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2017 ; 8
(47
): 82728-82739
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ING4 expressing oncolytic vaccinia virus promotes anti-tumor efficiency and
synergizes with gemcitabine in pancreatic cancer
#MMPMID29137298
Wu Y
; Mou X
; Wang S
; Liu XE
; Sun X
Oncotarget
2017[Oct]; 8
(47
): 82728-82739
PMID29137298
show ga
With no effective treatments available for most pancreatic cancer patients,
pancreatic cancer continues to be one of the most difficult malignancies to
treat. Oncolytic virus mediated-gene therapy has exhibited ubiquitous antitumor
potential. In this study, we constructed a novel oncolytic vaccinia virus
harboring the inhibitor of growth family member 4 gene (VV-ING4) to investigate
its therapeutic efficacy alone or in combination with gemcitabine against
pancreatic cancer cells in vitro and in vivo. ING4 expression was determined via
quantitative real-time polymerase chain reaction (qPCR) and western blot. The
cytotoxicity of VV-ING4 was measured using a cell proliferation assay. Both flow
cytometry and western blot were applied to analyze the cell cycle and apoptosis.
Furthermore, the combination inhibitory effect of VV-ING4 and gemcitabine was
assessed using Chou-Talalay analysis in vitro and a BLAB/c mice model in vivo. We
found that VV-ING4 significantly increases ING4 expression, displayed greater
cytotoxic efficiency, and induced pancreatic cancer cell apoptosis and G2/M phase
arrest. Additionally, the combination of VV-ING4 and gemcitabine synergistically
effect in vitro and in vivo. Taken together, our data implicate VV-ING4 as a
conceivable pancreatic cancer therapeutic candidate alone or in combination with
gemcitabine.