口腔生物医学 ›› 2022, Vol. 13 ›› Issue (4): 224-228.

• 论著 • 上一篇    下一篇

基于铜基金属有机框架的化学动力学疗法联合阿霉素抗口腔鳞癌作用及其机制研究

漆双燕1,黄蕾1,刘姝辰1,李哲1,王欢2*,李道伟1*,孙宏晨1   

  1. 1. 吉林省口腔科学与技术纳米工程重点实验室
    2. 吉林大学口腔医院
  • 收稿日期:2022-07-25 修回日期:2022-08-05 出版日期:2022-12-25 发布日期:2022-12-24
  • 通讯作者: 孙宏晨 E-mail:hcsun@jlu.edu.cn

Doxorubicin-loaded Cu-doped metal-organic framework nanoparticles for driving synergetic chemodynamic anticancer therapy

  • Received:2022-07-25 Revised:2022-08-05 Online:2022-12-25 Published:2022-12-24

摘要: 目的:探讨基于铜基金属有机框架(Cu-MOF)的化学动力学疗法联合阿霉素(DOX)协同抗口腔鳞癌作用及其机制。方法:通过简单的搅拌合成法制备了纳米级的Cu-MOF,并将其作为纳米载体负载DOX(Cu-MOF@DOX);通过透射电子显微镜对Cu-MOF的形貌进行表征,利用CCK-8法检测Cu-MOF@DOX对口腔鳞癌细胞的杀伤效果,采用激光共聚焦显微镜观察口腔鳞癌细胞摄取纳米颗粒及细胞内活性氧(ROS)的生成情况,利用谷胱甘肽(GSH)试剂盒检测癌细胞中GSH消耗情况,利用Western blot检测凋亡蛋白BAX和Bcl-2的表达。结果:Cu-MOF形态较规则,分散较均匀;Cu-MOF@DOX具有显著的抑瘤作用,呈剂量依赖关系(P<0.05);与DOX相比,Cu-MOF、Cu-MOF@DOX组均消耗GSH(P<0.001)。与DOX组相比,Cu-MOF@DOX中的DOX被细胞摄取的更多,并在细胞内能够产生ROS,协同引起细胞凋亡。结论:Cu-MOF@DOX能够通过化学动力学疗法和化疗协同作用促进口腔鳞癌细胞凋亡,Cu-MOF@DOX在口腔鳞癌治疗方面具有较好的应用前景。

Abstract:

Objective: The exploration of the synergistic anti-tumor effects and mechanisms of doxorubicin(DOX)-loaded copper-based metal-organic framework (Cu-MOF@DOX) nanoplatform for cancer chemodynamic therapy. Methods: The nanoscale Cu-MOF was prepared by a facile stirring method, which acted as the nanocarrier for loading DOX. Transmission electron microscope (TEM) was used to characterize these Cu-MOF. CCK-8 assays were used to investigate the cytotoxicity of Cu-MOF@DOX againstoral cancer cells. Confocal laser scanning microscopy (CLSM) was used to study the cellular uptake of Cu-MOF and the generation of intracellular reactive oxygen species (ROS).The depletion of glutathione (GSH) in cancer cells by Cu-MOF@DOX was investigated by a GSH assay kit. Western blotting analysis was used to investigate the expression of BAX and Bcl-2of Cu-MOF@DOX-treated cancer cells. Results: TEM image showed the uniform size distribution and good dispersibility of these Cu-MOF. Cu-MOF@DOX has a significant anti-tumor effect in a dose-dependent manner (P<0.05).Compared with DOX alone, both Cu-MOF and Cu-MOF@DOX could deplete GSH (P<0.001). The DOX in Cu-MOF@DOX could be more effective uptaken by cancer cells and produced large amounts of ROS. Conclusions: Cu-MOF@DOX can effectively induce apoptosis of oral cancer cells through the synergistic effects of chemodynamic therapy and chemotherapy, which held good potential in oral cancer therapy.