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2015 ; 10
(6
): 2071-2078
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Isolation and characterization of side population cells from the human ovarian
cancer cell line SK-OV-3
#MMPMID26668597
Ruan Z
; Liu J
; Kuang Y
Exp Ther Med
2015[Dec]; 10
(6
): 2071-2078
PMID26668597
show ga
Ovarian cancer (OC) is the most malignant type of gynecological tumor due to its
high recurrence rate following initial treatment. Previous studies have indicated
that cancer stem cells (CSCs) may be a potential cause underlying the high
proportion of recurrence. Side population (SP) cells isolated from cancer cell
lines have been shown to exhibit characteristics associated with CSCs, but
studies on SP cells in human ovarian SK-OV-3 cell line are limited. In the
present study, the SP cell fraction (4.83% of the total cell population) was
isolated using flow cytometry, and analyzed by immunocytochemical analysis and
reverse transcription-quantitative polymerase chain reaction. The results showed
that SP cells exhibited a high mean fluorescence intensity for CD44, a CSC
marker, in addition to elevated expression of the CSCs-associated genes,
ATP-binding cassette sub-family G member 2 and Nestin. These findings indicated
the stem cell-like features of the SP cells. Furthermore, a colony formation test
showed that the isolated SP cells possessed a marked capacity for
self-regeneration and proliferation. In addition, a cell cycle assay involving
cisplatin indicated that the SP cells were strongly resistant to chemotherapy. In
conclusion, the present results suggested that SP cells isolated from the SK-OV-3
cell line exhibited properties typically associated with CSCs. Therefore, the
isolated SP cells may be used to provide novel insight into potential therapies
against OC.