PMID- 12426210 OWN - NLM STAT- MEDLINE DCOM- 20021204 LR - 20190901 IS - 1524-4636 (Electronic) IS - 1079-5642 (Linking) VI - 22 IP - 11 DP - 2002 Nov 1 TI - Endothelial determinants of dendritic cell adhesion and migration: new implications for vascular diseases. PG - 1817-23 AB - OBJECTIVE: Atherosclerosis is a chronic disease triggered by endothelial injury and sustained by inflammation. Dendritic cells (DCs) are critical for the cell-mediated arm of an immune response and are known to influence inflammatory immunity. A fundamental aspect of DC function is their capacity to adhere and migrate through vascular endothelial cells (ECs). We investigated the role of endothelial activation and dysregulation of the NO pathway on DC adhesion and migration. METHODS AND RESULTS: We discovered that DC adhesion and migration are modulated by changes in endothelial function. DC adhesion and transmigration were markedly increased after exposing ECs to hypoxia, oxidized low density lipoprotein, or tumor necrosis factor-alpha. Specifically, inhibition of endothelial NO synthase increased DC binding and transmigration. L-Arginine or 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibition partially decreased DC-EC interaction. CONCLUSIONS: The results of this study suggest that the adhesion and migration of DCs are increased by stimuli known to accelerate atherogenesis. Vice versa, augmentation of endothelial NO synthase activity prevents DC adhesion. These findings may provide insight into the inflammatory processes occurring in atherosclerosis. Because DCs control immunity, regulating DC-EC interaction may be relevant to inflammation and atherogenesis. FAU - Weis, Michael AU - Weis M AD - Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, Calif, USA. miweis@med.uni-muenchen.de FAU - Schlichting, Christoph L AU - Schlichting CL FAU - Engleman, Edgar G AU - Engleman EG FAU - Cooke, John P AU - Cooke JP LA - eng GR - CA09151-26/CA/NCI NIH HHS/United States GR - R01 HL-58638/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 - Arterioscler Thromb Vasc Biol JT - Arteriosclerosis, thrombosis, and vascular biology JID - 9505803 RN - 0 (CD11c Antigen) RN - 0 (Cell Adhesion Molecules) RN - 0 (HLA-DR Antigens) RN - 0 (Lipopolysaccharide Receptors) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 1.14.13.39 (NOS3 protein, human) RN - EC 1.14.13.39 (Nitric Oxide Synthase) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) SB - IM MH - Aorta/cytology MH - Apoptosis/physiology MH - CD11c Antigen/biosynthesis MH - Cell Adhesion/physiology MH - Cell Adhesion Molecules/physiology MH - Cell Lineage MH - Cell Movement/*physiology MH - Cells, Cultured MH - Dendritic Cells/chemistry/metabolism/*physiology MH - Endothelium/*chemistry/metabolism/physiology MH - Endothelium, Vascular/cytology/metabolism/physiology MH - HLA-DR Antigens/biosynthesis MH - Humans MH - Lipopolysaccharide Receptors/biosynthesis MH - Nitric Oxide/metabolism/physiology MH - Nitric Oxide Synthase/metabolism MH - Nitric Oxide Synthase Type III MH - Oxygen Consumption/physiology MH - Skin/blood supply/cytology MH - Stem Cells/chemistry/metabolism/physiology EDAT- 2002/11/12 04:00 MHDA- 2002/12/05 04:00 CRDT- 2002/11/12 04:00 PHST- 2002/11/12 04:00 [pubmed] PHST- 2002/12/05 04:00 [medline] PHST- 2002/11/12 04:00 [entrez] AID - 10.1161/01.atv.0000036418.04998.d5 [doi] PST - ppublish SO - Arterioscler Thromb Vasc Biol. 2002 Nov 1;22(11):1817-23. doi: 10.1161/01.atv.0000036418.04998.d5.