Amelioration of cerebral ischemia-reperfusion injury based on liposomal drug delivery system with asialo-erythropoietin

被引:88
作者
Ishii, Takayuki [1 ,2 ,3 ]
Asai, Tomohiro [1 ,2 ]
Oyama, Dai [1 ,2 ]
Fukuta, Tatsuya [1 ,2 ]
Yasuda, Nodoka [1 ,2 ]
Shimizu, Kosuke [1 ,2 ]
Minamino, Tetsuo [4 ]
Oku, Naoto [1 ,2 ]
机构
[1] Univ Shizuoka, Sch Pharmaceut Sci, Dept Med Biochem, Suruga Ku, Shizuoka 4228526, Japan
[2] Univ Shizuoka, Sch Pharmaceut Sci, Global COE, Suruga Ku, Shizuoka 4228526, Japan
[3] JSPS, Chiyoda Ku, Tokyo 1028472, Japan
[4] Osaka Univ, Grad Sch Med, Dept Cardiovasc Med, Suita, Osaka 5650871, Japan
基金
日本学术振兴会;
关键词
Ischemic stroke; Liposome; Middle cerebral artery occlusion; Nanoparticle; Neuroprotection; BLOOD-BRAIN-BARRIER; FOCAL ISCHEMIA; ANIMAL-MODELS; DISRUPTION; RECEPTOR; ASIALOERYTHROPOIETIN; NEUROPROTECTION; PERMEABILITY; EXPRESSION; CANCER;
D O I
10.1016/j.jconrel.2012.02.004
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cerebral ischemia-reperfusion (I/R) injury induces secondary cerebral damage. As drugs for treating this type of injury have shown poor efficacy and adverse side effects in clinical trials, a novel therapeutic strategy has been long awaited. In this study, we focused on the disruption of the blood-brain barrier after stroke, and applied a liposomal drug delivery system (DDS) designed to enhance the pharmacological effect of the neuro-protectant and to avoid side effects. PEGylated liposomes were injected at varying time after the start of reperfusion in transient middle cerebral artery occlusion (t-MCAO) model rats. The results showed PEGylated liposomes accumulated in the ischemic hemisphere at an early stage after reperfusion and were retained in the lesion for at least 24 h after injection. We also investigated the effectiveness of asialo-erythropoietin (AEPO)-modified PEGylated liposomes (AEPO-liposomes) in treating the cerebral I/R injury. AEPO-liposome treatment significantly reduced TTC-defined cerebral legion following cerebral I/R injury, and ameliorated motor function compared with vehicle and AEPO treatment. In conclusion, these results indicate that AEPO-liposomes are a promising liposomal formulation for protecting the brain fromI/R injury, and that this liposomal DDS has potential as a novel strategy for the treatment of cerebral I/R injury. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码:81 / 87
页数:7
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