ncRNA basic information
ncRNA ID:
MI0000283
ncRNA Database:
miRBase
ncRNA Name:
miR-203
ncRNA Type:
miRNA
ncRNA Expression:
up-regulated
ncRNA Method:
qRT-PCR
ncRNA Target Gene:
DKK1
ncRNA Pathway:
NA
Evidence (ncRNA-drug):
validated
drug basic information
Drug ID:
DB00515 (APRD00359)
Drug Name:
Cisplatin
Drug Method:
The present study was designed to focus on miR-203 and Dickkopf-1 (DKK1), investigating the potential mechanisms involved in cisplatin resistance in tissues of lung adenocarcinoma and A549/H460 cell lines. In DDP-sensitive NSCLC samples, miR-203 was expressed at a higher level when compared with this level in DDP-insensitive samples, while DKK1 mRNA was expressed at a relatively low level as indicated by qRT-PCR. Dual luciferase reporter assay revealed that DKK1 is a target gene of miR-203 in A549 and H460 cells. Upregulation of miR-203 reduced the IC50 value of cisplatin in the A549 and H460 cells by inhibiting cell growth and promoting cell apoptosis. Similar effects of tumor inhibition and cisplatin sensitization were verified in vivo. Further research showed that both overexpression of miR-203 and knockdown of DKK1 increased the sensitization to DDP with a lower IC50 value. Upon DKK1 knockdown, overexpression of miR-203 had no added effects on the sensitivity of the cells. In addition, miR-203 was unable to sensitize cells with DKK1 that lacked the 3 untranslated region (3UTR). We conclude that miR-203 targets the 3UTR of DKK1, and increases cisplatin sensitivity in A549/H460 cell lines.
Drug Response:
sensitive
Cancer basic information
Cancer:
lung non-small cell carcinoma
Tissue/Cell:
cell line (A549, H460,NHBE )
Other information
Title:
Overexpression of miR-203 increases the sensitivity of NSCLC A549/H460 cell lines to cisplatin by targeting Dickkopf-1.
Journal:
Oncol Rep
Published:
2017
PubMed ID:
28350100