Guo Chen, Dou Rui, Wang Linbang, Zhang Jiayu, Cai Xiaomeng, Tang Jiaruo, Huang Zhengyuan, Liu Xiaoguang, Chen Jun, Chen Hanqing
Department of Gastroenterology and Hepatology, Center for Medical Research on Innovation and Translation, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510320, China.
CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China.
Fundam Res. 2024 Dec 30;5(4):1440-1450. doi: 10.1016/j.fmre.2024.12.014. eCollection 2025 Jul.
Hepatocellular carcinoma (HCC) is the most common primary liver cancer with a poor prognosis. Chemotherapy is one of the first-line clinical therapeutic strategies for HCC. Still, the effectiveness of chemotherapy is hampered by the tumor immunosuppressive microenvironment and drug resistance caused by insufficient delivery. Herein, we developed a metal-drug self-delivery nanomedicine (FDAH) to improve the chemo/chemodynamic therapeutic efficacy of HCC. The core of FDAH is an iron-based nanoparticle chelated with two clinical drugs, Doxorubicin (DOX) and Plerixafor (AMD3100). Additionally, the nanomedicine is externally modified with a hyaluronic acid (HA) shell, which can prolong the circulation time of the nanoparticles in the bloodstream after intravenous administration. After entering the bloodstream, the nanomedicine reaches the tumor tissue through the EPR effect and is phagocytosed by the tumor cells via HA/CD44-specific interaction. Iron ion-mediated chemodynamic therapy is mediated by the Fenton reaction to generate ROS, causing an imbalance of redox homeostasis within the tumor cells and enhancing the sensitivity of tumor cells to DOX. In addition, AMD3100 intervenes in the CXCL12/CXCR4 axis to influence the infiltration level of immune cells and promote DOX chemotherapy in tumor cells. This work suggests that alleviating immunosuppression via a metal-drug self-delivery system of the CXCR4 inhibitor can effectively improve the DOX chemotherapy and iron ions-mediated chemodynamic therapy.
肝细胞癌(HCC)是最常见的原发性肝癌,预后较差。化疗是HCC的一线临床治疗策略之一。然而,化疗的有效性受到肿瘤免疫抑制微环境和药物递送不足导致的耐药性的阻碍。在此,我们开发了一种金属药物自递送纳米药物(FDAH)以提高HCC的化学/化学动力学治疗效果。FDAH的核心是一种与两种临床药物阿霉素(DOX)和普乐沙福(AMD3100)螯合的铁基纳米颗粒。此外,该纳米药物用透明质酸(HA)外壳进行外部修饰,这可以延长纳米颗粒在静脉注射后在血液中的循环时间。纳米药物进入血液后,通过增强的渗透滞留(EPR)效应到达肿瘤组织,并通过HA/CD44特异性相互作用被肿瘤细胞吞噬。铁离子介导的化学动力学疗法由芬顿反应介导以产生活性氧(ROS),导致肿瘤细胞内氧化还原稳态失衡并增强肿瘤细胞对DOX的敏感性。此外,AMD3100干预CXCL12/CXCR4轴以影响免疫细胞的浸润水平并促进肿瘤细胞中的DOX化疗。这项工作表明,通过CXCR4抑制剂的金属药物自递送系统减轻免疫抑制可以有效改善DOX化疗和铁离子介导的化学动力学疗法。
ACS Appl Mater Interfaces. 2025-1-22
Nat Rev Cancer. 2024-1
Colloids Surf B Biointerfaces. 2024-2
Nat Rev Clin Oncol. 2023-12
Ultrason Sonochem. 2023-10
Innovation (Camb). 2023-5-29
J Biomed Sci. 2022-10-17