miR-21 downregulation attenuates cell proliferation, migration and invasion in nasopharyngeal carcinoma / 中国癌症杂志
China Oncology
;
(12): 863-867, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-440056
ABSTRACT
Background and purpose:
miR-21 is ovexpressed in various types of human cancers. This study was designed to investigate the effect of miR-21 knockdown on cell proliferation, migration and invasion of nasopharyngeal carcinoma (NPC) cell line CNE2.Methods:
CNE2 was transfected with miR-21 inhibitor by LipofectamineTM2000. Meanwhile CNE2 was transfected with NC inhibitor as negative control. qRT-PCR was used to detect the miR-21 expression in these cells. The effects of miR-21 downregulation on cell proliferation, migration and invasion were evaluated by MTS, wound-healing Transwell and invasion assays.Results:
miR-21 expression was remarkably downregulated in miR-21 inhibitor-transfected cells in concentration-dependent manner, indicating transfection with miR-21 inhibitor can effectively reduce expression level of miR-21 in CNE2 cells. Transfection of miR-21 inhibitor into CNE2 cells led to a signiifcant decrease in cell proliferation rate compared with control cells (P<0.05). miR-21 downregulation results in reduction of cell migration(P<0.05). Moreover, the cell invasion by Transwell invasion assay was reduced in miR-21-downregulated cells relative to control cells.Conclusion:
miR-21 can promote cell proliferation, migration and invasion of NPC cells. And it maybe plays an important role in tumorigenesis and development of NPC.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Oncology
Year:
2013
Type:
Article
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