4.6 Article

MIR-4507 Targets TP53 to Facilitate the Malignant Progression of Non-small-cell Lung Cancer

Journal

JOURNAL OF CANCER
Volume 12, Issue 22, Pages 6600-6609

Publisher

IVYSPRING INT PUBL
DOI: 10.7150/jca.60724

Keywords

miR-4507; migration; non-small-cell lung cancer; proliferation; TP53

Categories

Funding

  1. Youth Program of National Natural Science Foundation of China (NSFC) [81702672]

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miR-4507 is upregulated in non-small-cell lung cancer and activates the PI3K/AKT signal pathway by targeting TPS3, promoting proliferation and migration of lung cancer cells.
Lung cancer is a serious threat to human health due to its high morbidity and mortality. microRNAs (miRNAs) are involved in the tumorigenesis and progression of lung cancer. In this study, we elucidated the role of miRNA-4507 (miR-4507) in the pathogenesis of non-small-cell lung cancer (NSCLC). miR-4507 is found to be upregulated in NSCLC cells (A549, H460). MTT, 5-ethynyl-2'-deoxyuridine (EdU), wound healing, and transwell assays were performed to evaluate NSCLC cell proliferation and migration. The results demonstrated that miR-4507 inhibition significantly decrease the proliferation and migration of NSCLC cells. Subsequently, a luciferase activity assay was conducted to verify the regulation of the predicted gene target of miR-4507, namely, TPS3. Mechanism experiments show that miR-4507 activates the PI3K/AKT signal. Further, we co-transfected miR-4507 mimics and TPS3 plasmids and found that TPS3 overexpression could recover the effects of miR-4507 mimics on proliferation, migration, and the PI3K/AKT signal activation. These results suggested that miR-4507 targets TPS3 to facilitate the proliferation and migration of lung cancer cells through PI3K/AKT signal and that miR-4507 could serve as a potential target for NSCLC treatment.

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