Home CUSTOMERS Neoplasma 2018 Neoplasma Vol.65, No.4, p.494-504, 2018

Journal info

6 times a year.
Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

Published in English

Editorial Info
Abstracted and Indexed
Submission Guidelines

Select Journal

Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Neoplasma Vol.65, No.4, p.494-504, 2018

Title: miR-133b acts as a tumor suppressor and negatively regulates EMP2 in glioma
Author: Q. ZHANG, X. FAN, B. XU, Q. PANG, L. TENG

Abstract: In recent years, the incidence of neuroglioma (glioma) has trended towards a younger age-group. Gene therapy has been widely implemented and a growing number of microRNAs associated with glioma have been identified., Herein, we detected the expression of micro RNA – miR-133b – in glioma by qPCR and also its effect on cell viability, survival and apoptosis of in vitro U87 and A172 cells. The binding effect of miR-133b on epithelial membrane protein-2 (EMP2) was verified and we then investigated the effect of EMP2 on in vitro glioma cells and tested the expression of apoptosis related factors after administration of altered miR-133b and EMP2 expressions. We found that miR-133b was down-regulated in glioma compared to adjacent non-tumorous tissue and also that its over-expression inhibits cell viability and survival and enhances apoptosis in the U87 and A-172 cells. Moreover, miR-133b effectively binds to EMP2, down-regulates its expression and negates its normal function. EMP2 normally promotes cell apoptosis and reduces cell viability and survival while miR-133b over-expression regulates the expression of apoptotic-associated protein and activates the apoptotic pathway, thus counteracting EMP2 regulation of opposite expression effects. Further, miR-133b can be considered a tumor suppressor because of its low expression and effects on cell apoptosis via down-regulating EMP2 expression and activating the apoptotic cell pathway in glioma. EMP2 is a risk factor for glioma, and miR-133b should prove a potential target for glioma clinical prevention and treatment.

Keywords: glioma, microRNA-133b, epithelial membrane protein-2, apoptosis, tumor suppressor
Published online: 30-Jul-2018
Year: 2018, Volume: 65, Issue: 4 Page From: 494, Page To: 504

download file

© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.