1. miR-367 promotes the proliferation and invasion of non-small cell lung cancer via targeting FBXW7
- Author
-
Jun Wang, Fei Zhao, Weibing Wu, Xin-Feng Xu, Xianglong Pan, Liang Chen, Chenjun Huang, Wei Wang, Quan Zhu, Wei Wen, and Jing Xu
- Subjects
0301 basic medicine ,Oncology ,Male ,Cancer Research ,medicine.medical_specialty ,F-Box-WD Repeat-Containing Protein 7 ,Lung Neoplasms ,Ubiquitin-Protein Ligases ,Apoptosis ,Cell Cycle Proteins ,Biology ,medicine.disease_cause ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Carcinoma, Non-Small-Cell Lung ,Cell Line, Tumor ,microRNA ,medicine ,Biomarkers, Tumor ,Humans ,Lung cancer ,3' Untranslated Regions ,Aged ,Cell Proliferation ,Oncogene ,F-Box Proteins ,Cancer ,General Medicine ,Cell cycle ,Middle Aged ,medicine.disease ,Molecular medicine ,respiratory tract diseases ,Gene Expression Regulation, Neoplastic ,MicroRNAs ,030104 developmental biology ,030220 oncology & carcinogenesis ,Cancer research ,Female ,Carcinogenesis - Abstract
The involvement of miR-367 in lung cancer development remains unclear. In the present study, we analyzed the expression of miR-367 in tumor and adjacent tissue samples from 113 patients with non-small cell lung cancer (NSCLC) utilizing real-time PCR. miR-367 expression was significantly upregulated in the cancer tissues compared with non-cancer controls. Based on the median value of the miR-367 expression level, we divided the NSCLC patients into miR-367 high-expression and miR-367 low-expression groups. Overexpression of miR-367 was correlated with a poorer prognosis of NSCLC patients Chi-square (χ2) test showed a significant statistical correlation between tumor size, tumor stage, metastasis and miR-367 expression. Additionally, miR-367 expression was found to be negatively correlated with FBXW7 expression. Based on the above correlations, we performed a series of functional experiments to further confirm the effect of miR-367 on NSCLC. Our results indicated that miR-367 may be involved in the development and progression of NSCLC by promoting proliferation and invasion and impeding apoptosis in NSCLC cells. Furthermore, FBXW7 was identified as a potential target of miR-367, and FBXW7 silencing partially compromised the invasive, proliferative and migratory capacities in the cells with low miR-367 expression. Thus, the miR-367/FBXW7 axis may be involved in the development and progression of NSCLC and may be valuable as a therapeutic target for the treatment of human NSCLC, especially cancers with high invasive potential.
- Published
- 2016