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2014 ; 8
(5
): 1461-74
Nephropedia Template TP
gab.com Text
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Hexokinase 2-mediated Warburg effect is required for PTEN- and
p53-deficiency-driven prostate cancer growth
#MMPMID25176644
Wang L
; Xiong H
; Wu F
; Zhang Y
; Wang J
; Zhao L
; Guo X
; Chang LJ
; Zhang Y
; You MJ
; Koochekpour S
; Saleem M
; Huang H
; Lu J
; Deng Y
Cell Rep
2014[Sep]; 8
(5
): 1461-74
PMID25176644
show ga
Accumulating evidence suggests that codeletion of the tumor suppressor genes Pten
and p53 plays a crucial role in the development of castration-resistant prostate
cancer in vivo. However, the molecular mechanism underlying
Pten-/p53-deficiency-driven prostate tumorigenesis remains incompletely
understood. Building upon insights gained from our studies with
Pten-/p53-deficient mouse embryonic fibroblasts (MEFs), we report here that
hexokinase 2 (HK2) is selectively upregulated by the combined loss of Pten and
p53 in prostate cancer cells. Mechanistically, Pten deletion increases HK2 mRNA
translation through the activation of the AKT-mTORC1-4EBP1 axis, and p53 loss
enhances HK2 mRNA stability through the inhibition of miR143 biogenesis. Genetic
studies demonstrate that HK2-mediated aerobic glycolysis, known as the Warburg
effect, is required for Pten-/p53-deficiency-driven tumor growth in xenograft
mouse models of prostate cancer. Our findings suggest that HK2 might be a
therapeutic target for prostate cancer patients carrying Pten and p53 mutations.