Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 8, Issue 48, Pages 11082-11089Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tb01964j
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Funding
- National Natural Science Foundation of China [5197116, 81671829]
- Natural Science Foundation of Zhejiang Province [LY20E020017]
- Fund of Key Laboratory of Advanced Materials of Ministry of Education [53220330118]
- Fundamental Research Funds for the Provincial Universities of Zhejiang [RF-A2019004]
- Tsinghua University Initiative Scientific Research Program [20193080008]
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With the inspiration to develop new cancer nanotherapeutics by repurposing old drugs, in the current study, a novel two dimensional nanomedicine namely Mn doped, dihydroartemisinin (DHA) loaded layered double hydroxide (MnMgFe-LDH/DHA) with peroxide self-supplying properties for enhanced photothermal-chemodynamic therapy was proposed. Such nanostructures could be synthesized by a simple coprecipitation method, and the as-prepared MnMgFe-LDH/DHA exhibits excellent photothermal properties with a photothermal conversion efficiency up to 10.7%. Besides, the in situ reaction between the released DHA and Fe2+/Mn2+ produced by the degradation of LDH can lead to a burst of intracellular reactive oxygen species (ROS) by Fenton-like reactions. Furthermore, the in vivo experiments demonstrate that MnMgFe-LDH/DHA exhibits a remarkable chemodynamic/photothermal therapy (CDT/PTT) synergistic effect on tumor treatment with negligible damage to normal tissues. Finally, this research provides a smart strategy to construct a DHA repurposing nanomedicine for tumor specific treatment.
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