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Becerik, S. et al.

Sema Becerik, Nazan Ozsan, Ali Gürkan, Veli Özgen Oztürk, Gül Atilla, Gülnur Emingil,

Toll like receptor 4 and membrane-bound CD14 expressions in gingivitis, periodontitis and CsA-induced gingival overgrowth.

OBJECTIVE: Immune cell recognition of lipopolysaccharides via CD14 and Toll-like receptor 4 (TLR4) complexes plays a crucial role in linking innate and adaptive immune responses. This study was aimed to investigate the expression of TLR4 and membrane-bound CD14 (mCD14) in the gingival tissues of patients with gingivitis, periodontitis and CsA-induced gingival overgrowth. DESIGN: Gingival tissues were obtained from 10 renal transplant patients receiving cyclosporine-A (CsA) and having gingival overgrowth (GO), 10 patients with chronic periodontitis, 10 generalized aggressive periodontitis, 10 gingivitis and 10 healthy subjects. Immunohistochemistry was performed in order to determine the localization of TLR4 and mCD14 in tissue specimens. RESULTS: TLR4 and mCD14 expressions were detected in all tissues including healthy gingival biopsies. TLR4 and mCD14 positive cells were predominantly confined to the epithelium-connective tissue interface area, and were highly expressed in the basal cell layer of patients with CsA GO and chronic periodontitis, compared to healthy group (P<0.05). CONCLUSION: The present study suggests that TLR4 and mCD14 protein expressions may be interrelated and appear to be associated with periodontal disease. CsA usage seemed not to affect TLR4 and mCD14 expressions in CsA induced GO tissues.[1]

References

Toll like receptor 4 and membrane-bound CD14 expressions in gingivitis, periodontitis and CsA-induced gingival overgrowth. Becerik, S., Ozsan, N., Gürkan, A., Oztürk, V.Ö., Atilla, G., Emingil, G. Arch. Oral Biol. (2011) [Pubmed]

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