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Based on previous systems for generating helper cells and factors from mouse spleen cell cultures, an in vitro system for the production and detection of human helper factors to the synthetic polypeptide antigens (T,G)-A--L and GAT10 was developed. The factors are made by human peripheral blood leucocytes and are antigen-specific, as judged both by functional criteria and specific binding and elution from antigen columns. Out of the first six volunteers studied two were high responders to (T,G)-A--L, but non-responders to GAT, two responders to GAT but not (T,G)-A--L. One subject made factors to both antigens and the sixth reacted to neither. The antigens chosen are known to be under MHC-linked immune response (Ir) gene control in all animal species tested, with some strains being responders while others are not. The selective responsiveness, different between individuals, thus suggests that the response to these antigens in man is under Ir gene control. Because of the small size of the sample initially studied and HLA typed, it was not surprising that there was no clear-cut association of response with any particular histocompatibility type at the HLA-A, B, C or D locus.

Type

Journal article

Journal

Clinical and experimental immunology

Publication Date

08/1979

Volume

37

Pages

328 - 338

Keywords

Antibody-Producing Cells, T-Lymphocytes, Cells, Cultured, Animals, Humans, Mice, Immunoglobulin M, HLA Antigens, Epitopes, Antibody Formation, Immunity, Maternally-Acquired, Genes, MHC Class II, Time Factors, Adult, Middle Aged, Male