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2014 ; 15
(9
): 1226-38
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Genetically engineered Newcastle disease virus expressing interleukin-2 and
TNF-related apoptosis-inducing ligand for cancer therapy
#MMPMID24971746
Bai FL
; Yu YH
; Tian H
; Ren GP
; Wang H
; Zhou B
; Han XH
; Yu QZ
; Li DS
Cancer Biol Ther
2014[Sep]; 15
(9
): 1226-38
PMID24971746
show ga
Recombinant Newcastle disease virus (rNDV) have shown oncolytic therapeutic
efficacy in preclinical studies and are currently in clinical trials. In this
study, we have evaluated the possibility to enhance the cancer therapeutic
potential of NDV by means of inserting both interleukin-2 (IL-2) and tumor
necrosis factor-related apoptosis inducing ligand (TRAIL) delivered by rNDV. We
demonstrated that rNDV expressing TRAIL (rNDV-TRAIL) or both human IL-2 and TRAIL
(rNDV-IL-2-TRAIL) significantly enhanced inherent anti-neoplastic of rNDV by
inducing apoptosis. And we showed that apoptosis-related genes mRNA expression
was increased after treated with rNDV-TRAIL or rNDV-IL-2-TRAIL compared with rNDV
and rNDV-IL-2. We also demonstrated that both rNDV-IL-2 and rNDV-IL-2-TRAIL
induced proliferation of the CD4(+) and CD8(+) in treated mice and elicited
expression of TNF-? and IFN-? antitumor cytokines. These mice treated with
oncolytic agents exhibited significant reduction in tumor development compared
with mice treated with the parental virus. In addition, experiments in both
hepatocellular carcinoma and melanoma-bearing mice demonstrated that the
genetically engineered rNDV-IL-2-TRAIL exhibited prolonged animals' survival
compared with rNDV, rNDV-IL-2, and rNDV-TRAIL. In conclusion, the immunotherapy
and oncolytic virotherapy properties of NDV can be enhanced by the introduction
of IL-2 and TRAIL genes, whose products initiated a broad cascade of
immunological affects and induced tumor cells apoptosis in the microenvironment
of the immune system.