Characterization of the IgG antibody response to timothy grass pollen antigens.
The IgG and IgE antibody responses against timothy grass pollen antigen B (AgB) in several mouse strains were determined. Considerable variability in both responses was demonstrated, and (CBA/J X C57BL/6)F1 mice were selected for use in subsequent experiments. Anti-idiotypic-antibody-induced T suppressor cells almost completely suppressed AgB-specific IgE, but the IgG response was not altered. Further studies with photooxidized AgB (Ox-AgB) indicated that the IgG response was directed against an antigenic determinant expressed on both native antigen and Ox-AgB. Our data indicates that AgB possesses two distinct antigenic determinants, one that induces an IgE response, and one that induces an IgG response.
A
A
Malley
S J
SJ
Hopkins
K J
KJ
Turner
D000818:Animals; D000917:Antibody Formation; D004797:Enzyme-Linked Immunosorbent Assay; D000939:Epitopes; D007073:Immunoglobulin E / Q000096:biosynthesis; D007074:Immunoglobulin G / Q000096:biosynthesis*; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D006109:Poaceae; D011058:Pollen / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
D000939:Epitopes; D007074:Immunoglobulin G; D007073:Immunoglobulin E