title: Requirement of HLA compatibility between T- and B-cells in mitogen-induced in vitro immunoglobulin production.
abstract: The necessity for human leukocyte antigen (HLA) compatibility in T- and B-cells in the differentiation of B-cells into immunoglobulin-producing cells (Ig cells) was studied in cultured human lymphocytes stimulated with pokeweed mitogen. We found that, despite the histocompatibility antigen difference, allogeneic T-cells from healthy donors could help B-cells to differentiate into immunoglobulin-producing cells to almost the same degree as autologous T-cells. However, T-cells from an apparently healthy subject whose sister had died of severe combined immunodeficiency did not collaborate with HLA-incompatible allogeneic B-cells in vitro, although her T-cells collaborated with autologous B-cells as well as B-cells from a brother with identical HLA-A, -B and -D. This indicates that the mechanism which in normal cases overcomes HLA antigen incompatibility was defective in this case. It further indicates that one of the mechanisms necessary in B- and T-cell interaction requires HLA compatibility.
mesh_terms: D000921:Antibody-Producing Cells / Q000166:cytology / Q000276:immunology*; D001402:B-Lymphocytes / Q000166:cytology / Q000276:immunology*; D002454:Cell Differentiation; D006680:HLA Antigens; D006648:Histocompatibility; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000276:immunology; D011043:Pokeweed Mitogens / Q000494:pharmacology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D006680:HLA Antigens; D011043:Pokeweed Mitogens