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2017 ; 7
(1
): 10939
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SATB2/?-catenin/TCF-LEF pathway induces cellular transformation by generating
cancer stem cells in colorectal cancer
#MMPMID28887549
Yu W
; Ma Y
; Shankar S
; Srivastava RK
Sci Rep
2017[Sep]; 7
(1
): 10939
PMID28887549
show ga
Recent studies have demonstrated the involvement of colorectal cancer (CRC) stem
cells (CSC) in transformation, cancer progression and metastasis. The main goal
of this paper was to examine the molecular mechanisms by which SATB2 induced
malignant transformation of colorectal epithelial cells. SATB2 induced malignant
transformation and these transformed cells gained the characteristics of CSCs by
expressing stem cell markers (CD44, CD133, LGR5 and DCLK1) and transcription
factors (c-Myc, Nanog and Sox2). Overexpression of SATB2 in normal colorectal
epithelial cells increased cell motility, migration and invasion, which were
associated with an increase in N-cadherin and Zeb1, and decrease in E-cadherin
expression. SATB2 overexpression also upregulated XIAP and cyclin D1, suggesting
its role in cell survival and cell cycle. Furthermore, the expression of SATB2
was positively correlated with ?-catenin expression in CRC. In contrary,
depletion of SATB2 inhibited cell proliferation, colony formation, cell motility
and expression of ?-catenin, Snail, Slug, Zeb1 and N-cadherin, and upregulated
E-cadherin. Furthermore, SATB2 silencing inhibited the expression of stem cell
markers, pluripotency maintaining transcription factors, cell cycle and cell
proliferation/survival genes and TCF/LEF targets. Finally, ?-catenin/TCF-LEF
pathway mediated the biological effects of SATB2 in CSCs. These studies support
the role of SATB2/?-catenin/TCF-LEF pathway in transformation and carcinogenesis.
|*Cell Transformation, Neoplastic
[MESH]
|Cell Movement
[MESH]
|Cell Proliferation
[MESH]
|Colorectal Neoplasms/*metabolism
[MESH]
|HCT116 Cells
[MESH]
|HT29 Cells
[MESH]
|Humans
[MESH]
|Matrix Attachment Region Binding Proteins/*genetics/metabolism
[MESH]