The deubiquitinase USP16 functions as an oncogenic factor in K-RAS-driven lung tumorigenesis

The deubiquitinase USP16 functions as an oncogenic factor in K-RAS-driven lung tumorigenesis
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去泛素酶 USP16 在 K-RAS 驱动的肺部肿瘤发生中充当致癌因子

DOI:
10.1038/s41388-021-01964-6
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发表时间:
2021-07
期刊:
影响因子:
8
通讯作者:
Liu Yongzhong
Liu Yongzhong
中科院分区:
医学1区
文献类型:
--
作者:
Xu Guiqin;Yang Zhaojuan;Ding Yizong;Liu Yun;Zhang Li;Wang Boshi;Tang Ming;Jing Tiantian;Jiao Kun;Xu Xiaoli;Chen Zehong;Xiang Lvzhu;Xu Chen;Fu Yujie;Zhao Xiaojing;Jin Weilin;Liu Yongzhong

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K-RAS突变及其替代物的分子改变在肺肿瘤发生和恶性进展中起重要作用。然而,在肺肿瘤发生中,K-RAS信号下游的肿瘤促进和有害事件如何协调仍然是难以捉摸的。在此,我们发现USP 16是一种参与多种生物学过程的去泛素化酶,它是K-RAS驱动的肺癌发生的启动子,USP 16缺失可显著减弱K-rasG 12 D突变诱导的小鼠肺癌发生。RAS激活后USP 16上调可避免活性氧(ROS)诱导的p38激活,否则p38激活将对肿瘤细胞的存活和增殖产生不利影响。此外,USP 16与JAK 1相互作用并使JAK 1去泛素化,从而通过增强JAK 1信号传导促进肺肿瘤生长。因此,我们的研究结果表明,USP 16通过调节p38和JAK 1信号的强度在K-RAS驱动的肺肿瘤发生中起关键作用。
K-RASmutation and molecular alterations of its surrogates function essentially in lung tumorigenesis and malignant progression. However, it remains elusive how tumor-promoting and deleterious events downstream of K-RAS signaling are coordinated in lung tumorigenesis. Here, we show that USP16, a deubiquitinase involved in various biological processes, functions as a promoter for the development of K-RAS-driven lung tumor.Usp16deletion significantly attenuatesK-rasG12D-mutation-induced lung tumorigenesis in mice. USP16 upregulation upon RAS activation averts reactive oxygen species (ROS)-induced p38 activation that would otherwise detrimentally influence the survival and proliferation of tumor cells. In addition, USP16 interacts with and deubiquitinates JAK1, and thereby promoting lung tumor growth by augmenting JAK1 signaling. Therefore, our results reveal that USP16 functions critically in the K-RAS-driven lung tumorigenesis through modulating the strength of p38 and JAK1 signaling.
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