Document 0789 DOCN M9460789 TI Adhesion molecule expression in chronic inflammatory periodontal disease tissue. DT 9404 AU Gemmell E; Walsh LJ; Savage NW; Seymour GJ; Department of Dentistry, University of Queensland, Australia. SO J Periodontal Res. 1994 Jan;29(1):46-53. Unique Identifier : AIDSLINE MED/94157731 AB Differences in lymphocyte populations have been demonstrated in gingivitis and periodontitis lesions. A differential expression of adhesion molecules may play a role in lymphocyte trafficking in these tissues. An indirect avidin biotin immunoperoxidase technique was used to stain a range of adhesion molecules in tissue sections of 21 gingival biopsies from both gingivitis and periodontitis subjects. These specimens were placed into three groups according to the size of the infiltrate. ICAM-1, PECAM-1 and LECAM-1 expression on mononuclear cells in the inflammatory infiltrates increased significantly with increasing size of infiltrate. Approximately 50% of these mononuclear cells were LFA-1+ and CD29+. When specimens were grouped according to their putative disease status there were no significant differences between mononuclear cell adhesion molecule expression in small infiltrates from either gingivitis or adult periodontitis subjects. This was also the case with larger lesions from both clinical groups. Therefore there does not appear to be a differential expression of adhesion molecules on lymphocytes in gingivitis and periodontitis tissue. Endothelial cells were positive for ICAM-1, PECAM-1, CD29, GMP-140 but negative for ELAM-1. Keratinocyte expression of ICAM-1 increased with increasing size of infiltrate although in heavy infiltrates, cells in the region of the junctional epithelium which were positive in small lesions, became ICAM-1 negative. The upper layers of the oral epithelium were positive for LECAM-1 in small infiltrates and with increasing size of infiltrate, the lower layers and many of the sulcular and junctional epithelium keratinocytes were positive.(ABSTRACT TRUNCATED AT 250 WORDS) DE Antibodies, Monoclonal Antigens, CD/ANALYSIS Antigens, Differentiation, Myelomonocytic/ANALYSIS Cell Adhesion Molecules/ANALYSIS/*IMMUNOLOGY Cell Communication Chronic Disease CD4-CD8 Ratio Endothelium/CYTOLOGY/IMMUNOLOGY Epithelial Attachment/CYTOLOGY/IMMUNOLOGY Epithelium/CYTOLOGY/IMMUNOLOGY Gingivitis/*IMMUNOLOGY Immunoenzyme Techniques Keratinocytes/IMMUNOLOGY Lymphocyte Function-Associated Antigen-1/ANALYSIS Periodontitis/*IMMUNOLOGY Support, Non-U.S. Gov't JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).