KCNF1 promotes lung cancer by modulating ITGB4 expression.
KCNF1 promotes lung cancer by modulating ITGB4 expression.
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DOI:
10.1038/s41417-022-00560-4
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发表时间:
2023-03
影响因子:
6.4
通讯作者:
Winn, Robert A.
中科院分区:
文献类型:
--
作者:
Chen, Ching-Yi;Wu, Pei-Ying;Van Scoyk, Michelle;Simko, Stephanie A.;Chou, Chu-Fang;Winn, Robert A.
Lung cancer continues to be the leading cause of cancer death in the United States. Despite recent advances, the five-year survival rate for lung cancer compared to other cancers still remains fairly low. The discovery of molecular targets for lung cancer is key to the development of new approaches and therapies. Electrically silent voltage-gated potassium channel (KvS) subfamilies, which are unable to form functional homotetramers, are implicated in cell-cycle progression, cell proliferation and tumorigenesis. Here, we analyzed the expression of KvS subfamilies in human lung tumors and identified that potassium voltage-gated channel subfamily F member 1 (KCNF1) was up-regulated in non-small cell lung cancer (NSCLC). Silencing of KCNF1 in NSCLC cell lines reduced cell proliferation and tumor progression in mouse xenografts, re-established the integrity of the basement membrane, and enhanced cisplatin sensitivity. KCNF1 was predominately localized in the nucleoplasm and likely mediated its functions in an ion-independent manner. We identified integrin β4 subunit (ITGB4) as a downstream target for KCNF1. Our findings suggest that KCNF1 promotes lung cancer by enhancing ITGB4 signaling and implicate KCNF1 as a novel therapeutic target for lung cancer.
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