J. Mater. Sci. Technol. ›› 2023, Vol. 152: 159-168.DOI: 10.1016/j.jmst.2022.12.039

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Multifunctional metal-polyphenol nanocomposite for melanoma targeted photo/chemodynamic synergistic therapy

Di Chuana,1, Huan Houa,1, Yuelong Wangb, Min Mua, Jinglun Lic, Yangmei Rena, Na Zhaod, Bo Hand,*, Haifeng Chenb, Gang Guoa,*   

  1. aState Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China;
    bDepartment of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China;
    cDepartment of Neurology, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China;
    dSchool of Pharmacy, Shihezi University, and Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, Shihezi 832002, China
  • Received:2022-05-24 Revised:2022-11-22 Accepted:2022-12-04 Published:2023-07-20 Online:2023-02-19
  • Contact: *E-mail addresses: hanbo@shzu.edu.cn (B. Han), guogang@scu.edu.cn (G. Guo).
  • About author:1These authors contributed equally to this work.

Abstract: Due to the hypoxic state of the tumor microenvironment (TME), photodynamic therapy (PDT) suffers from insufficient ROS production. The metal-polyphenol network-mediated Fenton reaction can generate reactive oxygen species (ROS) by consuming H2O2 in TME, improving the inadequate ROS generation problem of PDT. Therefore, synergistic therapy combining PDT and Fenton response-based CDT is a promising approach for cancer treatment. Herein, a metal-polyphenol nanocomposite was deposited with gallic acid grafted hyaluronic acid and Fe3+ to contrast a Ce6 nano-delivery system (Ce6@HSF NPs) for melanoma synergistic therapy. Ce6@HSF NPs could be used as a Fenton reagent to induce the ·OH production and enhance the PDT effect of Ce6 to a certain extent. After 4 h of cellular uptake, the fluorescence intensity of Ce6 in the Ce6@HSF NPs group was higher than 3 times that in the Ce6 group. The intracellular ROS generation level of the Ce6@HSF NPs (L) group combining CDT and PDT was higher than that of the Ce6 group and Ce6@HSF NPs group. In vitro and in vivo anti-melanoma studies show that Ce6@HSFNPs (L) group exhibited better anti-melanoma than other groups. Together, Ce6@HSF NPs provide a promising synergistic treatment potential for melanoma.

Key words: Photodynamic therapy, Chemodynamic therapy, Fenton reaction, Metal-polyphenol network