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核输出蛋白1抑制剂的抗肿瘤作用及联合用药策略研究进展

Research progress on the antitumor effects of nuclear export protein 1 inhibitors and combined medication strategies

  • 摘要: 核输出蛋白1(exportin 1,XPO1)在多种恶性肿瘤中异常高表达,可通过介导p53、RB1、FOXO等重要抑癌蛋白的核输出导致其丧失抗肿瘤作用。XPO1抑制剂塞利尼索虽已进入临床应用,但其单药抗肿瘤效果仍有待提升,这与XPO1抑制剂的干预受到多条信号通路的交叉调控密切相关。本文从XPO1在肿瘤细胞中的核心调控功能出发,系统总结了XPO1抑制剂与多种靶点抑制剂的联用研究现状,包括周期蛋白依赖性激酶4/6(CDK4/6)、FMS样酪氨酸激酶3(FLT3)、溴结构域蛋白(BET)、共济失调毛细血管扩张症和Rad3相关蛋白(ATR)、B细胞淋巴瘤-2/小鼠双微体扩增基因2(BCL2/MDM2)抑制剂等,旨在为以XPO1为核心的联合治疗策略提供参考。

     

    Abstract: Exportin 1 (XPO1) is aberrantly overexpressed in various malignant tumors and can lead to the loss of anti-tumor effects of important tumor suppressor proteins such as p53, RB1, and FOXO by mediating their nuclear export. Although XPO1 inhibitor Selinexor has entered clinical application, its single-agent anti-tumor activity remains suboptimal, which is closely related to the compensatory activation of multiple signaling pathways in response to XPO1 inhibition. Focusing on the core regulatory role of XPO1 in tumor cells, this article systematically summarizes the current landscape of combination therapies involving XPO1 inhibitors and various targeted agents, including inhibitors of CDK4/6, FLT3, BET, ATR, and BCL2/MDM2, aiming to provide some reference for the development of XPO1-centered combination therapy strategies.

     

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