title: Dendritic cells in human squamous cell carcinoma of the oral cavity.
abstract: Dendritic cells (DCs) are antigen-presenting cells that initiate and modulate immune responses, including tumor immunity. In this study we examined, immunohistochemically, the distribution of DC subsets in the primary tumor, adjacent tissue and regional lymph nodes (RLNs) of patients with oral squamous cell carcinoma (OSCC). The numbers of S100+ and CD1a+ DCs in tissue adjacent to the primary tumor were greater in patients without metastasis to RLNs (PN- cases), compared with those with metastasis (PN+ cases), while greater numbers of CD83+ DCs in the primary tumors were found in PN+ cases. In the RLNs, the numbers of S100+ and CD1a+ DCs were less in PN+ cases than in PN- cases, while the numbers of CD83+ DCs were greater in PN+ cases compared with those in PN- cases. These results suggest that the distribution of DC subsets in OSCC may reflect the degree of tumor immunity induced in the host bearing OSCC.
authors.affiliation: 1st Department of Oral and Maxillofacial Surgery, Meikai University School of Dentistry, Sakado, Saitama, Japan. kenta@cb3.so-net.ne.jp
authors.forename: Kentaro
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Kaoru
authors.initials: K
authors.lastname: Kusama
authors.forename: Kohei
authors.initials: K
authors.lastname: Taguchi
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Ishikawa
authors.forename: Motoyoshi
authors.initials: M
authors.lastname: Okamoto
authors.forename: Jun
authors.initials: J
authors.lastname: Shimada
authors.forename: Hideaki
authors.initials: H
authors.lastname: Sakashita
authors.forename: Yoshiro
authors.initials: Y
authors.lastname: Yamamo
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000911:Antibodies, Monoclonal / Q000378:metabolism; D018949:Antigens, CD1 / Q000276:immunology / Q000378:metabolism; D002294:Carcinoma, Squamous Cell / Q000276:immunology* / Q000473:pathology; D003713:Dendritic Cells / Q000276:immunology / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008198:Lymph Nodes / Q000276:immunology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000276:immunology* / Q000473:pathology; D009367:Neoplasm Staging; D009418:S100 Proteins / Q000276:immunology / Q000378:metabolism
chemical_list: D000911:Antibodies, Monoclonal; D018949:Antigens, CD1; C419393:CD1a antigen; D009418:S100 Proteins; C110294:S100A1 protein