NUSAP1 is Upregulated by Estrogen to Promote Lung Adenocarcinoma Growth and Serves as a Therapeutic Target.

IF 8.2 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY
International Journal of Biological Sciences Pub Date : 2024-10-07 eCollection Date: 2024-01-01 DOI:10.7150/ijbs.100188
Shaoping Zhang, Xiaozhen Zhang, Wenjian Huang, Ganling Jiang, Yuanxin Mo, Liuxia Wei, Pingming Fan, Maojian Chen, Wei Jiang
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引用次数: 0

Abstract

Nucleolar and spindle-associated protein 1 (NUSAP1), a microtubule-associated protein, has been recently identified to exhibit aberrant expression patterns that correlate with malignant tumorigenesis and progression across various cancer types. However, the specific regulatory mechanisms and potential targeting therapies of NUSAP1 in lung adenocarcinoma (LUAD) remain largely elusive. In this study, by conducting bioinformatics analyses as well as in vitro and in vivo experiments, we identified that NUSAP1 was significantly upregulated in LUAD, with a notable correlation with poorer overall survival, higher scores for immunogenicity and immune infiltration, as well as increased sensitivity to conventional chemotherapeutic drugs such as paclitaxel, docetaxel and vinorelbine in LUAD. Functionally, NUSAP1 overexpression significantly promoted LUAD cell proliferation, while its knockdown markedly suppressed this process. Interestingly, our results revealed that NUSAP1 upregulation was mediated by estrogen via ERβ activation. Furthermore, we identified entinostat as a novel inhibitor of NUSAP1. Pharmacological targeting ERβ/NUSAP1 axis with fulvestrant (ERβ antagonist) or entinostat (novel NUSAP1 inhibitor) significantly reduced LUAD growth both in vitro and in vivo, which may represent effective alternative therapeutic strategies for patients with LUAD.

雌激素上调 NUSAP1 促进肺腺癌生长并成为治疗靶点
核极性和纺锤体相关蛋白 1(NUSAP1)是一种微管相关蛋白,最近发现它的异常表达模式与各种癌症类型的恶性肿瘤发生和发展相关。然而,NUSAP1 在肺腺癌(LUAD)中的具体调控机制和潜在靶向疗法在很大程度上仍是未知数。在本研究中,通过生物信息学分析以及体外和体内实验,我们发现 NUSAP1 在 LUAD 中显著上调,与 LUAD 较差的总生存期、较高的免疫原性和免疫浸润评分以及对传统化疗药物(如紫杉醇、多西他赛和长春瑞滨)敏感性的增加明显相关。在功能上,NUSAP1的过表达明显促进了LUAD细胞的增殖,而其敲除则明显抑制了这一过程。有趣的是,我们的研究结果表明,NUSAP1的上调是由雌激素通过ERβ激活介导的。此外,我们还发现恩替诺司他是一种新型的 NUSAP1 抑制剂。用氟维司群(ERβ拮抗剂)或恩替诺司他(新型NUSAP1抑制剂)药理靶向ERβ/NUSAP1轴,可显著降低LUAD在体外和体内的生长,这可能是LUAD患者的有效替代治疗策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Biological Sciences
International Journal of Biological Sciences 生物-生化与分子生物学
CiteScore
16.90
自引率
1.10%
发文量
413
审稿时长
1 months
期刊介绍: The International Journal of Biological Sciences is a peer-reviewed, open-access scientific journal published by Ivyspring International Publisher. It dedicates itself to publishing original articles, reviews, and short research communications across all domains of biological sciences.
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