OncoTargets and Therapy (Aug 2019)
Overexpression of miR-671-5p indicates a poor prognosis in colon cancer and accelerates proliferation, migration, and invasion of colon cancer cells
Abstract
Wei Jin,1,* Jinsheng Shi,2,* Meiqin Liu11Department of Gastroenterology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, People’s Republic of China; 2Department of Pathology, Yidu Central Hospital of Weifang, Weifang, Shandong 262500, People’s Republic of China *These authors contributed equally to this workCorrespondence: Wei JinDepartment of Gastroenterology, Yidu Central Hospital of Weifang, No.4138, South Linglongshan Road, Shandong 262500, People’s Republic of ChinaTel +86 0 536 327 5615Fax +86 0 536 327 9421Email [email protected]: Colon cancer is one of the common malignancies worldwide, and many genes, including microRNAs (miRNAs), have been demonstrated that associated with progression of various diseases, including cancers. The aim of this study is to investigate the potential role of miR-671-5p in colon cancer.Patients and methods: Reverse transcription-quantitative polymerase chain reaction (qRT-PCR) was performed to detect the expression levels of miR-671-5p in 115 paired colon cancer tissues and adjacent normal tissues, as well as in colon cancer cells. Kaplan-Meier curve and Cox regression analyses were used to estimate the prognostic significance of miR-671-5p in colon cancer. CCK-8 assay, colony-formation assay, Transwell migration and invasion assays were used to evaluate the effects of miR-671-5p on cell proliferation, migration, and invasion in colon cancer.Results: We found that miR-671-5p expression was increased in colon cancer tissues and cell lines. Overexpression of miR-671-5p was found associated with lymph node metastasis, TNM stage, and poor overall survival of patients with colon cancer. By exploiting miR-671-5p mimics and inhibitors, miR-671-5p overexpression significantly increased cell proliferation, migration, and invasion, while downregulation of miR-671-5p inhibited proliferation, migration, and invasion of colon cancer cells.Conclusion: Taken together, miR-671-5p may act as an oncogene in colon cancer and promote proliferation, migration, and invasion of colon cancer cells by targeting TRIM67. And it may be a promising prognostic biomarker and therapeutic application for colon cancer treatment.Keywords: miR-671-5p, colon cancer, prognosis, proliferation, migration, invasion
