Influence of gingival crevicular washing on the expression of polymorphonuclear leukocyte membrane receptors before and after periodontal therapy
| Autor: | Andrea Fattorossi, Marcello Cattabriga, Carlo Di Murro, Raffaele D'Amelio, Giovanni Sergi, Michele Paolantonio, Vinicio Pedrazzoli, Anna Casciaro |
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| Rok vydání: | 1995 |
| Předmět: |
Adult
Male Receptors Peptide Neutrophils Phagocytosis Motility Gene Expression Receptors Cell Surface Neutrophil Activation Flow cytometry Cell surface receptor Cell Movement Periodontal Attachment Loss medicine Cell Adhesion Humans Periodontal Pocket L-Selectin Receptors Immunologic Receptor Periodontitis Therapeutic Irrigation Fluorescent Dyes medicine.diagnostic_test biology Chemistry Gingival Crevicular Fluid Middle Aged medicine.disease Flow Cytometry Chronic periodontitis Receptors Formyl Peptide N-Formylmethionine Leucyl-Phenylalanine Clinical attachment loss Integrin alpha M CD18 Antigens Immunology biology.protein Periodontics Female |
| Zdroj: | Journal of clinical periodontology. 22(7) |
| ISSN: | 0303-6979 |
| Popis: | Extensive data demonstrate that polymorphonuclear leukocytes (PMN) are the predominant cell type involved in periodontal disease and that gingival crevicular fluid constituents are influenced by the inflamed gingiva. The aim of the present study was to evaluate the ability of gingival crevicular washing (GCW) (a dilution of gingival crevicular fluid) from periodontal sites in different clinical conditions of modulating the PMN membrane receptors involved in motility, adhesion and phagocytosis before and after periodontal treatment. 10 patients affected by adult periodontitis (AP) were selected. From each patient, 2 test sites (TS) were chosen on the basis of a probing depth > 5 mm and attachment loss, and 2 control sites (CS) with probing depth < 3 mm without. Modifications of membrane receptor density of PMN from healthy donors incubated with GCW harvested from TS and CS was evaluated using fluorescent probes and flow cytometry. Compared to CS-GCW, TS-GCW before therapy increased the expression of the beta 2 integrin CD11b and the chemotactic receptor for the oligopeptide N-formyl methionyl leucyl phenylalanine (FMLP-R) while it reduced the expression of L-selectin. GCW collected from the same TS after the successful completion of periodontal treatment did not influence PMN receptors, indicating that the clinical improvement paralleled the disappearance of the PMN modulating capability contained in TS-GCW before therapy. In conclusion, the present data illustrate the relevant modifications occurring at PMN membrane in chronic adult periodontitis exerted by GCW obtained by a simple fluid collection technique. Thus, monitoring gingival crevicular fluid PMN activating capability may help disclose the presence of chronic periodontitis and may be useful in assessing successful treatment. |
| Databáze: | OpenAIRE |
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