共 21 条
Functionalized Amphiphilic Hyperbranched Polymers for Targeted Drug Delivery
被引:241
作者:

Chen, Si
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机构:
Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China

Zhang, Xian-Zheng
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机构:
Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China

Cheng, Si-Xue
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机构:
Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China

Zhuo, Ren-Xi
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机构:
Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China

Gu, Zhong-Wei
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机构:
Sichuan Univ, Natl Engn Res Ctr Biomat, Chengdu 610064, Peoples R China Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China
机构:
[1] Wuhan Univ, Dept Chem, Minist Educ, Key Lab Biomed Polymers, Wuhan 430072, Peoples R China
[2] Sichuan Univ, Natl Engn Res Ctr Biomat, Chengdu 610064, Peoples R China
基金:
中国国家自然科学基金;
关键词:
D O I:
10.1021/bm800371n
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Amphiphilic hyperbranched core-shell polymers with folate moieties as the targeting groups were synthesized and characterized. The core of the amphiphilic polymers was hyperbranched aliphatic polyester Boltorn H40. The inner part and the outer shell of the amphiphilic polymers were composed of hydrophobic poly(epsilon-caprolactone) segments and hydrophilic poly(ethylene glycol) (PEG) segments, respectively. To achieve tumor cell targeting property, folic acid was further incorporated to the surface of the amphiphilic polymers via a coupling reaction between the hydroxyl group of the PEG segment and the carboxyl group of folic acid. The polymers were characterized by H-1 NMR, C-13 NMR, and combined size-exclusion chromatography and multiangle laser light scattering analysis. The nanoparticles of the amphiphilic polymers prepared by dialysis method were characterized by transmission electron microscopy and particle size analysis. Two antineoplastic drugs, 5-fluorouracil and paclitaxel, were encapsulated into the nanoparticles. The drug release property and the targeting of the drug-loaded nanoparticles to different cells were evaluated in vitro. The results showed the drug-loaded nanoparticles exhibited enhanced cell inhibition because folate targeting increased the cytotoxicity of drug-loaded nanoparticles against folate receptor expressing tumor cells.
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页码:2578 / 2585
页数:8
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