The role of the CD8-positive subset of T cells in proliferative responses to soluble antigens. II. CD8-positive cells are not responsible for DR-associated differences in responsiveness to mumps and Coxsackie B4.
The role of CD8 (T8, Leu 2)-positive T lymphocytes in the proliferative T-lymphocyte response to mumps and Coxsackie B4 viral antigens in vitro was investigated. The frequency among enriched T-lymphocyte blasts of antigen-reactive T lymphocytes (ARTL) restricted by different DR-associated elements was investigated, using antigenic restimulation with allogeneic antigen-presenting cells in a limiting dilution assay. A decreased frequency of DR3-restricted and an increased frequency of DR4-restricted mumps and Coxsackie B4 ARTL were seen in the limiting dilution assay, whether or not HLA class I determinants were shared in the antigenic restimulation. Removal of CD8-positive cells did not increase the primary in vitro responsiveness to mumps and Coxsackie B4 viral antigens, and did not change the DR-associated differences in the frequency of ARTL seen in the limiting dilution assay.
D000938:Antigen-Presenting Cells / Q000276:immunology; D000945:Antigens, Differentiation, T-Lymphocyte; D000954:Antigens, Surface / Q000032:analysis; D000956:Antigens, Viral / Q000276:immunology; D029822:Enterovirus B, Human / Q000276:immunology; D006680:HLA Antigens / Q000276:immunology*; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D006801:Humans; D007156:Immunologic Memory; D008213:Lymphocyte Activation; D009109:Mumps virus / Q000276:immunology; D013601:T-Lymphocytes / Q000145:classification / Q000276:immunology*
D000945:Antigens, Differentiation, T-Lymphocyte; D000954:Antigens, Surface; D000956:Antigens, Viral; D006680:HLA Antigens; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II