title: Expression of ductal Fas antigen in sialoadenitis of Sjögren's syndrome.
abstract: OBJECTIVE
  The expression of Fas antigen on ductal epithelial cells of sialoadenitis was examined in patients with Sjögren's syndrome (SS) and in normal subjects.
  
  
  METHODS
  Minor salivary glands from the SS patients were examined by an immunohistochemical method using a new monoclonal antibody to the Fas antigen.
  
  
  RESULTS
  In two patients with severe sialoadenitis, Fas was strongly expressed on the ductal epithelial cells. By contrast, the Fas antigen was not seen in the minor salivary glands of normal subjects nor in those with mild sialoadenitis.
  
  
  CONCLUSIONS
  This finding suggests that the Fas antigen may play a role in the pathogenesis of sialoadenitis in SS by providing a specific target for cytotoxic T cells expressing the Fas ligand.
authors.affiliation: Department of Internal Medicine, Toho University School of Medicine, Sakura Hospital, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Matsumura
authors.forename: M
authors.initials: M
authors.lastname: Kagami
authors.forename: H
authors.initials: H
authors.lastname: Tomioka
authors.forename: E
authors.initials: E
authors.lastname: Tanabe
authors.forename: T
authors.initials: T
authors.lastname: Sugiyama
authors.forename: M
authors.initials: M
authors.lastname: Sueishi
authors.forename: A
authors.initials: A
authors.lastname: Nakajima
authors.forename: M
authors.initials: M
authors.lastname: Azuma
authors.forename: K
authors.initials: K
authors.lastname: Okumura
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D018987:Salivary Ducts / Q000276:immunology* / Q000473:pathology; D012469:Salivary Glands / Q000276:immunology / Q000473:pathology; D012793:Sialadenitis / Q000276:immunology*; D012859:Sjogren's Syndrome / Q000276:immunology* / Q000473:pathology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D019014:fas Receptor / Q000096:biosynthesis*
chemical_list: D019014:fas Receptor