Cyclodextrin-based host-guest complexes loaded with regorafenib for colorectal cancer treatment.

Cyclodextrin-based host-guest complexes loaded with regorafenib for colorectal cancer treatment.
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基于环糊精的负载瑞戈非尼的主客体复合物用于结直肠癌治疗

DOI:
10.1038/s41467-021-21071-0
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发表时间:
2021-02-03
影响因子:
16.6
通讯作者:
Tang G
Tang G
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Bai H;Wang J;Phan CU;Chen Q;Hu X;Shao G;Zhou J;Lai L;Tang G

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结直肠癌(CRC)的恶性程度与炎症和肿瘤相关巨噬细胞(TAM)有关,但有效的治疗方法有限。为了将治疗靶向与肿瘤微环境(TME)重编程相结合,我们开发了生物相容的非共价通道型纳米颗粒(CNP),其通过甘露糖修饰的γ-环糊精(M-γ-CD)与瑞格非尼(RG)的主客体络合和自组装来制备,RG@M-γ-CD CNP。除了其载体作用外,M-γ-CD还作为靶向装置并参与TME调节。RG@M-γ-CD CNP通过靶向巨噬细胞减轻炎症并抑制TAM活化。它们还通过增强激酶抑制来改善RG的抗肿瘤作用。体内应用表明,通道型制剂优化了RG的药代动力学和生物分布。在结肠炎相关癌症和CT 26小鼠模型中,RG@M-γ-CD被证明是一种靶向、安全和有效的抗肿瘤纳米药物,可抑制肿瘤细胞增殖、损伤新生血管和重塑TME。这些发现表明RG@M-γ-CD CNP是CRC治疗的潜在策略。
The malignancy of colorectal cancer (CRC) is connected with inflammation and tumor-associated macrophages (TAMs), but effective therapeutics for CRC are limited. To integrate therapeutic targeting with tumor microenvironment (TME) reprogramming, here we develop biocompatible, non-covalent channel-type nanoparticles (CNPs) that are fabricated through host-guest complexation and self-assemble of mannose-modified γ-cyclodextrin (M-γ-CD) with Regorafenib (RG), RG@M-γ-CD CNPs. In addition to its carrier role, M-γ-CD serves as a targeting device and participates in TME regulation. RG@M-γ-CD CNPs attenuate inflammation and inhibit TAM activation by targeting macrophages. They also improve RG’s anti-tumor effect by potentiating kinase suppression. In vivo application shows that the channel-type formulation optimizes the pharmacokinetics and bio-distribution of RG. In colitis-associated cancer and CT26 mouse models, RG@M-γ-CD is proven to be a targeted, safe and effective anti-tumor nanomedicine that suppresses tumor cell proliferation, lesions neovascularization, and remodels TME. These findings indicate RG@M-γ-CD CNPs as a potential strategy for CRC treatment.
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