MicroRNA-150 inhibits osteosarcoma cell proliferation by targeting RUNX2 gene / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences)
;
(12): 1285-1290, 2016.
Article
Dans Chinois
| WPRIM
| ID: wpr-815096
ABSTRACT
To investigate the microRNA (miR)-150 expression level in human osteosarcoma cell lines (Saos-2, MG-63) and its function in cell proliferation, and to explore the potential molecular mechanisms.
Methods:
MiR-150 expression levels in human osteosarcoma cell lines (Saos-2, MG-63) and normal osteoblast cell line (NHOst) were detected by relative quantitative real-time PCR (qRT-PCR). MiR-150 was overexpressed in Saos-2 and MG-63 cells by lentivirus infection. Cell proliferation rates were monitored by MTS assay. RUNX2 and β-actin protein levels were examined by Western blot. Inhibitory effect of miR-150 on binding RUNX2 3'-UTR was detected by Dual-Luciferase assay.Results:
MiR-150 expression level is lower in human osteosarcoma cell lines (Saos-2, MG-63) compared to the normal osteoblast cell line (NHOst) (0.23±0.02 and 0.32±0.03 vs 1.00±0.02), which showed statistical significance (P<0.01). After lentivirus infection, miR-150 level increased in Saos-2 (P<0.01) and MG-63 cells (P<0.01). Overexpression of miR-150 decreased cell proliferation and RUNX2 protein level in Saos-2 and MG-63 cells. The binding of miR-150 to RUNX2 3'-UTR decreased luciferase activity by 69% in Saos-2 cells (P<0.05) and 59% in MG-63 cells (P<0.05). Administration of exogenous RUNX2 recovered the cell proliferation in miR-150 overexpressed Saos-2 and MG-63 cell lines (P<0.01).Conclusion:
MiR-150 inhibites proliferation in human osteosarcoma cell lines through binding to RUNX2 3'-UTR, resulting in the reducion of RUNX2 protein level.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Ostéoblastes
/
Pharmacologie
/
Physiologie
/
Tumeurs osseuses
/
Ostéosarcome
/
Régulation de l'expression des gènes tumoraux
/
Actines
/
Régions 3' non traduites
/
MicroARN
/
Lignée cellulaire tumorale
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Central South University(Medical Sciences)
Année:
2016
Type:
Article
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