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2016 ; 7
(44
): 71169-71181
Nephropedia Template TP
gab.com Text
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English Wikipedia
Low disabled-2 expression promotes tumor progression and determines poor survival
and high recurrence of esophageal squamous cell carcinoma
#MMPMID27036032
Wang WL
; Chang WL
; Yang HB
; Wang YC
; Chang IW
; Lee CT
; Chang CY
; Lin JT
; Sheu BS
Oncotarget
2016[Nov]; 7
(44
): 71169-71181
PMID27036032
show ga
Patients with esophageal squamous cell carcinomas (ESCCs) have poor survival and
high recurrence rate, but lack a prognostic biomarker. Disabled-2 (DAB2) is a
crucial tumor suppressor, but its roles in ESCCs are uncertain. We investigated
whether low DAB2 expression in ESCCs could lead into tumor progression and poor
prognosis. Our results found patients with low-DAB2 expression ESCCs had
significantly larger tumor size, deeper tumor invasion depth, lymph node
metastasis, worse survival, and higher recurrence rate (P<0.05). The
Cox-regression model revealed low-DAB2 expression was an independent factor of
poor survival (P<0.05), and also of tumor recurrence with the predictive
performance superior to clinical TNM stage (P<0.05). Low-DAB2 cancer cells,
validated by DAB2 knockdown or over-expression, had higher phosphorylated ERK and
migration abilities, which could be suppressed by ERK inhibitor treatment.
TGF-?-induced epithelial-to-mesenchymal transition (EMT) only existed in the
high-DAB2 cells, and related to worse prognosis of high-DAB2 ESCCs (P<0.05). In
conclusion, DAB2 can suppress the ERK signaling, but correlate to have
TGF-?-induced EMT in ESCCs. DAB2 expression could be a biomarker to identify
patients with worse survival and high recurrence. Our data suggest DAB2
expression can stratify patients in need of aggressive surveillance and with
possible benefit from anti-ERK or anti-TGF-? therapies.
|Adaptor Proteins, Signal Transducing/analysis/genetics/*physiology
[MESH]