An open source and reduce expenditure ROS generation strategy for chemodynamic/photodynamic synergistic therapy.

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ID: 106771
2020
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Abstract
The therapeutic effect of reactive oxygen species (ROS)-involved cancer therapies is significantly limited by shortage of oxy-substrates, such as hypoxia in photodynamic therapy (PDT) and insufficient hydrogen peroxide (HO) in chemodynamic therapy (CDT). Here, we report a HO/O self-supplying nanoagent, (MSNs@CaO-ICG)@LA, which consists of manganese silicate (MSN)-supported calcium peroxide (CaO) and indocyanine green (ICG) with further surface modification of phase-change material lauric acid (LA). Under laser irradiation, ICG simultaneously generates singlet oxygen and emits heat to melt the LA. The exposed CaO reacts with water to produce O and HO for hypoxia-relieved ICG-mediated PDT and HO-supplying MSN-based CDT, acting as an open source strategy for ROS production. Additionally, the MSNs-induced glutathione depletion protects ROS from scavenging, termed reduce expenditure. This open source and reduce expenditure strategy is effective in inhibiting tumor growth both in vitro and in vivo, and significantly improves ROS generation efficiency from multi-level for ROS-involved cancer therapies.
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liu2020annature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Liu, Conghui;Cao, Yu;Cheng, Yaru;Wang, Dongdong;Xu, Tailin;Su, Lei;Zhang, Xueji;Dong, Haifeng;
Journal Nature communications
Year 2020
DOI
10.1038/s41467-020-15591-4
URL
Keywords
paclitaxel inhalable drug delivery systems lung epithelial cells solid lipid microparticles stimuli-sensitive drug carriers superparamagnetic iron oxide nanoparticles (spion)

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