title: Pertinent cell population to characterize periodontal disease.
abstract: The purpose of this in situ study is to quantify the inflammatory cell subsets and the area fraction (AA%) occupied by collagen fibers in human healthy and diseased (four different stages) gingival connective tissue in order to establish a possible correlation between periodontal disease resulting in collagen breakdown and specific inflammatory cell subsets. Paraffin gingival tissue sections from eight healthy controls (group 0), 10 patients with gingivitis (group 1), 10 patients with moderate periodontitis (group 2) and 10 patients with severe periodontitis (group 3) were immunohistochemically investigated using antibodies against CD-45+, CD-3+, CD-8+, CD-20+, CD-68+, and EMA+ (plasma cells). The AA% occupied by gingival collagen fibers significantly decreased from 54.12% in group (0) to 38.58% in group (1), to 31.87% in group (2), and to 25.46% in group (3). In progressive lesions of periodontal disease, CD-3(+) and CD-8+ cell numbers were increased in early stages within the connective tissue, while CD-20+ cell numbers were increased only in late stages. On the other hand, EMA+, CD-68+ and CD-45+ cell numbers were progressively increased from group (0) to group (3). We demonstrated that CD-68+ monocyte/macrophages, CD-45+ leukocyte common antigen and notably EMA+ plasma cells are pertinently correlated with the severity of periodontal disease and related collagen breakdown.
authors.affiliation: Department of Oral Surgery, Faculty of Dental Medicine, St Joseph University, P.O. Box 17-5208, Beirut 1104-2020, Lebanon. ronald.younes@usj.edu.lb
authors.forename: R
authors.initials: R
authors.lastname: Younes
authors.forename: C
authors.initials: C
authors.lastname: Ghorra
authors.forename: S
authors.initials: S
authors.lastname: Khalife
authors.forename: S
authors.initials: S
authors.lastname: Igondjo-Tchen-Changotade
authors.forename: M
authors.initials: M
authors.lastname: Yousfi
authors.forename: C
authors.initials: C
authors.lastname: Willig
authors.forename: K
authors.initials: K
authors.lastname: Senni
authors.forename: G
authors.initials: G
authors.lastname: Godeau
authors.forename: N
authors.initials: N
authors.lastname: Naaman
mesh_terms: D000293:Adolescent; D000328:Adult; D015703:Antigens, CD / Q000032:analysis / Q000276:immunology; D018951:Antigens, CD20 / Q000032:analysis / Q000276:immunology; D017252:CD3 Complex / Q000032:analysis / Q000276:immunology; D016827:CD8 Antigens / Q000032:analysis / Q000276:immunology; D016022:Case-Control Studies; D003094:Collagen / Q000276:immunology* / Q000378:metabolism; D005109:Extracellular Matrix / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D005260:Female; D005881:Gingiva / Q000737:chemistry / Q000276:immunology / Q000473:pathology; D005891:Gingivitis / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D017493:Leukocyte Common Antigens / Q000032:analysis / Q000276:immunology; D008264:Macrophages / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009000:Monocytes / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D010510:Periodontal Diseases / Q000276:immunology* / Q000473:pathology*; D010518:Periodontitis / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D010950:Plasma Cells / Q000276:immunology / Q000378:metabolism / Q000473:pathology; D055815:Young Adult
chemical_list: D015703:Antigens, CD; D018951:Antigens, CD20; D017252:CD3 Complex; D016827:CD8 Antigens; D003094:Collagen; D017493:Leukocyte Common Antigens