title: Cell membrane perturbation of resting T cells and thymocytes causes display of activation antigens.
abstract: Three human lymphocyte antigens recognized by monoclonal antibodies OKIa1, OKT9, and OKT10 were found to be minimally represented on resting peripheral T cells (all three) and thymocytes (OKIa1 and OKT9). These antigens, which are present on "activated" T cells, were promptly displayed on "resting" T cells or thymocytes following cross-linking of surface-bound monoclonal antibody by horse alpha-mouse IgG. These experiments suggested that membrane perturbations may induce the expression of certain antigens that are normally present in an unexpressed form in resting cells.
mesh_terms: D000911:Antibodies, Monoclonal; D000954:Antigens, Surface / Q000276:immunology*; D002462:Cell Membrane / Q000276:immunology*; D005434:Flow Cytometry; D005455:Fluorescent Antibody Technique; D006801:Humans; D007074:Immunoglobulin G; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000954:Antigens, Surface; D007074:Immunoglobulin G