PMID- 12732205 OWN - NLM STAT- MEDLINE DCOM- 20030618 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 305 IP - 1 DP - 2003 May 23 TI - High glucose accelerates MCP-1 production via p38 MAPK in vascular endothelial cells. PG - 122-8 AB - In diabetes mellitus (DM), hyperglycemia causes cardiovascular lesions through endothelial dysfunction. Monocyte chemoattractant protein-1 (MCP-1) is implicated in the pathogenesis of cardiovascular lesions. By using human umbilical vein endothelial cells, we investigated the effect of hyperglycemia on MCP-1 production and its signaling pathways. Chronic incubation with high glucose increased mRNA expression and production rate of MCP-1 in a time (1-7 days)- and concentration (10-35 mM)-dependent manner. Chronic exposure to high glucose resulted in enhancement of generation of reactive oxygen species (ROS), as determined by increasing level of 2,7-dichlorofluorescein (DCF), and subsequent activation of p38 mitogen-activated protein kinase (MAPK). Neither c-Jun NH(2)-terminal kinase nor extracellular signal-regulated kinase1/2 was affected. SB203580 or FR167653, p38 MAPK specific inhibitors, completely suppressed MCP-1 expression. Catalase suppressed p38 MAPK phosphorylation and MCP-1 expression. These results indicate that hyperglycemia can accelerate MCP-1 production through the mechanism involving p38 MAPK, ROS-sensitive signaling pathway, in vascular endothelial cells. FAU - Takaishi, Hiroshi AU - Takaishi H AD - Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan. FAU - Taniguchi, Takahiro AU - Taniguchi T FAU - Takahashi, Akihiro AU - Takahashi A FAU - Ishikawa, Yuichi AU - Ishikawa Y FAU - Yokoyama, Mitsuhiro AU - Yokoyama M LA - eng PT - Journal Article PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Antioxidants) RN - 0 (Chemokine CCL2) RN - 0 (Reactive Oxygen Species) RN - BBX060AN9V (Hydrogen Peroxide) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Antioxidants/pharmacology MH - Cells, Cultured MH - Chemokine CCL2/*biosynthesis/genetics MH - Endothelium, Vascular/drug effects/*enzymology/*metabolism MH - Gene Expression Regulation/drug effects MH - Glucose/antagonists & inhibitors/*pharmacology MH - Hydrogen Peroxide/metabolism MH - Kinetics MH - MAP Kinase Signaling System MH - Mitogen-Activated Protein Kinases/*physiology MH - Reactive Oxygen Species/metabolism MH - Up-Regulation MH - p38 Mitogen-Activated Protein Kinases EDAT- 2003/05/07 05:00 MHDA- 2003/06/19 05:00 CRDT- 2003/05/07 05:00 PHST- 2003/05/07 05:00 [pubmed] PHST- 2003/06/19 05:00 [medline] PHST- 2003/05/07 05:00 [entrez] AID - S0006291X03007125 [pii] AID - 10.1016/s0006-291x(03)00712-5 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2003 May 23;305(1):122-8. doi: 10.1016/s0006-291x(03)00712-5.