Light-Induced Hypoxia-Triggered Living Nanocarriers for Synergistic Cancer Therapy

ACS Applied Materials & Interfaces
Wenliang WangXifei Yu

Abstract

Living drug delivery system has been proposed as new concept materials because it is able to communicate with biological system, sense subtle changes in body microenvironment caused by disease, and then make rapid response to cure in the early stage of disease. Herein, taking full advantage of the tumor hypoxia physiology and successive effects of photodynamic therapy (PDT), we designed a new living delivery system via combining the PDT and hypoxia-responsive chemotherapy, abbreviated as Ce6-PEG-Azo-PCL. Then, according to the fact that oxygen can be converted into reactive oxygen species during irradiation of the photosensitizer, tumor cells could be killed after the poly(ethylene glycol) (PEG) conjugated photosensitizer chlorine e6 was irradiated at the tumor site. What is more, the continuous consumption of oxygen could further amplify the hypoxia condition of tumor and trigger the disassembly of hypoxia-responsive azobenzene bridges at the tumor site to release loaded chemotherapeutics drugs doxorubicin. The ongoing collaboration with PDT and hypoxia-responsive chemotherapy provided an integrated therapeutic effect in vitro and in vivo to suppress tumor growth.

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Citations

Nov 2, 2019·Pharmaceuticals·Ludivine LarueCéline Frochot
Feb 16, 2019·Current Medicinal Chemistry·Xinyu HeZiyang Cao
Sep 29, 2020·Advanced Healthcare Materials·Huige ZhouChunying Chen
Dec 6, 2018·Pharmaceuticals·Tuanwei Li, Lifeng Yan
Feb 23, 2020·Beilstein Journal of Nanotechnology·Maxime DemazeauBarbara Lonetti
Aug 28, 2020·Angewandte Chemie·Shiyu ZhouXiabin Jing
Jun 3, 2021·Pharmaceutics·Yuseon ShinKyungtaek Oh
Aug 25, 2021·ACS Biomaterials Science & Engineering·Kun LiYuanyu Huang
Jun 15, 2019·ACS Applied Materials & Interfaces·Qi YanYanjun Zhao

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