PMID- 12065319 OWN - NLM STAT- MEDLINE DCOM- 20020620 LR - 20190706 IS - 1524-4571 (Electronic) IS - 0009-7330 (Linking) VI - 90 IP - 11 DP - 2002 Jun 14 TI - Importance of monocyte chemoattractant protein-1 pathway in neointimal hyperplasia after periarterial injury in mice and monkeys. PG - 1167-72 AB - Neointimal hyperplasia is a major cause of restenosis after coronary intervention. Because vascular injury is now recognized to involve an inflammatory response, monocyte chemoattractant protein-1 (MCP-1) might be involved in underlying mechanisms of restenosis. In the present study, we demonstrate the important role of MCP-1 in neointimal hyperplasia after cuff-induced arterial injury. In the first set of experiments, placement of a nonconstricting cuff around the femoral artery of intact mice and monkeys resulted in inflammation in the early stages and subsequent neointimal hyperplasia at the late stages. We transfected with an N-terminal deletion mutant of the human MCP-1 gene into skeletal muscles to block MCP-1 activity in vivo. This mutant MCP-1 works as a dominant-negative inhibitor of MCP-1. This strategy inhibited early vascular inflammation (monocyte infiltration, increased expression of MCP-1, and inflammatory cytokines) and late neointimal hyperplasia. In the second set of experiments, the cuff-induced neointimal hyperplasia was found to be less in CCR2-deficient mice than in control CCR2(+/+) mice. The MCP-1/CCR2 pathway plays a central role in the pathogenesis of neointimal hyperplasia in cuffed femoral artery of mice and monkeys. Therefore, the MCP-1/CCR2 pathway can be a therapeutic target for human restenosis after coronary intervention. FAU - Egashira, Kensuke AU - Egashira K AD - Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. egashira@cardiol.med.kyushu-u.ac.jp FAU - Zhao, Qingwei AU - Zhao Q FAU - Kataoka, Chu AU - Kataoka C FAU - Ohtani, Kishou AU - Ohtani K FAU - Usui, Makoto AU - Usui M FAU - Charo, Israel F AU - Charo IF FAU - Nishida, Ken-Ichi AU - Nishida K FAU - Inoue, Shujiro AU - Inoue S FAU - Katoh, Makoto AU - Katoh M FAU - Ichiki, Toshihiro AU - Ichiki T FAU - Takeshita, Akira AU - Takeshita A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Circ Res JT - Circulation research JID - 0047103 RN - 0 (CCR2 protein, human) RN - 0 (Ccr2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) RN - 0 (Receptors, CCR2) RN - 0 (Receptors, Chemokine) SB - IM MH - Animals MH - Chemokine CCL2/blood/genetics/*physiology MH - Femoral Artery/*injuries/pathology MH - Gene Expression MH - Genotype MH - Humans MH - Hyperplasia MH - Immunohistochemistry MH - Macaca fascicularis MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Plasmids/genetics MH - RNA, Messenger/genetics/metabolism MH - Receptors, CCR2 MH - Receptors, Chemokine/genetics/metabolism MH - Signal Transduction MH - Time Factors MH - Transfection MH - Tunica Intima/metabolism/*pathology EDAT- 2002/06/18 10:00 MHDA- 2002/06/21 10:01 CRDT- 2002/06/18 10:00 PHST- 2002/06/18 10:00 [pubmed] PHST- 2002/06/21 10:01 [medline] PHST- 2002/06/18 10:00 [entrez] AID - 10.1161/01.res.0000020561.03244.7e [doi] PST - ppublish SO - Circ Res. 2002 Jun 14;90(11):1167-72. doi: 10.1161/01.res.0000020561.03244.7e.