ncRNA basic information
ncRNA ID:
MI0000342
ncRNA Database:
miRBase
ncRNA Name:
miR-200b
ncRNA Type:
miRNA
ncRNA Expression:
down-regulated
ncRNA Method:
qRT-PCR
ncRNA Target Gene:
NA
ncRNA Pathway:
NA
Evidence (ncRNA-drug):
validated
drug basic information
Drug ID:
DB01248 (APRD00932)
Drug Name:
Docetaxel
Drug Method:
The aim of this study was to identify microRNA expression profiles involved in the development of docetaxel resistance in NSCLC. Here, microarray chip technology was employed to identify miRNA expression profiles in docetaxel-resistant human NSCLC cell line (SPC-A1/docetaxel). Then, the changes of miRNAs expression (>2-fold compared with control SPC-A1 cell line) were testified by quantitative real-time RT-PCR (qRT-PCR) assay. Furthermore, the potential target genes regulated by selected miRNAs were analysed by various target prediction tools. The expression of a total of 52 miRNAs showed significant difference between SPC-A1/docetaxel cells and control SPC-A1 cells (P < 0.01). Six miRNAs (miR-192, 200b, 194, 424, 98 and 212) exhibited more than 2-fold changes in their expression levels, which were validated by qRT-PCR. The expression of three miRNAs (miR-200b, 194 and 212) was significantly down-regulated in SPC-A1/docetaxel cells, while the expression of other three miRNAs (miR-192, 424 and 98) was significantly up-regulated in SPC-A1/docetaxel cells (P < 0.01). Potential target genes controlled by six selected miRNAs were divided into four groups according to various functions: apoptosis and proliferation (71 genes), cell cycle (68 genes), DNA damage (26 genes) and DNA repair (59 genes). The expression of a few target genes in SPC-A1/docetaxel and SPC-A1 cells were further confirmed by qRT-PCR and Western blot.
Drug Response:
resistant
Cancer basic information
Cancer:
lung adenocarcinoma
Tissue/Cell:
cell line (SPC-A1)
Other information
Title:
Identification of microRNA profiles in docetaxel-resistant human non-small cell lung carcinoma cells (SPC-A1).
Journal:
J Cell Mol Med
Published:
2010
PubMed ID:
19900214