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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Cancer+Res
2015 ; 5
(3
): 1089-100
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Musashi-2 promotes hepatitis Bvirus related hepatocellular carcinoma progression
via the Wnt/?-catenin pathway
#MMPMID26045988
Wang MH
; Qin SY
; Zhang SG
; Li GX
; Yu ZH
; Wang K
; Wang B
; Teng MJ
; Peng ZH
Am J Cancer Res
2015[]; 5
(3
): 1089-100
PMID26045988
show ga
Our recent study observed that the expression of Musashi-2 (MSI2), a member of
the Musashi family, was up-regulated in hepatitis B virus (HBV) related
hepatocellular carcinoma parenchymal cells. Using quantitative PCR, tissue
microarray (TMA) and immunohistochemical staining, we evaluated MSI2 mRNA and
protein levels in tumor tissues from patients with different stages of
hepatocellular carcinoma with paired adjacent noncancerous sample sets. The
following techniques were used to further investigate MSI2 function and its
potential molecular mechanism: RNAi, wound healing assay, Transwell assay,
quantitative PCR and western blot analysis. Immunohistochemical detection of MSI2
on a TMA containing 106 paired specimens showed that increased cytoplasmic and
nuclear MSI2 staining was significantly associated with tumor size, tumor
differentiation, recurrence, TNM stage, vessel invasion and Ki-67 proliferative
index. Patients with MSI2-positive tumors had a significantly higher disease
recurrence rate and poorer survival than patients with MSI2-negative tumors after
radical surgery. Based on univariate analysis, MSI2 expression showed an
unfavorable influence on both disease-free survival and overall survival.
Multivariate analysis revealed that higher MSI2 expression, together with tumor
size, tumor differentiation, tumor thrombus, and Ki-67 expression were
independent predictors of overall survival. With MSI2 knockdown, hepatoma cell
migration and invasion were inhibited and the expression of ?-catenin, T cell
factor (TCF) and lymphoid enhancer factor (LEF) were dysregulated. Thus, we
propose that MSI2 may predict unfavorable outcomes in hepatitis B virus related
hepatocellular carcinoma and promote cancer progression via the Wnt/?-catenin
signaling pathway.