ncRNA basic information
ncRNA ID:
MI0000077
ncRNA Database:
miRBase
ncRNA Name:
miR-21
ncRNA Type:
miRNA
ncRNA Expression:
up-regulated
ncRNA Method:
RT-PCR
ncRNA Target Gene:
PTEN
ncRNA Pathway:
NA
Evidence (ncRNA-drug):
validated
drug basic information
Drug ID:
DB00997 (APRD00185, DB05331, DB05847)
Drug Name:
Doxorubicin
Drug Method:
The half maximal inhibitory concentration (IC(50)) value of ADR in resistant MCF-7/ADR or parental MCF-7 cells was determined by MTT assay. TaqMan RT-PCR or Western blot assay was performed to detect the expression of mature miR-21 and tumor suppressor gene (PTEN) protein. MCF-7 or MCF-7/ADR cell line was transfected with miR-21mimic or inhibitor. The IC(50) value of ADR was determined. Flow cytometry and TUNEL assays were performed to analyze apoptosis. The activity of caspase-3 was analyzed.
Drug Response:
resistant
Cancer basic information
Cancer:
breast cancer
Tissue/Cell:
cell line (MCF-7,MCF-7/ADR)
Other information
Title:
MicroRNA-21 modulates chemosensitivity of breast cancer cells to doxorubicin by targeting PTEN.
Journal:
Arch Med Res
Published:
2011
PubMed ID:
21820606