Inhibitory effects of microRNA-107 on proliferation and in vitro vasculogenic mimicry of Ewing sarcoma cells and the mechanism / 肿瘤
Tumor
;
(12): 1282-1288, 2017.
Article
in Chinese
| WPRIM
| ID: wpr-848446
ABSTRACT
Objective:
To investigate the effects of microRNA-107 (miR-107) on the proliferation and in vitro vasculogenic mimicry of Ewing sarcoma cells, and to explore the possible mechanism.Methods:
The expression level of miR-107 in several Ewing sarcoma cell lines was detected by real-time fluorescent quantitative PCR. The synthesized miR-107 mimic and the scramble mimic (as the control) were transfected into Ewing sarcoma RD-ES and SK-ES-1 cells, respectively. The recovery of miR-107 expression in RD-ES and SK-ES-1 cells after transfection was verified by real-time fluorescent quantitative PCR. The effects of miR-107 overexpression on the proliferation and vascular mimicry formation of RD-ES and SK-ES-1 cells were detected by CCK-8 assay and matrigel vasculogenic mimicry assay, respectively. The expressions of hypoxia inducible factor-1ß (HIF-1ß) mRNA and protein in RD-ES and SK-ES-1 cells after transfection with miR-107 mimic were detected by real-time fluorescent quantitative PCR and Western blotting.Results:
Comparing with human mesenchymal stem cells, miR-107 was low expressed in Ewing sarcoma RD-ES and SK-ES-1 cells (both P < 0.01). After transfection with miR-107 mimic, the expression of miR-107 was significantly up-regulated in RD-ES and SK-ES-1 cells (both P < 0.01). The proliferation and vascular mimicry formation of RD-ES and SK-ES-1 cells were significantly inhibited after transfection with miR-107 mimic (all P < 0.05). Furthermore, miR-107 overexpression significantly suppressed the expressions of HIF-1ß mRNA and protein in RD-ES and SK-ES-1 cells (all P < 0.01).Conclusion:
miR-107 was low-expressed in Ewing sarcoma RD-ES and SK-ES-1 cells. The overexpression of miR-107 can inhibit the proliferation and vascularization of Ewing sarcoma cells, which may be related to the targeting regulation of HIF-1ß expression.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Tumor
Year:
2017
Type:
Article
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