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2017 ; 7
(1
): 10592
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Hypoxia-inducible factor 1 alpha promotes cancer stem cells-like properties in
human ovarian cancer cells by upregulating SIRT1 expression
#MMPMID28878214
Qin J
; Liu Y
; Lu Y
; Liu M
; Li M
; Li J
; Wu L
Sci Rep
2017[Sep]; 7
(1
): 10592
PMID28878214
show ga
Ovarian cancer have a poor overall survival rate in patients, and late disease
presentation and chemoresistance are the main factors that lead to the mortality
of ovarian cancer. Cancer stem cells (CSCs), a small subpopulation of cancer
cells, have been associated with resistance to chemo- and radio-therapy in cancer
treatment. Hypoxia is a common characteristic of many malignant tumors, and
increased HIF-1? expression predicts the poor prognosis of ovarian cancer. In
this study, we reported the relationship between hypoxia and cancer stem
cells-like properties in human ovarian cancer cell lines SKOV3 and HO8910, we
found that hypoxia induced cancer stem cells-like properties in ovarian cancer
cells. Moreover, SIRT1 was found to be the downstream target gene of HIF-1?,
which was involved in the promotion of cancer stem cells-like features in ovarian
cancer cells by hypoxia, and NF-?B signaling pathway was involved in
hypoxia-induced SIRT1 up-regulation. Our results hinted that HIF1? and SIRT1
might serve as potential therapeutic targets for ovarian cancer.