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题目:: Therapeutic reendothelialization by induced pluripotent stem cells after vascular injury--brief report.
作者:: Yamamoto(Takashi),Shibata(Rei),Ishii(Masakazu),Kanemura(Noriyoshi),Kito(Tetsutaro),Suzuki(Hirohiko),Miyake(Hiroshi),Maeda(Kengo),Tanigawa(Tohru),Ouchi(Noriyuki),Murohara(Toyoaki)
状态:: 发布时间2013-08-15 , 更新时间 2013-08-15
期刊:: Arterioscler Thromb Vasc Biol
摘要:: Endothelial damage is an early requisite step for atherosclerosis after vascular injury. It has been reported that vascular wall cells can develop from induced pluripotent stem (iPS) cell-derived fetal liver kinase-1-positive (Flk-1(+)) cells. Here, we investigated the efficacies of intravenously administered iPS cell-derived Flk-1(+) cells on reendothelialization and neointimal hyperplasia in a mouse model of vascular injury.,Femoral arteries of KSN nude mice were injured using a steel wire. Mouse iPS cell-derived Flk-1(+) or Flk-1(-) cells were intravenously injected into those mice at 24 hours after vascular injury. Delivery of iPS cell-derived Flk-1(+) cells significantly attenuated neointimal hyperplasia compared with controls. Evans blue staining of the injured vessel revealed that administration of iPS cell-derived Flk-1(+) significantly enhanced reendothelialization compared with the Flk-1(-) cell control group. Recruitment of PKH26-labeled iPS cell-derived Flk-1(+) cells to the site of injury was also detectable. Expression level of CXCR4 in iPS cell-derived Flk-1(+) cells was 7.5-fold higher than that of iPS cell-derived Flk-1(-) cells. Stromal cell-derived factor-1α treatment significantly enhanced adhesion and migration of iPS cell-derived Flk-1(+) cells to the endothelia, but these were not observed in Flk-1(-) cells.,Intravenously administered iPS cell-derived Flk-1(+) cells are recruited to the site of vascular injury, thereby enhancing reendothelialization followed by suppression of neointimal hyperplasia. Administration of iPS cell-derived Flk-1(+) cells is a potentially useful therapeutic means for vascular dysfunction and prevention of restenosis after angioplasty.
语言:: eng
DOI:: 10.1161/ATVBAHA.113.301313

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