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2014 ; 7
(4
): 865-72
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Transforming growth factor-?1 regulates epithelial-mesenchymal transition in
association with cancer stem-like cells in a breast cancer cell line
#MMPMID24955155
Jia Y
; Wu D
; Yun F
; Shi L
; Luo N
; Liu Z
; Shi Y
; Sun Q
; Jiang L
; Wang S
; Du M
Int J Clin Exp Med
2014[]; 7
(4
): 865-72
PMID24955155
show ga
Epithelial-mesenchymal transition (EMT) is associated with altered connection and
junctions between cells and changes in abilities of invasion and migration. In
this study, we investigated whether SK-BR-3 breast cancer cells induced to
undergo EMT exhibit changes in morphological and invasion abilities after
Transforming growth factor ?1 (TGF-?1) treatment. Serum-deprived SK-BR-3 cells
were treated with TGF-?1 (0, 10 ng/mL) for 24 h. The cells morphological changes
were observed and imaged using inverted phase contrast microscope. Scratch
experiment and invasion experiment were employed to detect changes of invasion
ability, cell-flow experiment was used to assess cell cycle, immunohistochemistry
technique was used to detect epithelial and mesenchymal markers after the
crawling cells were fixed. Our research reveal that SK-BR-3 cells become larger
and more messy, the elongated cells extend pseudopodia, the link of the cells
became more loosely and cell gap widened after TGF-?1 treatment. SK-BR-3 cells
showed faster growing and improved invasion abilities after TGF-?1 treatment, and
reduced G1 phase cells proportion in the total number of cells after the
conversion, in contrast the S phase cells accounted for the proportion of the
total number of cells increased. These findings indicate that TGF-?1-induced EMT
in breast cancer cells may be associated with major alterations in morphological
and invasion abilities.