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Cellular Response Mechanisms in Porphyromonas gingivalis Infection
Örebro University, School of Medical Sciences.
Örebro University, School of Medical Sciences.
Örebro University, School of Medical Sciences.
2017 (English)In: Periodontitis: A Useful Reference / [ed] Pachiappan Arjunan, InTech, 2017, 45-68 p.Chapter in book (Refereed)
Abstract [en]

The pathogenicity of the periodontal biofilm is highly dependent on a few key species, of which Porphyromonas gingivalis is considered to be one of the most important pathogens. P. gingivalis expresses a broad range of virulence factors, of these cysteine proteases (gingipains) are of special importance both for the bacterial survival/proliferation and for the pathological outcome. Several cell types, for example, epithelial cells, endothelial cells, dendritic cells, osteoblasts, and fibroblasts, reside in the periodontium and are part of the innate host response, as well as platelets, neutrophils, lymphocytes, and monocytes/macrophages. These cells recognize and respond to P. gingivalis and its components through pattern recognition receptors (PRRs), for example, Toll-like receptors and protease-activated receptors. Ligation of PRRs induces downstream-signaling pathways modifying the activity of transcription factors that regulates the expression of genes linked to inflammation. This is followed by the release of inflammatory mediators, for example, cytokines and reactive oxygen species. Periodontal disease is today considered to play a significant role in various systemic conditions such as cardiovascular disease (CVD). The mechanisms by which P. gingivalis and its virulence factors interact with host immune cells and contribute to the pathogenesis of periodontitis and CVD are far from completely understood.

Abstract [en]

Periodontitis - A Useful Reference is a comprehensive book compiled by a team of experts with the objective of providing an overview of the basic pathology of "periodontitis" and its implication on oral health and general systemic health. Periodontitis has become a global health burden in recent days. It is noteworthy that oral health is being considered as the mirror of general health and the study of oral-systemic health connections has advanced among scientists, clinicians, and the public as well. We wish the array of chapters that highlights the importance and impact of periodontal health could be a useful guide for the community of public, students, and clinicians.

Place, publisher, year, edition, pages
InTech, 2017. 45-68 p.
Keyword [en]
Host-microbe interaction, immune cells, pathogen recognition receptors, intracellular signaling, inflammatory responses, Porphyromonas gingivalis, gingipains, LPS, cardiovascular disease, treatment
National Category
Medical and Health Sciences Medical Bioscience
Research subject
Medicine; Biomedicine
Identifiers
URN: urn:nbn:se:oru:diva-63388ISBN: 978-953-51-3606-4 ISBN: 978-953-51-3605-7 (print)OAI: oai:DiVA.org:oru-63388DiVA: diva2:1166519
Available from: 2017-12-15 Created: 2017-12-15 Last updated: 2017-12-15Bibliographically approved

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Khalaf, HazemPalm, EleonorBengtsson, Torbjorn

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