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2015 ; 15
(ä): 939
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Sorafenib suppresses the epithelial-mesenchymal transition of hepatocellular
carcinoma cells after insufficient radiofrequency ablation
#MMPMID26620566
Dong S
; Kong J
; Kong F
; Kong J
; Gao J
; Ji L
; Pan B
; Chen L
; Zheng L
; Sun W
BMC Cancer
2015[Nov]; 15
(ä): 939
PMID26620566
show ga
BACKGROUND: Epithelial-mesenchymal transition (EMT) played an important role in
the progression of hepatocellular carcinoma (HCC) after insufficient
radiofrequency ablation (RFA). However, whether sorafenib could be used to
suppress the EMT of HCC after insufficient RFA and further prevent the
progression of residual HCC remains poorly unknown. METHODS: Insufficient RFA was
simulated using a water bath (47 °C 5, 10, 15, 20 and 25 min gradually). MTT
assay and transwell assay were used to evaluate the effects of sorafenib on
viability, migration and invasion of HepG2 and SMMC7721 cells after insufficient
RFA in vitro. After insufficient RFA, the molecular changes in HCC cells with the
treatment of sorafeinb were evaluated using western blot and ELISAs. An ectopic
nude mice model was used to evaluate the effect of sorafenib on the growth of
HepG2 cells in vivo after insufficient RFA. RESULTS: HepG2 and SMMC7721 cells
after insufficient RFA (named as HepG2-H and SMMC7721-H) exhibited enhanced
viability, migration and invasion in vitro. Sorafenib inhibited the enhanced
viability, migration and invasion of HepG2 and SMMC7721 cells after insufficient
RFA. Molecular changes of EMT were observed in HepG2-H and SMMC7721-H cells.
Sorafenib inhibited the EMT of HepG2-H and SMMC7721-H cells. HepG2-H cells also
exhibited larger tumor size in vivo. Higher expression of PCNA, Ki67, N-cadherin,
MMP-2 and MMP-9, was also observed in HepG2-H tumors. Sorafenib blocked the
enhanced growth of HepG2 cells in vivo after insufficient RFA. CONCLUSIONS:
Sorafenib inhibited the EMT of HCC cells after insufficient RFA, and may be used
to prevent the progression of HCC after RFA.