Tumor progress intercept by intervening in Caveolin-1 related intercellular communication via ROS-sensitive c-Myc targeting therapy.

Tumor progress intercept by intervening in Caveolin-1 related intercellular communication via ROS-sensitive c-Myc targeting therapy.
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通过 ROS 敏感的 c-Myc 靶向治疗干预 Caveolin-1 相关的细胞间通讯来拦截肿瘤进展。

DOI:
10.1016/j.biomaterials.2021.120958
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发表时间:
2021-06
期刊:
影响因子:
14
通讯作者:
Fuqiang Hu
Fuqiang Hu
中科院分区:
工程技术1区
文献类型:
--
作者:
Xueqing Zhou;Xuan Liu;Xiqin Yang;Li Wang;Xuwei Shang;Zhongjun Ma;Yiling Hong;Keke Lian;Guoxi Qiu;Hong Yuan;Fuqiang Hu

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肿瘤微环境中的肿瘤相关巨噬细胞(Tumor-associated macrophages,TAMs)通过分泌多种细胞因子或直接与肿瘤细胞通讯,在肿瘤的发生发展中发挥重要作用,使得TAMs靶向治疗策略极具吸引力。已有研究表明,癌基因Mycis与肿瘤细胞的致瘤过程和巨噬细胞的交替激活有关。因此,我们构建了含有ROS响应性过草酸酯键(CSOPOSA)的糖脂纳米载体,用于ROS触发的药物释放,并用Ex 26对其进行进一步修饰(Ex 26-CSOPOSA),一种选择性1-磷酸鞘氨醇受体1(S1 PR 1)拮抗剂,以实现Myc抑制剂JQ 1通过S1 PR 1的双靶向递送,所述S1 PR 1在肿瘤细胞和TAM上都过表达,从而诱导肿瘤细胞凋亡,阻断巨噬细胞的M2极化。更引人注目的是,我们的研究发现JQ 1可以通过阻断Caveolin-1相关的细胞间exosome交换,通过lncRNA H19和miR-107,有效抑制M2巨噬细胞来源的exosomes诱导的肿瘤细胞迁移。体内实验结果表明,该双靶向给药策略能有效抑制肿瘤生长和转移,且全身毒性小,为肿瘤的有效治疗提供了一种潜在的方法。
Tumor-associated macrophages (TAMs) in the tumor microenvironment (TME) play an important role in the development of tumors by secreting a variety of cytokines or directly communicating with tumor cells, making TAMs-targeted therapeutic strategies very attractive. It has been reported that oncogenec-Mycis related to every aspect of the oncogenic process of tumor cells and the alternative activation of macrophages. Hence, we constructed a glycolipid nanocarrier containing ROS-responsive peroxalate linkages (CSOPOSA) for ROS-triggered release of drugs and further modified it with Ex 26 (Ex 26-CSOPOSA), a selective sphingosine 1-phosphate receptor 1 (S1PR1) antagonist, to achieve the dual-targeted delivery of thec-Mycinhibitor JQ1viaS1PR1, which is overexpressed on both tumor cells and TAMs, thereby inducing apoptosis of tumor cells, and blocking M2 polarization of macrophages. More strikingly, our studies found that JQ1 could effectively inhibit the migration of tumor cells induced by M2 macrophages-derived exosomesviablocking Caveolin-1 related intercellular exosome exchange through lncRNA H19 and miR-107. Thein vivoresults revealed that this dual-targeted delivery strategy effectively inhibited tumor growth and metastasis with less systemic toxicity, providing a potential method for effective tumor treatment.
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