PMID- 11232040 OWN - NLM STAT- MEDLINE DCOM- 20010412 LR - 20111117 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 86 IP - 1 DP - 2001 Jan TI - Insulin inhibits NFkappaB and MCP-1 expression in human aortic endothelial cells. PG - 450-3 AB - In view of our recent demonstration that insulin inhibits the expression of intercellular adhesion molecule-1 (ICAM-1) and the fact that ICAM-1 expression is known to be modulated by nuclear factor-kappaB (NFkappaB), we have now investigated whether insulin inhibits intranuclear NFkappaB binding activity. We have also investigated whether insulin inhibits the pro-inflammatory chemokine, monocyte chemoattractant protein-1 (MCP-1), which attracts leucocytes to the inflamed sites and is also regulated by NFkappaB. Insulin was incubated with cultured human aortic endothelial cells (HAEC) at 0, 100 and 1000 microU/mL. Intranuclear NFkappaB binding activity was suppressed by approximately 45% at 100 microU/mL and by 60% at 1000 microU/mL (p < 0.05). MCP-1 mRNA expression was also suppressed by 47% at 100 microU/mL and by 79% at 1000 microU/mL (p < 0.05). We conclude that insulin at physiologically relevant concentrations exerts an inhibitory effect on the cardinal pro-inflammatory transcription factor NFkappaB and the pro-inflammatory chemokine MCP-1; these effects suggest an anti-inflammatory and potential anti-atherogenic effects of insulin. FAU - Aljada, A AU - Aljada A AD - Division of Endocrinology, Diabetes and Metabolism, State University of New York at Buffalo and Kaleida Health, Buffalo, New York 14209, USA. FAU - Ghanim, H AU - Ghanim H FAU - Saadeh, R AU - Saadeh R FAU - Dandona, P AU - Dandona P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Chemokine CCL2) RN - 0 (Insulin) RN - 0 (NF-kappa B) SB - IM MH - Aorta/cytology/*metabolism MH - Cells, Cultured MH - Chemokine CCL2/*antagonists & inhibitors MH - Endothelium, Vascular/cytology/*metabolism MH - Humans MH - Insulin/*pharmacology MH - NF-kappa B/*antagonists & inhibitors EDAT- 2001/03/07 10:00 MHDA- 2001/04/17 10:01 CRDT- 2001/03/07 10:00 PHST- 2001/03/07 10:00 [pubmed] PHST- 2001/04/17 10:01 [medline] PHST- 2001/03/07 10:00 [entrez] AID - 10.1210/jcem.86.1.7278 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2001 Jan;86(1):450-3. doi: 10.1210/jcem.86.1.7278.