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2017 ; 10
(ä): 1317-1325
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Salinomycin repressed the epithelial-mesenchymal transition of epithelial ovarian
cancer cells via downregulating Wnt/?-catenin pathway
#MMPMID28280366
Li R
; Dong T
; Hu C
; Lu J
; Dai J
; Liu P
Onco Targets Ther
2017[]; 10
(ä): 1317-1325
PMID28280366
show ga
Epithelial ovarian cancer (EOC) is the leading cause of death among all
gynecological malignancies. Most patients are diagnosed in the advanced stage and
have distant metastasis ultimately. Salinomycin has been demonstrated to reduce
invasive capacity of multiple tumor cells. The objective of this study was to
investigate the effects of salinomycin on EOC cells. The cell counting kit 8
(CCK-8) and Boyden chamber assays showed that salinomycin could effectively
reduce the abilities of proliferation, migration and invasion in EOC cells. The
western blot assay showed that salinomycin could increase the expression of
epithelial markers (E-cadherin and Keratin) while decrease the expression of
mesenchymal markers (N-cadherin and vimentin) in a dose-dependent manner. These
results were ascertained by reverse transcription polymerase chain reaction
(RT-PCR). Besides, salinomycin could downregulate the expression of proteins
associated with the Wnt/?-catenin pathway and repress the nuclear translocation
of ?-catenin. It was also shown that salinomycin could reverse the aberrant
activation of the canonical Wnt pathway induced by GSK-3? inhibitor (SB216763).
Our results revealed that salinomycin could inhibit the proliferation, migration
and invasion in EOC cells. In addition, the inhibitive effect of salinomycin on
the invasive ability was mediated by repressing the epithelial-mesenchymal
transition (EMT) program, which may be achieved through its inhibition of the
Wnt/?-catenin pathway.