title: Acquisition of suppressive and natural killer-like activities associated with loss of alloreactivity in human "helper" T-lymphocyte clones.
mesh_terms: D002999:Clone Cells; D003114:Colony-Forming Units Assay; D003602:Cytotoxicity, Immunologic; D006801:Humans; D007108:Immune Tolerance; D007694:Killer Cells, Natural / Q000276:immunology*; D008213:Lymphocyte Activation; D013601:T-Lymphocytes / Q000145:classification; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*