RHOV promotes lung adenocarcinoma cell growth and metastasis through JNK/c-Jun pathway.

RHOV promotes lung adenocarcinoma cell growth and metastasis through JNK/c-Jun pathway.
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RHOV通过JNK/c-Jun通路促进肺腺癌细胞生长和转移

DOI:
10.7150/ijbs.59939
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发表时间:
2021
影响因子:
9.2
通讯作者:
Ye Q
Ye Q
中科院分区:
生物学2区
文献类型:
--
作者:
Zhang D;Jiang Q;Ge X;Shi Y;Ye T;Mi Y;Xie T;Li Q;Ye Q

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肺腺癌(LUAD)是一种常见的肺癌类型,转移频率高,死亡率高。然而,导致LUAD转移的基因在很大程度上仍不清楚。在这里,我们通过生物信息学分析和功能实验相结合的方法确定了ras同源家族成员V(RHOV)在LUAD转移中的重要作用。生物信息学分析显示有5个HUB LUAD转移驱动基因(RHOV、ZIC5、CYP4B1、GPR18和TCP10L2),其中RHOV是与LUAD转移相关最显著的基因。在LUAD患者中,RHOV高表达预示着总生存期缩短。RHOV过表达促进LUAD细胞的增殖、迁移和侵袭,而RHOV基因敲除则抑制这些生物学行为。此外,RHOV基因的敲除可抑制LUAD裸鼠移植瘤的生长和转移。在机制上,RHOV激活Jun氨基末端激酶(JNK)/c-Jun信号通路,这是肺癌发生和发展的重要途径,并调节参与癌细胞迁移、侵袭和转移的上皮向间充质转化的标志物的表达。JNK抑制剂吡唑杂环酮可抑制RHOV诱导的恶性生物学行为。我们的发现表明RHOV在LUAD转移中起关键作用,并可能为LUAD的预后预测和靶点治疗提供生物标记物。
Lung adenocarcinoma (LUAD) is a common type of lung cancer with high frequent metastasis and a high death rate. However, genes responsible for LUAD metastasis are still largely unknown. Here, we identify an important role of ras homolog family member V (RHOV) in LUAD metastasis using a combination of bioinformatic analysis and functional experiments. Bioinformatic analysis shows five hub LUAD metastasis driver genes (RHOV, ZIC5, CYP4B1, GPR18 and TCP10L2), among which RHOV is the most significant gene associated with LUAD metastasis. High RHOV expression predicted shorter overall survival in LUAD patients. RHOV overexpression promotes proliferation, migration, and invasion of LUAD cells, whereas RHOV knockdown inhibits these biological behaviors. Moreover, knockdown of RHOV suppresses LUAD tumor growth and metastasis in nude mice. Mechanistically, RHOV activates Jun N-terminal Kinase (JNK)/c-Jun signalling pathway, an important pathway in lung cancer development and progression, and regulates the expression of markers of epithelial-to-mesenchymal transition, a process involved in cancer cell migration, invasion and metastasis. RHOV-induced malignant biological behaviors are inhibited by pyrazolanthrone, a JNK inhibitor. Our findings indicate a critical role of RHOV in LUAD metastasis and may provide a biomarker for prognostic prediction and a target for LUAD therapy.
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