title: Immune induction of Ia antigens in activated T cells and in kidney epithelial cells in mice.
abstract: A rat monoclonal antibody against mouse Ia antigens was used to investigate the induction of Ia expression by activated T cells and renal epithelial cells during immune responses. The induction of low levels of surface Ia on activated helper and cytotoxic/suppressor T-cell phenotypes was directly demonstrated by differential fluorescence staining. Renal epithelial cells were observed to become strongly Ia-positive after primary immunization with alum-precipitated protein antigen, or after secondary challenge with the soluble antigen used for priming.
mesh_terms: D000818:Animals; D004848:Epithelium / Q000276:immunology; D005260:Female; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D007668:Kidney / Q000276:immunology*; D007687:Kidney Tubules, Proximal / Q000276:immunology; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C; D013601:T-Lymphocytes / Q000276:immunology*; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D000949:Histocompatibility Antigens Class II