title: Differentiation stage of natural killer cell-lineage lymphoproliferative disorders based on phenotypic analysis.
abstract: In the normal developmental pathway of natural killer (NK) cells, pre-NK cells express CD161, immature NK cells express CD161 and CD56, and mature NK cells express CD161, CD56 and CD94. To identify the normal counterpart of NK cells from which neoplastic cells originate, surface antigens were analysed. Blastic NK-cell lymphoma/leukaemia lacked CD94 and CD161 but had CD56. Aggressive NK-cell leukaemia/lymphoma and nasal NK-cell lymphoma, although morphologically immature, expressed both CD56 and CD94 and strong NK activity. Cells from chronic NK lymphocytosis expressed CD56 and CD94.
authors.affiliation: Department of Haematology, Juntendo University of School of Medicine, Tokyo, Japan. klmori@med.juntendo.ac.jp
authors.forename: K L
authors.initials: KL
authors.lastname: Mori
authors.forename: M
authors.initials: M
authors.lastname: Egashira
authors.forename: K
authors.initials: K
authors.lastname: Oshimi
mesh_terms: D000328:Adult; D000368:Aged; D015703:Antigens, CD / Q000032:analysis*; D000954:Antigens, Surface / Q000032:analysis; D019002:CD56 Antigen / Q000032:analysis*; D002454:Cell Differentiation; D002648:Child; D005260:Female; D006801:Humans; D016130:Immunophenotyping; D007694:Killer Cells, Natural / Q000276:immunology / Q000473:pathology*; D037181:Lectins, C-Type; D008232:Lymphoproliferative Disorders / Q000276:immunology / Q000473:pathology*; D008297:Male; D008562:Membrane Glycoproteins / Q000032:analysis*; D008875:Middle Aged; D055651:NK Cell Lectin-Like Receptor Subfamily B; D051920:NK Cell Lectin-Like Receptor Subfamily D
chemical_list: D015703:Antigens, CD; D000954:Antigens, Surface; D019002:CD56 Antigen; C527203:KLRB1 protein, human; C497869:KLRD1 protein, human; D037181:Lectins, C-Type; D008562:Membrane Glycoproteins; D055651:NK Cell Lectin-Like Receptor Subfamily B; D051920:NK Cell Lectin-Like Receptor Subfamily D