03 March 2016 : Laboratory Research
Mir-338-3p Inhibits Malignant Biological Behaviors of Glioma Cells by Targeting MACC1 Gene
Chao ShangAEG, Yang HongBG, Yan GuoCDF, Yixue XueBEDOI: 10.12659/MSM.897055
Med Sci Monit 2016; 22:710-716
Abstract
BACKGROUND: Human brain glioma is the most common endocranial tumor; its mortality and morbidity are very high. The objective of this study was to determine whether miR-338-3p can regulate malignant biological behaviors of glioma cells by targeted silencing of MACC1.
MATERIAL AND METHODS: The expression of miR-338-3p was detected by quantitative real-time PCR in brain glioma tissues and cell lines. Bioinformatics software was used to predict some potential target genes of miR-338-3p. Luciferase activities assay was used to verify the combination between target genes and miR-338-3p. And MACC1 protein expression was detected by Western blot. The apoptosis and proliferation ability were analyzed by MTT and flow cytometry assay.
RESULTS: Compared with normal brain tissues and cells, miR-338-3p in glioma tissues and cell lines was confirmed to be expressed at low levels, and down-regulation of miR-338-3p tended to be correlated with worse histological grade. Up-regulation of miR-338-3p promoted apoptosis and sharply inhibited cell proliferation ability of U251 and U87 cells. The luciferase activities assay, biotin-avidin pull-down assay, and western blot analysis verified that MACC1 was a specific target gene of miR-338-3p. Subsequent experiments found that up-regulation of MACC1 significantly inhibited the apoptosis and increased the cell proliferation ability of U251 and U87 cells. The regulation effects of miR-338-3p on malignant biological behaviors of glioma cells can be partly reversed by up-regulation of MACC1.
CONCLUSIONS: Down-regulation of miR-338-3p was an independent prognostic biomarker associated with poor prognosis in glioma patients; miR-338-3p acted as a tumor-suppressing gene whose silencing can inhibit malignant biological behaviors of glioma cells. MACC1 was a specific target gene of miR-338-3p, which regulates malignant biological behaviors of glioma cells partly through directly silencing MACC1 expression.
Keywords: Base Sequence, 3' Untranslated Regions - genetics, Binding Sites, Brain Neoplasms - pathology, Genes, Neoplasm, Glioma - pathology, Molecular Sequence Data, RNA, Messenger - metabolism, Transcription Factors - metabolism, Up-Regulation - genetics
Editorial
01 February 2025 : Editorial
Editorial: Current Approaches to Screening for Lung Cancer in Smokers and Non-SmokersDOI: 10.12659/MSM.948255
Med Sci Monit 2025; 31:e948255
In Press
Clinical Research
Pre- and Post-Surgical MRI Analysis of Levator Ani in Pelvic Organ Prolapse Patients: A Single-Center StudyMed Sci Monit In Press; DOI: 10.12659/MSM.945993
Clinical Research
Comparative Impact of Kinesio Taping and Post-Isometric Muscle Relaxation on Pain and Myofascial Mechanics ...Med Sci Monit In Press; DOI: 10.12659/MSM.945376
Clinical Research
Surgical Efficacy in Varicocele Ligation with Ephedrine-Assisted Blood Pressure ControlMed Sci Monit In Press; DOI: 10.12659/MSM.946234
Clinical Research
Retrospective Study to Compare Injury Patterns and Associations in 170 Patients Following Electric Scooter ...Med Sci Monit In Press; DOI: 10.12659/MSM.947155
Most Viewed Current Articles
17 Jan 2024 : Review article 6,968,277
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
16 May 2023 : Clinical Research 701,791
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Mar 2024 : Editorial 25,442
Editorial: First Regulatory Approvals for CRISPR-Cas9 Therapeutic Gene Editing for Sickle Cell Disease and ...DOI :10.12659/MSM.944204
Med Sci Monit 2024; 30:e944204
28 Jan 2024 : Review article 20,020
A Review of IgA Vasculitis (Henoch-Schönlein Purpura) Past, Present, and FutureDOI :10.12659/MSM.943912
Med Sci Monit 2024; 30:e943912