Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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Year : 2008  |  Volume : 12  |  Issue : 2  |  Page : 45-50

Lymphocyte subpopulation in healthy and diseased gingival tissue

Department of Periodontics, Ragas Dental College and Hospital, Chennai., India

Correspondence Address:
Avaneendra Talwar
Department of Periodontics, Ragas Dental College and Hospital, 2/102, East Coast Road, Uhandi, Chennai - 600 119.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-124X.44091

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In this study, infiltrating lymphocytes subpopulation in gingival sections of healthy, inflamed, and periodontitis lesions was investigated. A set of cluster of differentiation (CD) antigen specific monoclonal/polyclonal antibodies to detect different cell types within the tissues was used. These included anti-CD3 (pan T-cell), anti-CD45RO (memory T-cell), anti-CD20 (B-cell), and kappa light chain (plasma cells). Biopsies of gingival tissue were obtained from 17 patients who had clinically healthy gingiva, from 18 patients with gingivitis, and 17 patients with periodontitis. A significantly greater proportion of T-cells (P < 0.00) was observed in healthy gingival and gingivitis tissue samples compared to periodontitis tissue samples. In addition, a greater proportion of B-cells was observed in periodontitis lesions than in the gingival lesions (P < 0.00). The memory T-cells and the kappa light-chain plasma cells were present in both healthy and diseased tissues, suggestive of previous activation by periodontal pathogenic microorganisms. In conclusion, these differences in the relative proportions of B- and T-cells may reflect a difference in the immunopathology of periodontitis and gingivitis lesions.

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