PMID- 11887470 OWN - NLM STAT- MEDLINE DCOM- 20020612 LR - 20161021 IS - 1553-0841 (Print) IS - 1553-0841 (Linking) VI - 6 IP - 1 DP - 2001 Dec TI - Role for periodontal bacteria in cardiovascular diseases. PG - 41-7 AB - BACKGROUND: Several epidemiological studies as well as a recent animal model approach have suggested a role for periodontal diseases in the development of cardiovascular disease (CVD). This relationship could be mediated by inflammatory responses induced by periodontal pathogens as well as direct interaction of these organisms with cardiac tissue. METHODS: In order to explore these possibilities, the effects of the periodontal pathogen Porphyromonas gingivalis on cellular events proposed to play a role in CVD were investigated. RESULTS: P. gingivalis, as well as its outer membrane vesicles (OMV), was able to induce foam cell formation (an important characteristic of CVD) in the murine macrophage cell line J774 A.1. This property appears to be mediated by the lipopolysaccharide (LPS) fraction of the cells. Several other oral bacteria were also able to induce foam cell formation. Furthermore, since the rupture of the fibrous cap of plaque appears to be an important factor in acute coronary syndrome, it was demonstrated that P. gingivalis 381 degraded fibrous caps isolated from autopsy samples. In addition, it was observed that strain 381 strongly induced matrix metalloproteinase (MMP)-9 protease activity, implicated in plaque rupture, from the J774 A.1 macrophages. Finally, strain 381 was able to enhance monocyte chemoattractant protein-1 (MCP-1) and NADH oxidase expression from endothelial cells. CONCLUSIONS: Therefore, P. gingivalis exhibits several properties which could play a role in CVD as mediators of LDL oxidation, foam cell formation, and rupture of atherosclerotic plaque. FAU - Kuramitsu, H K AU - Kuramitsu HK AD - Department of Oral Biology, University at Buffalo, Buffalo, New York, USA. FAU - Qi, M AU - Qi M FAU - Kang, I C AU - Kang IC FAU - Chen, W AU - Chen W LA - eng GR - DE08293/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Ann Periodontol JT - Annals of periodontology JID - 9702874 RN - 0 (Chemokine CCL2) RN - 0 (Cholesterol, LDL) RN - 0 (Multienzyme Complexes) RN - EC 1.6.- (NADH oxidase) RN - EC 1.6.- (NADH, NADPH Oxidoreductases) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) MH - Animals MH - Arteriosclerosis/metabolism MH - Bacteroidaceae Infections/*complications MH - Cardiovascular Diseases/*microbiology MH - Cell Line MH - Cell Membrane/physiology MH - Cells, Cultured MH - Chemokine CCL2/biosynthesis MH - Cholesterol, LDL/metabolism MH - Endothelium, Vascular/enzymology MH - Enzyme Induction MH - Foam Cells/pathology MH - Humans MH - Macrophages/enzymology MH - Matrix Metalloproteinase 9/biosynthesis MH - Mice MH - Multienzyme Complexes/biosynthesis MH - NADH, NADPH Oxidoreductases/biosynthesis MH - Oxidation-Reduction MH - Periodontal Diseases/*microbiology MH - Porphyromonas gingivalis/enzymology/metabolism/*physiology MH - Vacuoles/physiology EDAT- 2002/03/13 10:00 MHDA- 2002/06/13 10:01 CRDT- 2002/03/13 10:00 PHST- 2002/03/13 10:00 [pubmed] PHST- 2002/06/13 10:01 [medline] PHST- 2002/03/13 10:00 [entrez] AID - 10.1902/annals.2001.6.1.41 [doi] PST - ppublish SO - Ann Periodontol. 2001 Dec;6(1):41-7. doi: 10.1902/annals.2001.6.1.41.