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2015 ; 14
(ä): 170
Nephropedia Template TP
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English Wikipedia
Aldolase B inhibits metastasis through Ten-Eleven Translocation 1 and serves as a
prognostic biomarker in hepatocellular carcinoma
#MMPMID26376879
Tao QF
; Yuan SX
; Yang F
; Yang S
; Yang Y
; Yuan JH
; Wang ZG
; Xu QG
; Lin KY
; Cai J
; Yu J
; Huang WL
; Teng XL
; Zhou CC
; Wang F
; Sun SH
; Zhou WP
Mol Cancer
2015[Sep]; 14
(ä): 170
PMID26376879
show ga
BACKGROUND: Downregulation of Aldolase B (ALDOB) has been reported in
hepatocellular carcinoma. However, its clinical significance and its role in
pathogenesis of HCC remain largely unknown. METHODS: We analyzed the expression
of ALDOB and its clinical features in a large cohort of 313 HCC patients using
tissue microarray and immunohistochemistry. Moreover, the function of stably
overexpressed ALDOB in HCC cells was explored in vitro and in vivo. Gene
expression microarray analysis was performed on ALDOB-overexpressing SMMC7721
cells to elucidate its mechanism of action. RESULTS: ALDOB downregulation in HCC
was significantly correlated with aggressive characteristics including absence of
encapsulation, increased tumor size (>5 cm) and early recurrence. ALDOB
downregulation was indicative of a shorter recurrence-free survival (RFS) and
overall survival (OS) for all HCC patients and early-stage HCC patients (BCLC 0-A
and TNM I stage patients). Multiple analyses revealed that ALDOB downregulation
was an independent risk factor of RFS and OS. Stable expression of ALDOB in HCC
cell lines reduced cell migration in vitro and inhibited lung metastasis,
intrahepatic metastasis, and reduced circulating tumor cells in vivo.
Mechanistically, we found that cells stably expressing ALDOB show elevated
Ten-Eleven Translocation 1 (TET1) expression. Moreover, ALDOB expressing cells
have higher levels of methylglyoxal than do control cells, which can upregulate
TET1 expression. CONCLUSION: The downregulation of ALDOB could indicate a poor
prognosis for HCC patients, and therefore, ALDOB might be considered a prognostic
biomarker for HCC, especially at the early stage. In addition, ALDOB inhibits the
invasive features of cell lines partly through TET1 expression.