Porphyromonas gingivalisinfection and cell death in human aortic endothelial cells
Open Access
- 1 July 2007
- journal article
- Published by Oxford University Press (OUP) in FEMS Microbiology Letters
- Vol. 272 (1), 106-113
- https://doi.org/10.1111/j.1574-6968.2007.00736.x
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.Keywords
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