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键。CS 衍生物胶束连接靶向基团后,可促进胶束的靶                               66(4):514-520.
        向分布,从而降低肿瘤细胞的耐药性并减小药物毒                             [ 5 ]  THOTAKURA N,DADARWAL M,KUMAR R,et al. Chi-
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        性 。Qian Q 等 研究发现,K237 多肽功能化的 CS-聚                       tosan-palmitic acid based polymeric micelles as promising
        N-异丙基丙烯酰胺胶束可用作药物载体包载 PTX。该                              carrier for circumventing pharmacokinetic and drug deliv-
        研究结果表明,上述CS胶束具有良好的生物相容性,且                               ery concerns of tamoxifen[J]. Int J Biol Macromol,2017.
                                                                DOI:10.1016/j.ijbiomac.2017.05.016.
        比无肽修饰的胶束能更准确地靶向过度表达KDR/Flk-1
                                                           [ 6 ]  LIANG N,SUN S,HONG J,et al. In vivo pharmacokinet-
        蛋白的人乳腺癌 MDA-MB-231 细胞,从而有效抑制乳
                                                                ics,biodistribution and antitumor effect of paclitaxel-load-
        腺癌细胞生长。Cheng LC等 制备了包载PTX的叶酸-
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                                                                ed micelles based on alpha-tocopherol succinate-modified
        胆固醇-CS(FACC)纳米胶束,并利用HeLa(叶酸受体阳
                                                                chitosan[J]. Drug Deliv,2016,23(8):2651-2660.
        性)和A549(叶酸受体阴性)细胞测定了FACC胶束的肿
                                                           [ 7 ]  THAKUR VK,THAKUR MK. Recent advances in green
        瘤靶向特异性。结果表明,FACC 胶束对上述肿瘤细胞
                                                                hydrogels from lignin:a review[J]. Int J Biol Macromol,
        的靶向性和毒性均明显高于 PTX 注射液。谢贻珽 合                              2015. DOI:10.1016/j.ijbiomac.2014.09.044.
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        成了 Angiopep-2 修饰的 CS-SA 载药胶束,研究结果显                 [ 8 ]  LEE SW,CHANG DH,SHIM MS,et al. Ionically fixed
        示,随着Angiopep-2修饰量的增加,雄性裸鼠脑内SA浓                          polymeric nanoparticles as a novel drug carrier[J]. Pharm
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        衍生物胶束经靶向配体修饰后在肿瘤治疗中也有较为                            [ 9 ]  LIU GY,LI K,WANG H. Polymeric micelles based on
        乐观的应用前景。                                                PEGylated chitosan-g-lipoic acid as carrier for efficient in-
        3 结语                                                    tracellular drug delivery[J]. J Biomater Appl,2017,31(7):

            CS衍生物胶束凭借优良的生物相容性功能修饰残                              1039-1048.
        基的生理学特性,在纳米给药系统中展现出独特优势,                           [10]  ULLAH F,JAVED F,OTHMAN MBH,et al. Star-shaped
                                                                self-assembled micelles of block copolymer chitosan-co-
        为新型载体材料的开发提供了有价值的参考。目前,CS
                                                                poly(ethylene glycol)methyl ether methacrylate hydrogel
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        相关文献大多以体外研究为主,且对详细作用机制的研
                                                           [11]  THAKUR VK,SINGHA AS,THAKUR MK. In-air graft
        究较少;此外,若要将其成功应用于临床,尚需对胶束的
                                                                copolymerization of ethyl acrylate onto natural cellulosic
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        中国药房    2020年第31卷第6期                                               China Pharmacy 2020 Vol. 31 No. 6  ·767  ·
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