title: HNK-1 antibody detects an antigen expressed on neuroectodermal cells.
abstract: The HNK-1 antibody known to define a subpopulation of human lymphocytes with natural killer and killer cell activities was shown to detect a common neuroectodermal antigen. Most tumor lines and paraffin-embedded tumors and normal tissues of neuroectodermal origin were specifically stained by HNK-1. Lines and tissues of other derivations were negative except a trophoblastic tumor line and a percentage of Ewing's sarcomas, whose histogenesis is poorly understood. These data indicate that HNK-1 antibody could be of interest in clinical histopathology but cannot be considered as specific for a lymphocyte subset.
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology*; D000918:Antibody Specificity; D002460:Cell Line; D004475:Ectoderm / Q000276:immunology*; D000939:Epitopes / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D007124:Immunoenzyme Techniques; D008214:Lymphocytes / Q000276:immunology; D009380:Neoplasms, Nerve Tissue / Q000276:immunology; D009417:Nerve Tissue / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000939:Epitopes