中华医学超声杂志

应用化学 ›› 2021, Vol. 38 ›› Issue (2): 0-0.

• 封面图片 •    下一篇

铁掺杂的聚2-硝基-1,4-苯二胺纳米球的制备及在光热/光动力/化学动力学肿瘤治疗中的应用

周莹1, 刘赛男2,3, 蔡砺寒2,3, 张健夫1*, 逄茂林2,3*   

  1. 1长春理工大学化学与环境工程学院,长春 130022
    2中国科学院长春应用化学研究所,稀土资源利用国家重点实验室,长春 130022
    3中国科学技术大学,合肥 230026
  • 收稿日期:2020-08-31 接受日期:2020-11-04 出版日期:2021-02-01 发布日期:2021-04-10
  • 通讯作者: *E-mail:zhangjianfu@cust.edu.cn; mlpang@ciac.ac.cn
  • 基金资助:
    国家自然科学基金(No.21471145)、吉林省科技发展规划项目(No.20170101179JC)和中科院“百人计划”资助

Ion-doped Poly(2-nitro-1,4-phenylenediamine) Nanospheres for Synergistic Photo- and Chemo-Dynamic Therapy

ZHOU Ying1, LIU Sai-Nan2,3, CAI Li-Han2,3, ZHANG Jian-Fu1*, PANG Mao-Lin2,3*   

  1. 1School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China
    2State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022, China
    3University of Science and Technology of China, Hefei 230026, China
  • Received:2020-08-31 Accepted:2020-11-04 Published:2021-02-01 Online:2021-04-10
  • Supported by:
    National Natural Science Foundation of China (No. NSFC 21471145), the Science and Technology Development Planning Project of Jilin Province (No.20170101179JC), and the “Hundred Talents Program” of Chinese Academy of Science

被引次数

2

摘要： 肿瘤微环境(TME)的复杂性,使得单一治疗方式很难实现完全治愈。 为此,构建了一种负载吲哚菁绿(ICG)的铁掺杂的聚2-硝基-1,4-苯二胺多功能纳米球Fe-PNPD-ICG(FPIs),用于光热(PTT)/光动力(PDT)/化学动力学(CDT)的联合治疗。 在808 nm激光器照射下,ICG作为光敏剂可以产生单线态氧,铁掺杂的聚2-硝基-1,4-苯二胺纳米球作为光热剂具有36.65%的光热转换效率。 FPIs一旦内化到肿瘤内,由Fe3+/Fe2+转化引发Fenton反应产生·OH实现化学动力学治疗,反应过程中可以清除TME中过表达的谷胱甘肽(GSH),从而降低肿瘤中的抗氧化能力。 同时,产生的氧气可以改善TME中乏氧情况,增强PDT的治疗效果。 因此,FPIs是PTT/PDT/CDT联合治疗的一种理想材料,在肿瘤治疗中具有潜在的应用前景。

关键词: 聚2-硝基-1,4-苯二胺, 光热治疗, 光动力治疗, 化学动力学治疗

Abstract: The complexity of the tumor microenvironment (TME) makes it difficult to completely eliminate tumors with a single treatment. Herein, ion-doped poly(2-nitro-1,4-phenylenediamine) multifunctional nanospheres loaded with indocyanine green (ICG) are constructed for synergistic cancer therapy by photothermal therapy (PTT)/photodynamic therapy (PDT) /chemo-dynamic therapy (CDT). Under 808 nm laser irradiation, ICG as a photosensitizer could generate 1O2 and Fe-PNPD acts as a photothermal agent with a photothermal conversion efficiency of 36.65%. Once Fe-PNPD-ICG (FPIs) is internalized into the cancer cells, it triggers the Fenton reaction to produce ·OH, and clears the over-expressed glutathione (GSH) in TME, thereby reducing the antioxidant capacity in the tumor. At the same time, the generated oxygen can reduce hypoxia in TME and enhance the therapeutic effect of PDT. FPIs is an ideal candidate for synergistic PTT/PDT/CDT therapy, and has broad application prospects for tumor therapy.

Key words: Polynitro-1,4-phenylenediamine, Photothermal therapy, Photodynamic therapy, Chemo-dynamic therapy

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