Song Liming, Wu Yahui, Zhao Senfeng, Liu Yin, Liu Zhipu, Zhai Yunpeng, Cao Jiahui, Xia Yaning, Liang Ruopeng, Wang Weijie, Zhu Rongtao, Sun Binghua, Shi Yupeng, Sun Yuling
Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
Institute of Hepatobiliary and Pancreatic Diseases, Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
Int J Nanomedicine. 2025 Jul 1;20:8481-8496. doi: 10.2147/IJN.S518120. eCollection 2025.
PURPOSE: The current treatment of hepatocellular carcinoma (HCC) is confronted with anoxic drug resistance and significant side effects. To address these issues, a Reactive Oxygen Species (ROS)-responsive and targeted nano drug delivery system named REG/YC-1@PTP-RGD NPs (RYP-RGD NPs) was designed for the co-delivery of Regorafenib (REG) and the hypoxia inhibitor 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole (YC-1). METHODS: RYP-RGD NPs were fabricated through the self-assembly method. A series of techniques, such as transmission electron microscopy (TEM), UV-visible spectroscopy, and others, were employed to characterize their properties. In Vitro investigations encompassed drug release assays, cytotoxicity evaluations using Cell Counting Kit-8 (CCK-8) and other methods, cell uptake experiments, and Western blot analysis. In vivo, the biodistribution of RYP-RGD NPs was tracked by IVIS imaging, and their antitumor efficacy and biosafety were assessed in a HepG2 tumor-bearing mouse model with histological staining and biochemical analysis. RESULTS: RYP-RGD NPs exhibited a spherical morphology with an appropriate size and excellent dispersion. They demonstrated ROS-triggered drug release behavior. In vitro studies revealed good tumor-targeting ability, enhanced cytotoxicity against HCC cells, and the downregulation of hypoxia-inducible factor-1α (HIF-1α) by YC-1. In vivo experiments showed improved tumor targeting, significant inhibition of tumor growth, and lower toxicity compared to single drugs. CONCLUSION: The successfully developed RYP-RGD NPs offer a novel strategy for HCC treatment. They enhance drug targeting, synergistically boost the therapeutic effect, and maintain biosafety, showing great potential for clinical translation.
目的:目前肝细胞癌(HCC)的治疗面临缺氧耐药性和显著的副作用。为了解决这些问题,设计了一种名为REG/YC-1@PTP-RGD NPs(RYP-RGD NPs)的活性氧(ROS)响应型靶向纳米药物递送系统,用于协同递送瑞戈非尼(REG)和缺氧抑制剂3-(5'-羟甲基-2'-呋喃基)-1-苄基吲唑(YC-1)。 方法:通过自组装方法制备RYP-RGD NPs。采用一系列技术,如透射电子显微镜(TEM)、紫外可见光谱等对其性质进行表征。体外研究包括药物释放试验、使用细胞计数试剂盒-8(CCK-8)等方法的细胞毒性评估、细胞摄取实验和蛋白质免疫印迹分析。在体内,通过IVIS成像追踪RYP-RGD NPs的生物分布,并在荷HepG2肿瘤小鼠模型中通过组织学染色和生化分析评估其抗肿瘤疗效和生物安全性。 结果:RYP-RGD NPs呈球形,尺寸合适,分散性良好。它们表现出ROS触发的药物释放行为。体外研究显示出良好的肿瘤靶向能力、对HCC细胞增强的细胞毒性以及YC-1对缺氧诱导因子-1α(HIF-1α)的下调作用。体内实验表明,与单一药物相比,其肿瘤靶向性提高,肿瘤生长受到显著抑制,毒性更低。 结论:成功开发的RYP-RGD NPs为HCC治疗提供了一种新策略。它们增强了药物靶向性,协同提高了治疗效果,并保持了生物安全性,在临床转化方面显示出巨大潜力。
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