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2017 ; 8
(36
): 60270-60279
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Tumor repressor gene chondroadherin oppose migration and proliferation in
hepatocellular carcinoma and predicts a good survival
#MMPMID28947969
Deng X
; Wei W
; Huang N
; Shi Y
; Huang M
; Yan Y
; Li D
; Yi J
; Wang X
Oncotarget
2017[Sep]; 8
(36
): 60270-60279
PMID28947969
show ga
The molecular that used as prognosis and potential therapy target is urgently
needed in hepatocellular carcinoma (HCC). In current work, we found the
expression of CHAD (chondroadherin) was significantly reduced in hepatocellular
carcinoma compared to the normal tissue, on both mRNA and protein levels, in
three independent datasets. Survival analysis was implemented on these datasets,
and low expression of CHAD was found to be significantly associated with poor
survival. Furthermore, metastasis-averse HCC and metastasis-incline HCC group
comparison, and protein abundance evaluation of normal-tumor-portal vein tumor
thrombus pairs indicate that metastatic tendentiousness is reduced along with
CHAD abundance. Correlation analysis was also carried out and CHAD was shown to
be significantly associated with differentiation and metastasis. Multivariable
cox regression analysis showed that CHAD expression is more important for
prognosis, compared to the other clinical indicators. To facilitate the
utilization of CHAD clinically, a nomogram was plotted to estimate the three-year
survival rate. Functional assays testing the migration and proliferation ability
following knock down of CHAD in two cell lines, SMMC7721 and HCCLM3, were
performed and discovered that reduction of CHAD level significantly enhance both
proliferation and migration in both cell lines. Gene Set Enrichment Analysis
(GSEA) comparing the CHAD-low and CHAD-high group showed that KEGG signaling
pathways including "focal adhesion", "ECM receptor interaction", and "regulation
of actin cytoskeleton" were significantly enriched. In conclusion, as a potential
prognostic biomarker, tumor suppressor gene CHAD represses migration and
proliferation of hepatocellular carcinoma cells, probability via mediating
cell-cell adhesion.