PMID- 9641137 OWN - NLM STAT- MEDLINE DCOM- 19980708 LR - 20071114 IS - 0099-2399 (Print) IS - 0099-2399 (Linking) VI - 24 IP - 2 DP - 1998 Feb TI - Endodontic pathogens stimulate monocyte chemoattractant protein-1 and interleukin-8 in mononuclear cells. PG - 86-90 AB - Microbial infection of the dental pulp leads to the recruitment of leukocytes and the formation of lesions of endodontic origin. The chemokines interleukin-8 (IL-8) and monocyte chemoattractant protein-1 (MCP-1) are relatively specific chemoattractants for neutrophils and monocytes, respectively. In the present studies, peripheral blood mononuclear cells were stimulated by Streptococcus mutants, Porphyromonas endodontalis, and Peptostreptococcus anaerobius, which are associated with lesions of endodontic origin. Each of these bacteria induced a dose-dependent increase in IL-8 and MCP-1, determined by ELISA. The levels induced are physiologically relevant. However, low doses of P. endodontalis were less effective in inducing IL-8 or MCP-1 expression, compared with S. mutants or P. anaerobius. Thus, these bacteria can induce significant levels of the chemokines IL-8 and MCP-1, which could contribute to the recruitment of neutrophils or monocytes in vivo. The expression of these mediators may contribute to the development of endodontic infections, particularly with regard to inflammatory leukocyte recruitment. FAU - Jiang, Y AU - Jiang Y AD - Department of Endodontics, School of Dental Medicine, Boston University, MA, USA. FAU - Russell, T R AU - Russell TR FAU - Schilder, H AU - Schilder H FAU - Graves, D T AU - Graves DT LA - eng GR - DE05642/DE/NIDCR NIH HHS/United States GR - DE07559/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Endod JT - Journal of endodontics JID - 7511484 RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-8) MH - Animals MH - Cells, Cultured MH - Chemokine CCL2/*biosynthesis MH - Dose-Response Relationship, Immunologic MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Interleukin-8/*biosynthesis MH - Leukocytes, Mononuclear/*metabolism MH - Neutrophil Activation MH - Peptostreptococcus/immunology/physiology MH - Porphyromonas/immunology/*physiology MH - Rabbits MH - Streptococcus mutans/immunology/*physiology EDAT- 1998/06/26 00:00 MHDA- 1998/06/26 00:01 CRDT- 1998/06/26 00:00 PHST- 1998/06/26 00:00 [pubmed] PHST- 1998/06/26 00:01 [medline] PHST- 1998/06/26 00:00 [entrez] AID - S0099-2399(98)80083-6 [pii] AID - 10.1016/S0099-2399(98)80083-6 [doi] PST - ppublish SO - J Endod. 1998 Feb;24(2):86-90. doi: 10.1016/S0099-2399(98)80083-6.