Porphyromonas gingivalis infection and cell death in human aortic endothelial cells

Georg A. Roth, Hendrik J. Ankersmit, Vinette B. Brown, Panos N. Papapanou, Ann Marie Schmidt, Evanthia Lalla

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

Porphyromonas gingivalis is a periodontal pathogen that promotes a proatherogenic response in endothelial cells. Cell death responses of human aortic endothelial cells to P. gingivalis at various multiplicities of infection (MOI) were investigated by assessment of cell detachment, histone-associated DNA fragmentation, lactate dehydrogenase release and ADP:ATP ratio. Porphyromonas gingivalis at MOI 1 : 10-1 : 100 did not have a cytotoxic effect, but induced apoptotic cell death at MOI 1 : 500 and 1 : 1000. Monocyte chemoattractant protein-1 production was significantly enhanced by P. gingivalis at MOI 1 : 100. At higher MOI, at least in vitro, P. gingivalis mediates endothelial apoptosis, thereby potentially amplifying proatherogenic mechanisms in the perturbed vasculature.

Original languageEnglish
Pages (from-to)106-113
Number of pages8
JournalFEMS Microbiology Letters
Volume272
Issue number1
DOIs
Publication statusPublished - Jul 2007

Funding

FundersFunder number
National Institute of Dental and Craniofacial ResearchR01DE014575

    ASJC Scopus Subject Areas

    • Microbiology
    • Molecular Biology
    • Genetics

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