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ACS Biomaterials Science & Engineering

ACS Biomaterials Science & Engineering

IF: 5.4
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GSH-Responsive and Hypoxia-Activated Multifunctional Nanoparticles for Synergetically Enhanced Tumor Therapy

Published:31 March 2022 DOI: 10.1021/acsbiomaterials.2c00076
Chunyang Liu, Sihan Jia, Li Tu, Peiyan Yang, Yange Wang, Sunkui Ke, Wei Shi* and Shefang Ye*, 

Abstract

The integration of reactive oxygen species (ROS)-based chemodynamic therapy (CDT) and photodynamic therapy (PDT) has attracted enormous attention for synergistic antitumor therapies. However, the strategy is severely hampered by tumor hypoxia and overproduced antioxidant glutathione (GSH) in the tumor microenvironment. Inspired by the concept of metal coordination-based nanomedicines, we proposed an effective strategy for synergistic cancer treatment in response to the special tumor microenvironmental properties. Herein, we present novel metal-coordinated multifunctional nanoparticles (NPs) by the Cu2+-triggered assembly of photosensitizer indocyanine green (ICG) and hypoxia-activated anticancer prodrug tirapazamine (TPZ) (Cu-ICG/TPZ NPs). After accumulating within tumor sites via the enhanced permeability and retention (EPR) effect, the Cu-ICG/TPZ NPs were capable of triggering a cascade of combinational therapeutic reactions, including hyperthermia, GSH elimination, and Cu+-mediated ?OH generation and the subsequent hypoxia-triggered chemotherapeutic effect of TPZ, thus achieving synergistic tumor therapy. Both in vitro and in vivo evaluations suggested that the multifunctional Cu-ICG/TPZ NPs could realize satisfactory therapeutic efficacy with excellent biosafety. These results thus suggested the great potential of Cu-ICG/TPZ NPs to serve as a metallodrug nanoagent for synergetically enhanced tumor treatment.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
3-AMINO-1,2,4-BENZOTRIAZINE-1,4-DIOXIDE 27314-97-2 C7H6N4O2 190 suppliers $15.00-$3680.00
3-AMINO-1,2,4-BENZOTRIAZINE-1,4-DIOXIDE 27314-97-2 C7H6N4O2 190 suppliers $15.00-$3680.00
3-AMINO-1,2,4-BENZOTRIAZINE-1,4-DIOXIDE 27314-97-2 C7H6N4O2 190 suppliers $15.00-$3680.00
3-AMINO-1,2,4-BENZOTRIAZINE-1,4-DIOXIDE 27314-97-2 C7H6N4O2 190 suppliers $15.00-$3680.00

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