title: Subpopulations of human T lymphocytes. I. Studies in immunodeficient patients.
abstract: T lymphocytes with receptors for IgM(Tmu) and IgG(Tgamma) were examined in thirty patients with primary immunodeficiency and autoimmune disorders. Six out of twenty-seven patients with primary immunodeficiency had a low proportion of Tmu cells when compared with normal controls. Eight out of twenty-seven patients with primary immunodeficiency had an increased proportion of Tgamma cells. Two out of twenty-seven patients had both a low proportion of Tmu cells and a high proportion of Tgamma cells. The patient studied with severe combined immunodeficiency had a low proportion of both Tmu and Tgamma cells. Patients with Bruton-type agammaglobulinaemia, common variable immunodeficiency, thymoma and immunodeficiency syndrome and selective IgA deficiency demonstrated heterogeneity with regard to alterations in T-cell subpopulations.
mesh_terms: D001327:Autoimmune Diseases / Q000276:immunology*; D001666:Binding Sites, Antibody; D006801:Humans; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D007958:Leukocyte Count; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D007074:Immunoglobulin G; D007075:Immunoglobulin M