A porphyrin-based metallacage for enhanced photodynamic therapy

被引：25
|
作者：
Jiao, Jingjing [1 ]
He, Jing [1 ]
Li, Mengmeng [1 ]
Yang, Jingxia [1 ]
Yang, Hong [1 ]
Wang, Xiaoqing [2 ]
Yang, Shiping [1 ]
机构：
[1] Shanghai Normal Univ, Shanghai Frontiers Sci Ctr Biomimet Catalysis, Key Lab Resource Chem, Minist Educ, Shanghai 200234, Peoples R China
[2] North Univ China, Coll Sci, Dept Chem, Taiyuan 030051, Peoples R China
来源：
NANOSCALE | 2022年 / 14卷 / 17期
基金：
中国国家自然科学基金;
关键词：
CAGE;
D O I：
10.1039/d1nr08293k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, we designed an effective nanoplatform to improve the photodynamic therapy (PDT) of porphyrins. Combining a porphyrin-based metallacage (PM), hyaluronidase (HAase) and DSPE-mPEG2000 together, the nanoparticle (PM@HAase-mPEG) showed enhanced PDT efficacy. The PM improved the stability of the porphyrin, avoided its aggregation and provided cavities to concentrate oxygen molecules, which was beneficial for enhancing PDT. HAase degraded HA to increase the intracellular accumulation of nanoparticles, normalized blood vessels and relieved hypoxia in tumors. PM@HAase-mPEG inhibited the growth of tumors in a 4T1 mouse model by the generated singlet oxygen with excellent PDT efficacy. This study resolved the problems of the instability of PSs, less cellular accumulation of drugs, and tumor hypoxia that limited the anti-tumor application of PDT.
引用
收藏
页码：6373 / 6383
页数：11
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