title: Leukocyte subpopulations and natural killer activity in endometriosis.
abstract: OBJECTIVE
  To evaluate cell-mediated immunity in endometriosis.
  
  
  METHODS
  Peritoneal fluid and peripheral blood samples from 19 women with macroscopic evidence of endometriosis and 26 controls were submitted to 2-color flow cytometric analysis to assess lymphocyte subsets, using various combinations of monoclonal antibodies. K562 cells were used in a routine assay by 51Cr release to measure the cytotoxicity of NK cells in the subjects' peripheral blood.
  
  
  RESULTS
  Suppressor T-cells were significantly increased and cytotoxic T-cells significantly decreased in both peritoneal fluid and peripheral blood of the women with endometriosis. NK activity in peripheral blood was decreased in endometriosis patients as compared with controls.
  
  
  CONCLUSIONS
  An alteration in cell-mediated immunity may be among the pathogenetic, or developing, factors in endometriosis.
authors.affiliation: Department of Obstetrics and Gynecology, School of Medicine, Keio University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Iwasaki
authors.forename: T
authors.initials: T
authors.lastname: Makino
authors.forename: T
authors.initials: T
authors.lastname: Maruyama
authors.forename: H
authors.initials: H
authors.lastname: Matsubayashi
authors.forename: S
authors.initials: S
authors.lastname: Nozawa
authors.forename: T
authors.initials: T
authors.lastname: Yokokura
mesh_terms: D000328:Adult; D015703:Antigens, CD / Q000032:analysis; D001202:Ascitic Fluid / Q000166:cytology; D003601:Cytotoxicity Tests, Immunologic; D003602:Cytotoxicity, Immunologic; D004715:Endometriosis / Q000097:blood / Q000276:immunology*; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D007111:Immunity, Cellular; D007694:Killer Cells, Natural / Q000276:immunology*; D016131:Lymphocyte Subsets / Q000276:immunology*
chemical_list: D015703:Antigens, CD