PMID- 10623560 OWN - NLM STAT- MEDLINE DCOM- 20000207 LR - 20061115 IS - 0882-4010 (Print) IS - 0882-4010 (Linking) VI - 28 IP - 1 DP - 2000 Jan TI - Induction of monocyte chemoattractant protein-1 (MCP-1) production by Pseudomonas nitrite reductase in human pulmonary type II epithelial-like cells. PG - 17-23 AB - Monocyte chemoattractant protein-1 (MCP-1), a chemoattractant for monocytes, is presumed to play a pivotal role in the recruitment and accumulation of monocytes in various diseases including pulmonary infections. We examined here whether or not Pseudomonas nitrite reductase (PNR), a recently identified IL-8 inducer in various respiratory cells, could stimulate human pulmonary type II epithelial-like cells (A549) to induce MCP-1 production. A time- and dose-dependent induction of MCP-1 protein synthesis associated with an increase of MCP-1 mRNA expression by A549 cells was observed in response to PNR. New protein translation was not required for PNR-mediated MCP-1 mRNA expression in the same cells. When anti-human MCP-1 monoclonal antibody was used for neutralizing of monocyte chemotactic factor (MCF) activities in the culture supernatants of these cells stimulated with PNR, significant reductions of MCF activities (the mean reduction rate; 49-59%, P<0. 05) were observed. These data suggest that PNR may contribute to monocyte migration, through inducing pulmonary epithelial cell-derived MCP-1 production in the airway of patients with pneumonia due to P. aeruginosa. CI - Copyright 2000 Academic Press. FAU - Sar, B AU - Sar B AD - Department of Internal Medicine, Institute of Tropical Medicine, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan. FAU - Oishi, K AU - Oishi K FAU - Wada, A AU - Wada A FAU - Hirayama, T AU - Hirayama T FAU - Matsushima, K AU - Matsushima K FAU - Nagatake, T AU - Nagatake T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Microb Pathog JT - Microbial pathogenesis JID - 8606191 RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) RN - EC 1.7.- (Nitrite Reductases) SB - IM MH - Cell Line MH - Chemokine CCL2/*biosynthesis/genetics MH - Epithelial Cells/metabolism MH - Humans MH - Lung/*metabolism MH - Nitrite Reductases/*physiology MH - Pseudomonas aeruginosa/*enzymology MH - RNA, Messenger/analysis EDAT- 2000/01/07 00:00 MHDA- 2000/01/07 00:01 CRDT- 2000/01/07 00:00 PHST- 2000/01/07 00:00 [pubmed] PHST- 2000/01/07 00:01 [medline] PHST- 2000/01/07 00:00 [entrez] AID - S0882-4010(99)90320-0 [pii] AID - 10.1006/mpat.1999.0320 [doi] PST - ppublish SO - Microb Pathog. 2000 Jan;28(1):17-23. doi: 10.1006/mpat.1999.0320.