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葡萄糖转运体和叶酸受体介导的载有阿霉素的普朗尼克P105聚合物胶束用于脑肿瘤治疗。

Glucose transporter and folic acid receptor-mediated Pluronic P105 polymeric micelles loaded with doxorubicin for brain tumor treating.

作者信息

Niu Jiangxiu, Wang Aidong, Ke Zhongcheng, Zheng Zubiao

机构信息

Department of Chemistry and Chemical Engineering, Huangshan University , Huangshan , People's Republic of China.

出版信息

J Drug Target. 2014 Sep;22(8):712-23. doi: 10.3109/1061186X.2014.913052. Epub 2014 May 7.


DOI:10.3109/1061186X.2014.913052
PMID:24806516
Abstract

In this study, glucose transporter and folic acid (FA) receptor-mediated Pluronic P105 polymeric micelles loaded with DOX (GF-DOX) were prepared for enhancing the blood-brain barrier (BBB) transportation and improving the drug accumulation in the glioma cells. The pH-triggered DOX release of GF-DOX indicating a comparatively fast drug release at weak acidic condition and stable state of the carrier at physiological environment. The transport of GF-DOX across the in vitro BBB model showed that GF-DOX exhibited higher BBB transportation ability with the transporting ratio of 21.47% in 4 h. The carrier was internalized into C6 glioma cells upon crossing the BBB model for the combined effect of the brain targeting by transportation of glucose transporter and active tumor cell targeting by FA receptor-mediated endocytosis. Moreover, minimized weight changes and high suppression ratio of tumor growth were observed after intravenous injection of GF-DOX. In conclusion, the glucose transporter and FA dual-targeting micelles would provide a safe and effective strategy for new modalities to treat brain tumor.

摘要

在本研究中,制备了负载阿霉素(DOX)的葡萄糖转运体和叶酸(FA)受体介导的普朗尼克P105聚合物胶束(GF-DOX),以增强血脑屏障(BBB)转运并改善胶质瘤细胞中的药物蓄积。GF-DOX的pH触发型阿霉素释放表明在弱酸性条件下药物释放相对较快,且载体在生理环境中处于稳定状态。GF-DOX跨体外血脑屏障模型的转运表明,GF-DOX表现出更高的血脑屏障转运能力,4小时内转运率为21.47%。通过葡萄糖转运体转运实现脑靶向以及FA受体介导的内吞作用实现活性肿瘤细胞靶向的联合效应,载体在穿过血脑屏障模型后被内化到C6胶质瘤细胞中。此外,静脉注射GF-DOX后观察到体重变化最小且肿瘤生长抑制率高。总之,葡萄糖转运体和FA双靶向胶束将为治疗脑肿瘤的新方法提供一种安全有效的策略。

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Glucose transporter and folic acid receptor-mediated Pluronic P105 polymeric micelles loaded with doxorubicin for brain tumor treating.

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[7]
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[8]
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[9]
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[10]
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