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2017 ; 14
(4
): 4263-4269
Nephropedia Template TP
gab.com Text
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English Wikipedia
Knockdown of SALL4 expression using RNA interference induces cell cycle arrest,
enhances early apoptosis, inhibits invasion and increases chemosensitivity to
temozolomide in U251 glioma cells
#MMPMID28943937
Zhang L
; Yan Y
; Jiang Y
; Qian J
; Jiang L
; Hu G
; Lu Y
; Luo C
Oncol Lett
2017[Oct]; 14
(4
): 4263-4269
PMID28943937
show ga
Spalt-like transcription factor 4 (SALL4) is essential for the maintenance of the
self-renewal and pluripotent properties in embryonic stem cells. Although the
detailed mechanism remains unclear, dysregulation of SALL4 has been detected in
various malignancies. Previously, the authors' of the present study reported that
the expression level of SALL4 was associated with the poor prognosis of
glioblastoma multiforme (GBM). The present study aimed to investigate the
function of SALL4 in U251 human glioblastoma cells, including apoptosis and
invasion inhibition. It was revealed that knockdown of SALL4 expression through
RNA interference induced cell cycle arrest, enhanced early apoptosis and
significantly inhibited invasion. Furthermore, downregulation of SALL4 was
associated with a significantly lower expression level of the core transcription
factors, including POU class 5 homeobox 1, SRY-box 2 and Nanog homeobox. In
addition, inhibition of SALL4 significantly reduced the concentration of
chemotherapeutic agent temozolomide required to inhibit cell growth by 50%, which
decreased from 113.66±23.07 and 114.93±20.91 µg/ml to 68.34±3.52 and 67.44±4.71
µg/ml in two independent short interfering RNA transfected groups. These results
indicate that SALL4 serves an important role in the GBM pathophysiology and
targeting SALL4 may be a potential approach to the treatment of GBM.