PMID- 12716761 OWN - NLM STAT- MEDLINE DCOM- 20030711 LR - 20240109 IS - 0012-1797 (Print) IS - 0012-1797 (Linking) VI - 52 IP - 5 DP - 2003 May TI - High glucose-induced expression of proinflammatory cytokine and chemokine genes in monocytic cells. PG - 1256-64 AB - Monocyte activation and adhesion to the endothelium play important roles in inflammatory and cardiovascular diseases. These processes are further aggravated by hyperglycemia, leading to cardiovascular complications in diabetes. We have previously shown that high glucose (HG) treatment activates monocytes and induces the expression of tumor necrosis factor (TNF)-alpha via oxidant stress and nuclear factor-kB transcription factor. To determine the effects of HG on the expression of other inflammatory genes, in the present study, HG-induced gene profiling was performed in THP-1 monocytes using cytokine gene arrays containing 375 known genes. HG treatment upregulated the expression of 41 genes and downregulated 15 genes that included chemokines, cytokines, chemokines receptors, adhesion molecules, and integrins. RT-PCR analysis further confirmed that HG significantly increased the expression of monocyte chemoattractant protein-1 (MCP-1), TNF-alpha, beta(2)-integrin, interleukin-1beta, and others. HG treatment increased transcription of the MCP-1 gene, MCP-1 protein levels, and adhesion of THP-1 cells to endothelial cells. HG-induced MCP-1 mRNA expression and monocyte adhesion were blocked by specific inhibitors of oxidant stress, protein kinase C, ERK1/2, and p38 mitogen-activated protein kinases. These results show for the first time that multiple inflammatory cytokines and chemokines relevant to the pathogenesis of diabetes complications are induced by HG via key signaling pathways. FAU - Shanmugam, Narkunaraja AU - Shanmugam N AD - Department of Diabetes, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA. FAU - Reddy, Marpadga A AU - Reddy MA FAU - Guha, Mausumee AU - Guha M FAU - Natarajan, Rama AU - Natarajan R LA - eng GR - R01 DK065073/DK/NIDDK NIH HHS/United States GR - P01 HL 55798/HL/NHLBI 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 - Diabetes JT - Diabetes JID - 0372763 RN - 0 (Chemokines) RN - 0 (Cytokines) RN - 0 (DNA Primers) RN - 0 (Enzyme Inhibitors) RN - 0 (Imidazoles) RN - 0 (Pyridines) RN - IY9XDZ35W2 (Glucose) RN - PVX798P8GI (4-(4-fluorophenyl)-2-(4-hydroxyphenyl)-5-(4-pyridyl)imidazole) RN - WYQ7N0BPYC (Acetylcysteine) SB - IM MH - Acetylcysteine/pharmacology MH - Base Sequence MH - Cell Line MH - Chemokines/classification/*genetics MH - Cytokines/classification/*genetics MH - DNA Primers MH - Enzyme Inhibitors/pharmacology MH - Gene Expression Regulation/drug effects/*immunology MH - Glucose/*pharmacology MH - Humans MH - Imidazoles/pharmacology MH - Monocytes/drug effects/*immunology MH - Oligonucleotide Array Sequence Analysis/methods MH - Polymerase Chain Reaction MH - Pyridines/pharmacology EDAT- 2003/04/30 05:00 MHDA- 2003/07/12 05:00 CRDT- 2003/04/30 05:00 PHST- 2003/04/30 05:00 [pubmed] PHST- 2003/07/12 05:00 [medline] PHST- 2003/04/30 05:00 [entrez] AID - 10.2337/diabetes.52.5.1256 [doi] PST - ppublish SO - Diabetes. 2003 May;52(5):1256-64. doi: 10.2337/diabetes.52.5.1256.