbumin (OA) on the induction of IgE antibody production was investigated in BALB/c mice. Enhancement of anti-OA IgE antibody production was obtained after the administration of 10 micrograms OA in mice preexposed to 1% aerosolized OA for 6 or 30 min, and after the administration of 1 microgram OA in mice preexposed to aerosolized OA for 30 min. IgE antibody production could also be induced by preexposure to aerosolized OA at a concentration as low as 0.1%. A carrier effect was observed by preexposure to aerosolized OA using a hapten-carrier system. In the latter system, whole body irradiation (200 R) could not enhance IgE response, suggesting that irradiation-sensitive suppressor T cells might be generated in insufficient amount or not at all by aerosolized OA. Preexposure to aerosolized dinitrophenol-OA could not enhance anti-dinitrophenol IgE response. These results suggest that the exposure to aerosolized antigen primed preferentially T helper cells.
mesh_terms: D000336:Aerosols; D000818:Animals; D000888:Antibodies, Anti-Idiotypic / Q000096:biosynthesis*; D000917:Antibody Formation; D007073:Immunoglobulin E / Q000276:immunology*; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D010047:Ovalbumin / Q000008:administration & dosage*; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D000336:Aerosols; D000888:Antibodies, Anti-Idiotypic; D007073:Immunoglobulin E; D010047:Ovalbumin