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  • Title: MiR-133a-3p Inhibits Oral Squamous Cell Carcinoma (OSCC) Proliferation and Invasion by Suppressing COL1A1.
    Author: He B, Lin X, Tian F, Yu W, Qiao B.
    Journal: J Cell Biochem; 2018 Jan; 119(1):338-346. PubMed ID: 28569392.
    Abstract:
    The aim of our study was to investigate the effects of miR-133a-3p on human oral squamous cell carcinoma (OSCC) cells by regulating gene COL1A1. OSCC tissues, adjacent tongue epithelial tissues, the immortalized oral epithelial cell line HIOEC, and OSCC cell lines (CAL-27, TCA-8113, SCC-4, SCC-9, and SCC-15) were used in this research. Quantitative real-time PCR (RT-qPCR) was employed to determine the expression of miR-133a-3p and COL1A1. Dual luciferase reporter gene assay and Western blot were applied to verify the binding relationship between miR-133a-3p and COL1A1. Functional assays were also conducted in this study, including CCK-8 assay, colony formation assay, flow cytometry analysis as well as Transwell assay. MiR-133a-3p was found low-expressed both in OSCC tissues and cells lines compared with normal tissues and cell line, respectively, whereas COL1A1 was just the opposite. The over-expression of miR-133a-3p or the down-regulation of COL1A1 suppressed the proliferation, invasion, and mitosis of OSCC cells, whereas simultaneous down-regulation of miR-133a-3p and up-regulation of COL1A1 led to no significant alteration of cell activities. MiR-133a-3p could inhibit the proliferation and migration of OSCC cells through directly targeting COL1A1 and reducing its expression. J. Cell. Biochem. 119: 338-346, 2018. © 2017 Wiley Periodicals, Inc.
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