PMID- 15059933 OWN - NLM STAT- MEDLINE DCOM- 20041007 LR - 20061115 IS - 1524-4571 (Electronic) IS - 0009-7330 (Linking) VI - 94 IP - 9 DP - 2004 May 14 TI - Arteriogenesis proceeds via ICAM-1/Mac-1- mediated mechanisms. PG - 1179-85 AB - Monocyte adhesion to shear stress-activated endothelium stands as an important initial step during arteriogenesis (collateral artery growth). Using multiple approaches, we tested the hypothesis that monocyte adhesion via intercellular adhesion molecule-1 (ICAM-1) and selectin interactions is essential for adaptive arteriogenesis. Forty-eight New Zealand White rabbits received either solvent, monocyte chemoattractant protein-1 (MCP-1) alone, MCP-1 plus ICAM-mab, or MCP-1 plus an IgG2a isotype control via osmotic minipumps. After 7 days, collateral conductance was evaluated: solvent 4.01 (mL/min per 100 mm Hg), MCP-1 plus ICAM-mab 8.04 (versus solvent P=NS), and MCP-1 alone 33.11 (versus solvent P<0.05). Furthermore, the right femoral arteries of ICAM-1-/-, Mac-1-/- and mice having defective selectin interactions (FT4/7-/-) as well as their corresponding controls were ligated. One week later, perfusion ratios were determined by the use of fluorescent microspheres. FT4/7-/- mice did not show any significant difference in perfusion restoration whereas ICAM-1-/- and Mac-1-/- mice had a significant reduction in arteriogenesis as compared with matching controls (FT4/7-WT 37+/-9%, FT4/7-/- 32+/-3%, P=0.31; C57BL/6J 59+/-9%, ICAM-1-/- 36+/-8%, P<0.05; Mac-1-/- 42+/-3%, P<0.05). ICAM-1/Mac-1-mediated monocyte adhesion to the endothelium of collateral arteries is an essential step for arteriogenesis, whereas this process can proceed via selectin interaction independent mechanisms. Furthermore, in vivo treatment with monoclonal antibodies against ICAM-1 totally abolishes the stimulatory effect of MCP-1 on collateral artery growth, suggesting that the mechanism of the MCP-1-induced arteriogenesis proceeds via the localization of monocytes rather than the action of the MCP-1 molecule itself. FAU - Hoefer, Imo E AU - Hoefer IE AD - Research Group for Experimental and Clinical Arteriogenesis at the Department of Cardiology, University of Freiburg, Freiburg, Germany. hoefer@med1.ukl.uni-freiburg.de FAU - van Royen, Niels AU - van Royen N FAU - Rectenwald, John E AU - Rectenwald JE FAU - Deindl, Elisabeth AU - Deindl E FAU - Hua, Jing AU - Hua J FAU - Jost, Marco AU - Jost M FAU - Grundmann, Sebastian AU - Grundmann S FAU - Voskuil, Michiel AU - Voskuil M FAU - Ozaki, C Keith AU - Ozaki CK FAU - Piek, Jan J AU - Piek JJ FAU - Buschmann, Ivo R AU - Buschmann IR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. DEP - 20040401 PL - United States TA - Circ Res JT - Circulation research JID - 0047103 RN - 0 (Antibodies, Monoclonal) RN - 0 (Chemokine CCL2) RN - 0 (Immunoglobulin G) RN - 0 (Macrophage-1 Antigen) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Animals MH - Antibodies, Monoclonal/pharmacology MH - Cell Adhesion MH - Chemokine CCL2/*pharmacology MH - Endothelial Cells/cytology/drug effects/metabolism MH - Endothelium, Vascular/*cytology MH - Immunoglobulin G/pharmacology MH - Intercellular Adhesion Molecule-1/genetics/immunology/*physiology MH - Macrophage-1 Antigen/genetics/*physiology MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Microspheres MH - Monocytes/*cytology/drug effects/metabolism MH - Neovascularization, Physiologic/drug effects/genetics/*physiology MH - Rabbits MH - Random Allocation EDAT- 2004/04/03 05:00 MHDA- 2004/10/08 09:00 CRDT- 2004/04/03 05:00 PHST- 2004/04/03 05:00 [pubmed] PHST- 2004/10/08 09:00 [medline] PHST- 2004/04/03 05:00 [entrez] AID - 01.RES.0000126922.18222.F0 [pii] AID - 10.1161/01.RES.0000126922.18222.F0 [doi] PST - ppublish SO - Circ Res. 2004 May 14;94(9):1179-85. doi: 10.1161/01.RES.0000126922.18222.F0. Epub 2004 Apr 1.