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Journal of Dental Research
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Clinical

Tumor Necrosis Factor-{alpha}-converting Enzyme (TACE) Levels in Periodontal Diseases

N. Bostanci1, G. Emingil2, B. Afacan2, B. Han2, T. Ilgenli2, G. Atilla2, F.J. Hughes1 and G.N. Belibasakis1,*

1 Centre for Adult Oral Health, Bart’s and the London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, E1 2AD London, UK; and
2 Department of Periodontology, School of Dentistry, Ege University, Izmir, Turkey

Correspondence: * corresponding author, g.belibasakis{at}qmul.ac.uk

Tumor necrosis factor-{alpha}-converting enzyme (TACE) is a metalloprotease which can shed several cytokines from the cell membrane, including receptor activator of NF-{kappa}B ligand (RANKL). This study aimed to investigate the hypothesis that TACE would be elevated in the gingival crevicular fluid (GCF) of persons with periodontitis. Total TACE amounts in GCF were higher in persons with chronic and aggressive periodontitis than in those with gingivitis or in healthy persons. TACE concentrations in GCF were higher in persons with chronic and aggressive periodontitis than in those with gingivitis, although not significantly higher than in healthy persons. Persons with chronic periodontitis receiving immunosuppressive treatment exhibited over 10-fold lower TACE levels than the other periodontitis groups. TACE was positively correlated with probing pocket depth, clinical attachment levels, and RANKL concentrations in GCF. In conclusion, the increased GCF TACE levels in persons with periodontitis and their positive correlation with RANKL may indicate an association of this enzyme with alveolar bone loss, and may warrant special attention in future therapeutic approaches.

Key Words: TACE • gingival crevicular fluid • RANKL • bone resorption • periodontal diseases

Journal of Dental Research, Vol. 87, No. 3, 273-277 (2008)
DOI: 10.1177/154405910808700311
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