Engineering macrophage membrane-camouflaged nanoplatforms with enhanced macrophage function for mediating sonodynamic therapy of ovarian cancer

被引:0
作者
Wang, Xiaofei [1 ]
Wang, Hongling [2 ]
Li, Yansheng [2 ]
Sun, Zhihong [2 ]
Liu, Jie [2 ]
Sun, Chengming [2 ]
Cao, Xiaoli [1 ]
机构
[1] Shandong Univ, Yantai Yuhuangding Hosp, Yantai 264000, Peoples R China
[2] Qingdao Univ, Affiliated Yantai Yuhuangding Hosp, Yantai 264000, Peoples R China
关键词
TUMOR-ASSOCIATED MACROPHAGES; IMMUNOGENIC CELL-DEATH; IMMUNITY;
D O I
10.1039/d4nr01307g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cancer immunotherapy has demonstrated remarkable efficacy in the treatment of cancer, and it has been successfully applied in the treatment of various solid tumors. However, the response rates to immunotherapy in patients with ovarian cancer remain modest because of the immunosuppressive tumor microenvironment (TME). Tumor-associated macrophages (TAMs) represent the predominant myeloid cell population within the TME, which adopt the protumorigenic M2 phenotype and are blinded by the "don't eat me" signals from tumor cells. These characteristics of TAMs result in insufficient phagocytic activation. In this study, we constructed a SIM@TR-NP-mediated combination therapy of sonodynamic and immunotherapy. SIM@TR-NPs were modified by engineered macrophage membranes with overexpressed sialic acid-binding Ig-like lectin 10 (Siglec-10), and were internally loaded with sonosensitizer 4,4 ',4 '',4 '''-(porphine-5,10,15,20-tetrayl)tetrakis(benzoic acid) and immune adjuvant resiquimod. SIM@TR-NPs can block "don't eat me" signals to enhance macrophage phagocytosis and trigger the polarization of TAMs toward the M1 phenotype, thereby improving the immunosuppressive TME. Simultaneously, upon ultrasound irradiation, SIM@TR-NP-mediated sonodynamic therapy (SDT) triggered immunogenic cell death in tumor cells, in combination with TAM-based immunotherapy, transforming the "immune cold tumor" into an "immune hot tumor". SIM@TR-NP-mediated sonodynamic immunotherapy exhibited potent antitumor efficacy in ovarian cancer and exhibited substantial potential for improving the immunosuppressive TME. This study presents an emerging therapeutic regimen for ovarian cancer that synergizes TAM-based antitumor immunotherapy and SDT. To overcome the immunosuppressive tumor microenvironment of ovarian cancer, we constructed a nanoplatform that combines sonodynamic therapy with immunotherapy.
引用
收藏
页码:19048 / 19061
页数:14
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