pH敏感型仿病毒载药系统的构建与性能研究
发布时间:2021-01-14 16:14
近年来,受到病毒结构和功能的启发,立足于从结构仿生到功能仿生的角度,一系列模拟病毒组分和结构的新型纳米装配体已被很好地构建,并成功地提高了生物活性分子的递送效率。透明质酸(HA)是一类广泛分布于细胞外基质的聚阴离子多糖,研究发现,大多数恶性肿瘤细胞表面过度表达研究发现,大多数恶性肿瘤细胞表面过度表达HA的受体,如CD44,RHAMM和LYVE-1。值得注意的是,在各种恶性肿瘤组织中,透明质酸酶(Hyaluronidase)的水平也是偏高的,因此HA很容易降解成低分子量的葡萄糖醛酸和N—乙酰氨基葡萄糖的双糖重复单元片段。因此,HA不仅是载体的可降解保护层,还可作为配体靶向于特殊的细胞受体。在此基础上本课题以透明质酸为主体构建了pH敏感的模拟病毒外壳的材料HA-Hyd-DOX,并合成了mPEG-Hyd-DOX作为对照。以这种材料构建的仿病毒衣壳的聚合物胶束可有效的抵抗蛋白质相互作用并延长血液循环时间。此外,HA-Hyd-DOX通过CD44受体介导的内吞作用可以有效的被癌细胞摄取,而大大的减少成纤维细胞的摄取。同时腙键(Hyd)在溶酶体中pH=5的条件下可以被破坏,DOX被释放出来从溶酶体中...
【文章来源】:青岛大学山东省
【文章页数】:68 页
【学位级别】:硕士
【部分图文】:
HA-Hyd-DOX和mPEG-Hyd-DOX的1HNMR图谱
mPEG-Hyd-DOX的质谱
9图 1.11 HA-Hyd-DOX 质谱Fig.1.11 MALDI-TOF mass spectra of HA-Hyd-DOXmPEG-Hyd-DOX(图 1.10)的 MALDI-TOF 质谱显示与 mPEG-Hyd 相比具有 632
【参考文献】:
期刊论文
[1]Micelle or polymersome formation by PCL-PEG-PCL copolymers as drug delivery systems[J]. Chunyan Hu,Zhuo Chen,Shengjie Wu,Yanfeng Han,Hai Wang,Hongfan Sun,Deling Kong,Xigang Leng,Chun Wang,Linhua Zhang,Dunwan Zhu. Chinese Chemical Letters. 2017(09)
[2]Recent advances of transformable nanoparticles for theranostics[J]. Kuo Zhang,Pei-Pei Yang,Jing-Ping Zhang,Lei Wang,Hao Wang. Chinese Chemical Letters. 2017(09)
[3]PEGylated BODIPY assembling fluorescent nanoparticles for photodynamic therapy[J]. Yu Zhu,Wenhai Lin,Wei Zhang,Yuqin Feng,Zhineng Wu,Li Chen,Zhigang Xie. Chinese Chemical Letters. 2017(09)
[4]Precisely installing gold nanoparticles at the core/shell interface of micellar assemblies of triblock copolymers[J]. Kangning Zhu,Zhiyuan Zhu,Haiou Zhou,Jingyan Zhang,Shiyong Liu. Chinese Chemical Letters. 2017(06)
[5]A novel approach for Apocynum venetum/cotton blended fabrics modification by cationic polymer nanoparticles[J]. Xiu-Ming Liu,Cai-Yan Li,Kuan-Jun Fang,Da-Wu Shu. Chinese Chemical Letters. 2017(05)
本文编号:2977156
【文章来源】:青岛大学山东省
【文章页数】:68 页
【学位级别】:硕士
【部分图文】:
HA-Hyd-DOX和mPEG-Hyd-DOX的1HNMR图谱
mPEG-Hyd-DOX的质谱
9图 1.11 HA-Hyd-DOX 质谱Fig.1.11 MALDI-TOF mass spectra of HA-Hyd-DOXmPEG-Hyd-DOX(图 1.10)的 MALDI-TOF 质谱显示与 mPEG-Hyd 相比具有 632
【参考文献】:
期刊论文
[1]Micelle or polymersome formation by PCL-PEG-PCL copolymers as drug delivery systems[J]. Chunyan Hu,Zhuo Chen,Shengjie Wu,Yanfeng Han,Hai Wang,Hongfan Sun,Deling Kong,Xigang Leng,Chun Wang,Linhua Zhang,Dunwan Zhu. Chinese Chemical Letters. 2017(09)
[2]Recent advances of transformable nanoparticles for theranostics[J]. Kuo Zhang,Pei-Pei Yang,Jing-Ping Zhang,Lei Wang,Hao Wang. Chinese Chemical Letters. 2017(09)
[3]PEGylated BODIPY assembling fluorescent nanoparticles for photodynamic therapy[J]. Yu Zhu,Wenhai Lin,Wei Zhang,Yuqin Feng,Zhineng Wu,Li Chen,Zhigang Xie. Chinese Chemical Letters. 2017(09)
[4]Precisely installing gold nanoparticles at the core/shell interface of micellar assemblies of triblock copolymers[J]. Kangning Zhu,Zhiyuan Zhu,Haiou Zhou,Jingyan Zhang,Shiyong Liu. Chinese Chemical Letters. 2017(06)
[5]A novel approach for Apocynum venetum/cotton blended fabrics modification by cationic polymer nanoparticles[J]. Xiu-Ming Liu,Cai-Yan Li,Kuan-Jun Fang,Da-Wu Shu. Chinese Chemical Letters. 2017(05)
本文编号:2977156
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