Porphyromonas gingivalisinfection-induced tissue and bone transcriptional profiles
- 25 January 2010
- journal article
- Published by Wiley in Molecular Oral Microbiology
- Vol. 25 (1), 61-74
- https://doi.org/10.1111/j.2041-1014.2009.00555.x
Abstract
Porphyromonas gingivalis has been associated with subgingival biofilms in adult periodontitis. However, the molecular mechanisms of its contribution to chronic gingival inflammation and loss of periodontal structural integrity remain unclear. This investigation aimed to examine changes in the host transcriptional profiles during a P. gingivalis infection using a murine calvarial model of inflammation and bone resorption. P. gingivalis FDC 381 was injected into the subcutaneous soft tissue over the calvaria of BALB/c mice for 3 days, after which the soft tissues and calvarial bones were excised. RNA was isolated from infected soft tissues and calvarial bones and was analysed for transcript profiles using Murine GeneChip® arrays to provide a molecular profile of the events that occur following infection of these tissues. After P. gingivalis infection, 6452 and 2341 probe sets in the infected soft tissues and calvarial bone, respectively, were differentially expressed (P ≤ 0.05). Biological pathways significantly impacted by P. gingivalis infection in tissues and calvarial bone included cell adhesion (immune system) molecules, Toll‐like receptors, B‐cell receptor signaling, transforming growth factor‐β cytokine family receptor signaling, and major histocompatibility complex class II antigen processing pathways resulting in proinflammatory, chemotactic effects, T‐cell stimulation, and downregulation of antiviral and T‐cell chemotactic effects. P. gingivalis‐induced inflammation activated osteoclasts, leading to local bone resorption. This is the first in vivo evidence that localized P. gingivalis infection differentially induces transcription of a broad array of host genes, the profiles of which differed between inflamed soft tissues and calvarial bone.Keywords
This publication has 43 references indexed in Scilit:
- Effects of Toll-like receptor 4 onPorphyromonas gingivalis-induced bone loss in miceJournal of Periodontal Research, 2009
- Transcriptomes in Healthy and Diseased Gingival TissuesThe Journal of Periodontology, 2008
- Validation of reference genes for qPCR studies on Caco-2 cell differentiationEuropean Journal of Pharmaceutics and Biopharmaceutics, 2008
- Role of Porphyromonas gingivalis SerB in Gingival Epithelial Cell Cytoskeletal Remodeling and Cytokine ProductionInfection and Immunity, 2008
- Interleukin 18 and Periodontal DiseaseJournal of Dental Research, 2007
- Gene Expression in Splenic CD4 and CD8 Cells From BALB/c Mice Immunized WithPorphyromonas gingivalisThe Journal of Periodontology, 2006
- Porphyromonas gingivalisFimbria-Dependent Activation of Inflammatory Genes in Human Aortic Endothelial CellsInfection and Immunity, 2005
- Ontological analysis of gene expression data: current tools, limitations, and open problemsBioinformatics, 2005
- Molecular Characterization of the Acute Inflammatory Response to Infections with Gram-Negative versus Gram-Positive BacteriaInfection and Immunity, 2003
- Etiopathogenesis of periodontitis in children and adolescentsPeriodontology 2000, 2001