ncRNA basic information
ncRNA ID:
MIMAT0002809
ncRNA Database:
miRBase
ncRNA Name:
miR-146b-5p
ncRNA Type:
miRNA
ncRNA Expression:
up-regulated
ncRNA Method:
RT-PCR
ncRNA Target Gene:
TRAF6
ncRNA Pathway:
AKT and NF-kappaB pathway
Evidence (ncRNA-drug):
validated
drug basic information
Drug ID:
DB00853 (APRD00557)
Drug Name:
Temozolomide
Drug Method:
In the present study, we successfully generated U87 and U251-TR cells, and found that miR-146b-5p was downregulated in TR cells. Overexpression of miR-146b-5p restored sensitivity of U87/U251-TR cells to TMZ by targeting tumor necrosis factor receptor-associated factor 6 (TRAF6). The levels of TRAF6 were inversely related to miR-146b-5p levels, and overexpression of TRAF6 in miR-146b-5p OE cells enhanced the resistance against TMZ. Moreover, temozolomide-resistant GBM cells had a higher level of phosphorylated protein kinase B (AKT) and P65. Overexpression of miR-146b-5p or TRAF6 knockdown significantly decreased the level of p-AKT and p-p65. Collectively, our data demonstrated that miR-146b-5p, as a tumor suppressor, mediated temozolomide resistance in GBM cells through negatively regulating TRAF6 expression, indicating that miR-146b-5p and its targeted genes would be potential therapeutic targets for glioma therapy.
Drug Response:
sensitive
Cancer basic information
Cancer:
glioblastoma
Tissue/Cell:
cell line (U87-MG,U251-MG)
Other information
Title:
miR-146b-5p suppresses glioblastoma cell resistance to temozolomide through targeting TRAF6.
Journal:
Oncol Rep
Published:
2017
PubMed ID:
29048680