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QKI-6 Suppresses Cell Proliferation, Migration, and EMT in Non-Small Cell Lung Cancer.


ABSTRACT: The RNA-binding protein quaking homolog 6 (QKI-6) is a tumor-suppressor gene in several cancers. However, its role in non-small cell lung cancer (NSCLC) is unclear. In this study, we aimed to determine the association between QKI-6 expression and survival and clinicopathological features in patients with NSCLC and identify the related mechanisms. Western blot and immunohistochemistry (IHC) were used to detect QKI-6 expression in NSCLC. The effect of QKI-6 on NSCLC cells was determined by overexpression and knockdown assays, and label-free quantitative proteomics and Western blot were used to identify the underlying mechanisms. Low QKI-6 expression level was positively correlated with poor overall survival in patients with NSCLC. Furthermore, QKI-6 overexpression inhibited NSCLC cell proliferation and migration and induced a block in the G0/G1 phase, and QKI-6 downregulation increased proliferation and migration. QKI-6 inhibited EMT processes via EGFR/SRC/STAT3 signaling by upregulating AGR2. In conclusion, QKI-6 could be used to develop novel strategies for the treatment of NSCLC.

SUBMITTER: Zhang H 

PROVIDER: S-EPMC9117621 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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QKI-6 Suppresses Cell Proliferation, Migration, and EMT in Non-Small Cell Lung Cancer.

Zhang Haihua H   Li Junqiang J   Tian Feng F   Su Xuan X   Wang Xinxin X   Tang Di D   Zhang Lei L   Zhang Tao T   Ni Yunfeng Y  

Frontiers in oncology 20220505


The RNA-binding protein quaking homolog 6 (QKI-6) is a tumor-suppressor gene in several cancers. However, its role in non-small cell lung cancer (NSCLC) is unclear. In this study, we aimed to determine the association between QKI-6 expression and survival and clinicopathological features in patients with NSCLC and identify the related mechanisms. Western blot and immunohistochemistry (IHC) were used to detect QKI-6 expression in NSCLC. The effect of QKI-6 on NSCLC cells was determined by overexp  ...[more]

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