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dc.contributor.authorCury, Patricia Ramos-
dc.contributor.authorCarmo, J. P.-
dc.contributor.authorHorewicz, V. V.-
dc.contributor.authorSantos, Jean Nunes dos-
dc.contributor.authorBarbuto, J. A.-
dc.creatorCury, Patricia Ramos-
dc.creatorCarmo, J. P.-
dc.creatorHorewicz, V. V.-
dc.creatorSantos, Jean Nunes dos-
dc.creatorBarbuto, J. A.-
dc.descriptionTexto completo. Acesso restrito. p. 1208–1216pt_BR
dc.description.abstractObjective To investigate the effects of periodontal bacterial lysates on maturation and function of mature monocyte-derived dendritic cells (m-MDDCs) derived from individuals with chronic periodontitis (CP) or healthy periodontal tissue (HP). Design m-MDDCs derived from peripheral blood monocytes, cultured for 7 days in presence of interleukin (IL)-4 and granulocyte-macrophage colony stimulating factor (GM-CSF), were stimulated with lysates of Streptococcus sanguinis, Prevotella intermedia, Porphyromonas gingivalis, or Treponema denticola on day 4, and were then phenotyped. IL-10, IL-12 and IFN-gamma concentration in the supernatant of cultures were measured. Results Expression of HLA-DR was lower in bacterial-unstimulated mature m-MDDC from CP compared to HP (p = 0.04), while expression of CD1a and CD123 were higher in CP. The expression pattern of HLA-DR, CD11c, CD123, and CD1a did not change on bacterial stimulation, regardless of the bacteria. Stimulation with P. intermedia upregulated CD80 and CD86 in CP cells (p ≤ 0.05). Production of IL-12p70 by bacterial-unstimulated m-MDDCs was 5.8-fold greater in CP compared to HP. Bacterial stimulation further increased IL-12p70 production while decreasing IL-10. Significantly more IFN-gamma was produced in co-cultures of CP m-MDDCs than with HP m-MDDCs when cells were stimulated with P. intermedia (p = 0.009). Conclusions Bacterial-unstimulated m-MDDC from CP exhibited a more immature phenotype but a cytokine profile biased towards proinflammatory response; this pattern was maintained/exacerbated after bacterial stimulation. P. intermedia upregulated co-stimulatory molecules and IFN-gamma expression in CP m-MDDC. These events might contribute to periodontitis pathogenesis.pt_BR
dc.publisherArchives of Oral Biologypt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectImmune responsept_BR
dc.subjectPeriodontal diseasept_BR
dc.subjectPeriodontal bacteriapt_BR
dc.titleAltered phenotype and function of dendritic cells in individuals with chronic periodontitispt_BR
dc.title.alternativeArchives of Oral Biologypt_BR
dc.typeArtigo de Periódicopt_BR
dc.identifier.numberv. 58, n. 9pt_BR
Appears in Collections:Artigo Publicado em Periódico (Faculdade de Odontologia)

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