Evidence of the presence of T helper type 17 cells in chronic lesions of human periodontal disease


Autoria(s): CARDOSO, C. R.; GARLET, G. P.; CRIPPA, G. E.; ROSA, A. L.; MARTINS JUNIOR, WALTER; ROSSI, M. A.; SILVA, J. S.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

19/10/2012

19/10/2012

2009

Resumo

Periodontal disease is a chronic inflammation of the attachment structures of the teeth, triggered by potentially hazardous microorganisms and the consequent immune-inflammatory responses. In humans, the T helper type 17 (Th17) lineage, characterized by interleukin-17 (IL-17) production, develops under transforming growth factor-beta (TGF-beta), IL-1 beta, and IL-6 signaling, while its pool is maintained by IL-23. Although this subset of cells has been implicated in various autoimmune, inflammatory, and bone-destructive conditions, the exact role of T lymphocytes in chronic periodontitis is still controversial. Therefore, in this study we investigated the presence of Th17 cells in human periodontal disease. Gingival and alveolar bone samples from healthy patients and patients with chronic periodontitis were collected and used for the subsequent assays. The messenger RNA expression for the cytokines IL-17, TGF-beta, IL-1 beta, IL-6, and IL-23 in gingiva or IL-17 and receptor activator for nuclear factor-kappa B ligand in alveolar bone was evaluated by real-time polymerase chain reaction. The production of IL-17, TGF-beta, IL-1 beta, IL-6, and IL-23 proteins was evaluated by immunohistochemistry and the presence of Th17 cells in the inflamed gingiva was confirmed by immunofluorescence confocal microscopy for CD4 and IL-17 colocalization. Our data demonstrated elevated levels of IL-17, TGF-beta, IL-1 beta, IL-6, and IL-23 messenger RNA and protein in diseased tissues as well as the presence of Th17 cells in gingiva from patients with periodontitis. Moreover, IL-17 and the bone resorption factor RANKL were abundantly expressed in the alveolar bone of diseased patients, in contrast to low detection in controls. These results provided strong evidence for the presence of Th17 cells in the sites of chronic inflammation in human periodontal disease.

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)

Identificador

ORAL MICROBIOLOGY AND IMMUNOLOGY, v.24, n.1, p.1-6, 2009

0902-0055

http://producao.usp.br/handle/BDPI/24948

10.1111/j.1399-302X.2008.00463.x

http://dx.doi.org/10.1111/j.1399-302X.2008.00463.x

Idioma(s)

eng

Publicador

WILEY-BLACKWELL PUBLISHING, INC

Relação

Oral Microbiology and Immunology

Direitos

restrictedAccess

Copyright WILEY-BLACKWELL PUBLISHING, INC

Palavras-Chave #immune response #interleukin-17 #periodontal disease #receptor activator of nuclear factor-kappa B ligand #T helper type 17 #EPSTEIN-BARR-VIRUS #ACTINOBACILLUS-ACTINOMYCETEMCOMITANS #PHYSIOLOGICAL INHIBITORS #CYTOKINE PROFILES #BONE DESTRUCTION #CUTTING EDGE #IL-17 #RECEPTOR #TISSUES #INTERLEUKIN-17 #Dentistry, Oral Surgery & Medicine #Immunology #Microbiology
Tipo

article

original article

publishedVersion