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2016 ; 7
(24
): 36255-36265
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
The Hippo transducer TAZ promotes cell proliferation and tumor formation of
glioblastoma cells through EGFR pathway
#MMPMID27167112
Yang R
; Wu Y
; Zou J
; Zhou J
; Wang M
; Hao X
; Cui H
Oncotarget
2016[Jun]; 7
(24
): 36255-36265
PMID27167112
show ga
TAZ, a WW-domain-containing transcriptional co-activator, is important for
development of various tissues in mammals. Recently, TAZ has been found to be
overexpressed in some types of human cancers. However, the role of TAZ in
glioblastoma remains unclear. In this study, we found that TAZ was overexpressed
in prognostically poor glioblastoma patients. Through knocking down or
overexpressing TAZ in U87 and LN229 cells, the expression level of TAZ was found
to be positively related to cell proliferation in vitro and tumor formation in
vivo. Further investigation indicated that TAZ could significantly promote the
acceleration of cell cycle. Moreover, the western blot for p-EGFR, p-AKT,
p-ERK1/2, p21, cyclin E and CDK2 proteins, target genes of the EGFR pathway,
indicated that TAZ significantly activated EGFR/AKT/ERK signaling. Additionally,
the blockage of EGFR pathway resulted in a significantly inhibition of cell
proliferation induced by TAZ. Taken together, these results demonstrate that TAZ
can promote proliferation and tumor formation in glioblastoma cells by
potentiating the EGFR/AKT/ERK pathway, and provide the evidence for promising
target for the treatment of glioblastoma.