ncRNA basic information
ncRNA ID:
MI0000071
ncRNA Database:
miRBase
ncRNA Name:
miR-17
ncRNA Type:
miRNA
ncRNA Expression:
down-regulated
ncRNA Method:
RT-qPCR
ncRNA Target Gene:
DEDD
ncRNA Pathway:
NA
Evidence (ncRNA-drug):
validated
drug basic information
Drug ID:
DB00515 (APRD00359)
Drug Name:
Cisplatin
Drug Method:
Microarray analysis revealed that aberrant expressed microRNA-17 (miR-17) and DEDD were identified in GC. DEDD has been found to act as an endogenous suppressor of tumor growth and metastasis through epithelial-mesenchymal transition (EMT) process. However, the role of miRNA-17 (miR-17) has not been clearly evaluated in GC, thereby a series of in vitro experiments were performed in this study. The levels of miR-17 and DEDD in GC tissues from patients diagnosed with GC and in five GC cell lines (SGC-7901, MKN-45, HGC-27, BGC823, and AGS) were detected. It was found that miR-17 up-regulated and DEDD down-regulated in GC, and SGC-7901 and AGS cells were adopted for the in vitro cell experiments, in which the expression of miR-17 or DEDD was regulated by transfection. DEDD was validated to be a target gene of miR-17. Inhibition of miR-17 impaired EMT in GC cells. In addition, transwell assay and scratch test results revealed that inhibition of miR-17 hindered GC cell invasion and migration. Moreover, inhibition of miR-17 reduced resistance to cisplatin- or 5-Fu in GC cells and induced cisplatin- or 5-Fu-treated GC cell apoptosis, which evaluated by using CCK-8 and flow cytometry assays. From the short review above, the key findings emerge that inhibition of miR-17 may have tumor suppressive effects on GC and enhance its chemosensitivity by promoting DEDD, highlighting a novel target for GC therapy.
Drug Response:
sensitive
Cancer basic information
Cancer:
stomach cancer
Tissue/Cell:
cell line (GES-1,AGS, BGC823, HGC27,MKN45, SGC7901)
Other information
Title:
MicroRNA-17 inhibition overcomes chemoresistance and suppresses epithelial-mesenchymal transition through a DEDD-dependent mechanism in gastric cancer.
Journal:
Int J Biochem Cell Biol
Published:
2018
PubMed ID:
29953965