title: Suppression by relevant allergen of the spontaneous in vitro production of rye group I specific IgE antibodies by human peripheral blood lymphocytes.
abstract: The production in vitro of rye Group I specific IgE antibodies (rye I specific IgE Ab) by human peripheral blood lymphocytes (PBL) was examined. A sensitive enzyme-linked immunosorbent assay was developed which allowed the detection of rye I specific IgE Ab without interference from other immunoglobulin classes. A significant net synthesis of rye I specific IgE Ab by PBL from atopic subjects was detected only during the pollen season, which could not be observed with PBL from non-atopic donors whenever tested. This active synthesis in vitro of IgE antibodies by PBL from atopic patients in season was suppressed when PBL were pre-incubated with the relevant antigen. Furthermore, we are reporting data suggesting an inhibition of the passive release of preformed rye I specific IgE Ab from cells by the specific allergen.
mesh_terms: D000918:Antibody Specificity; D002523:Edible Grain / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007108:Immune Tolerance; D007073:Immunoglobulin E / Q000096:biosynthesis*; D008214:Lymphocytes / Q000276:immunology*; D011852:Radioallergosorbent Test; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology*; D012621:Seasons; D012434:Secale / Q000276:immunology*
chemical_list: D007073:Immunoglobulin E