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从而提高胶束对肿瘤细胞的靶向性,使更多的药物能够                                 2023,14:1157306.
          进 入 肿 瘤 细 胞 内 发 挥 杀 伤 作 用 。 此 外 ,MTX-oxi-           [ 6 ]  XU  X  Y,CHEN  M  X,JIANG  S,et  al.  Endoplasmic
          Ms@PTX/ICA+H2O2 对 细 胞 的 IC50 低 于 MTX-oxi-                reticulum-targeting iridium(Ⅲ) nanosonosensitizer ampli‐
          Ms@PTX/ICA,这 进 一 步 证 实 了 MTX-oxi-Ms@PTX/                 fies  immunogenic  cell  death  for  boosted  tumor  sono-
                                                                   immunotherapy[J].  Adv  Funct  Mater,2024,34(26):
          ICA具有ROS响应能力。在氧化应激条件下,胶束的外
                                                                   2314780.
          层水化层脱落,暴露出的靶向配体增强了肿瘤细胞对胶
                                                              [ 7 ]  SHI J F,WANG Y H,WU Y H,et al. Tumor microenvi‐
          束的摄取能力,同时也促进了药物的释放,协同增强了                                 ronment  ROS/pH  cascade-responsive  supramolecular
          抗肿瘤效果。体外摄取实验进一步验证了与非靶向胶                                  nanoplatform  with  ROS  regeneration  property  for  en‐
          束Ms@PTX/ICA相比,MTX修饰的胶束MTX-Ms@PTX/                        hanced  hepatocellular  carcinoma  therapy[J].  ACS  Appl
          ICA在RENCA细胞中的摄取量显著增加,表明MTX修                              Mater Interfaces,2024,16(6):7576-7592.
          饰提高了胶束对癌细胞的靶向效果。此外,细胞对                              [ 8 ]  LI P X,YU Y X,SONG H,et al. Potential applications of
          MTX-oxi-Ms@Cou+H2O2 的 摄 取 效 率 高 于 MTX-oxi-               ROS-responsive silk fibroin materials in smart drug deli-
          Ms@Cou,再次验证了ROS响应特性在增强胶束靶向性                              very  systems[J].  ACS  Appl  Polym  Mater,2024,6(6):
          和药物释放中的重要性。这一系列结果表明,MTX-oxi-                             3413-3421.
          Ms@PTX/ICA通过整合靶向性、氧化敏感性和纳米载体                        [ 9 ]  LAN  J  S,QIN  Y  H,LIU  L,et  al.  A  carrier-free  folate
          的优势,有望提高肿瘤治疗的精准性和有效性。                                    receptor-targeted  ursolic  acid/methotrexate  nanodelivery
              细胞迁移和划痕实验结果显示,在高 ROS 水平下,                            system  for  synergetic  anticancer  therapy[J].  Int  J  Nano‐
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          MTX-oxi-Ms@PTX/ICA 抑制 RENCA 细胞侵袭、迁移的
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          能力变强。这一结果不仅证明了 MTX-oxi-Ms@PTX/                           modified  methotrexate-conjugated  gold  nanoparticles  as
          ICA能够在高ROS环境下实现药物的响应释放,更重要                               nano-sized  trojans  for  drug  delivery  to  folate  receptor-
          的是揭示了其在抑制肿瘤转移方面的潜力。本研究制                                  positive cancer cells[J]. Nanotechnology,2020,31(35):
          备的胶束能够在抑制肿瘤细胞增殖的同时,有效抑制其                                 355101.
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              综上所述,MTX-oxi-Ms@PTX/ICA 在提高药物稳                       some  targeting  hepatocellular  carcinoma  cells  and  stem
          定性、增强对RENCA细胞靶向性和抑制肿瘤侵袭、迁移                               cells enhances the chemotherapy effect of doxorubicin in
          等方面表现出优异的性能,这为肿瘤靶向治疗提供了新                                 hepatocellular  carcinoma[J].  J  Drug  Deliv  Sci  Technol,
          的研究思路。本课题组后续将深入研究该胶束在动物                                  2023,81:104188.
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          · 292 ·    China Pharmacy  2025 Vol. 36  No. 3                               中国药房  2025年第36卷第3期
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