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2011 ; 89
(3
): 351-7
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English Wikipedia
The anti-tumor agent, 5,6-dimethylxanthenone-4-acetic acid (DMXAA), induces
IFN-beta-mediated antiviral activity in vitro and in vivo
#MMPMID21084628
Shirey KA
; Nhu QM
; Yim KC
; Roberts ZJ
; Teijaro JR
; Farber DL
; Blanco JC
; Vogel SN
J Leukoc Biol
2011[Mar]; 89
(3
): 351-7
PMID21084628
show ga
The 2009 outbreak of pandemic H1N1 influenza, increased drug resistance, and the
significant delay in obtaining adequate numbers of vaccine doses have heightened
awareness of the need to develop new antiviral drugs that can be used
prophylactically or therapeutically. Previously, we showed that the experimental
anti-tumor drug DMXAA potently induced IFN-? but relatively low TNF-? expression
in vitro. This study confirms these findings in vivo and demonstrates further
that DMXAA induces potent antiviral activity in vitro and in vivo. In vitro,
DMXAA protected RAW 264.7 macrophage-like cells from VSV-induced cytotoxicity and
moreover, inhibited replication of influenza, including the TamifluŽ-resistant
H1N1 influenza A/Br strain, in MDCK cells. In vivo, DMXAA protected WT C57BL/6J
but not IFN-?(-/-) mice from lethality induced by the mouse-adapted H1N1 PR8
influenza strain when administered before or after infection. Protection was
accompanied by mitigation of weight loss, increased IFN-? mRNA and protein levels
in the lung, and significant inhibition of viral replication in vivo early after
DMXAA treatment. Collectively, this study provides data to support the use of
DMXAA as a novel antiviral agent.