Type I and
type III in
terferons (IFN
thmlsrc">text stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1043466615002987&_mathId=si1.gif&_user=111111111&_pii=S1043466615002987&_rdoc=1&_issn=10434666&md5=196248d9738c98eff79f658e73c1b662" title="Click to view the MathML source">伪尾thContainer hidden">thCode">th altimg="si1.gif" overflow="scroll">w>伪尾w>th> and IFN
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tiviral cy
tokines. In addi
tion, IFN
thmlsrc">text stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1043466615002987&_mathId=si1.gif&_user=111111111&_pii=S1043466615002987&_rdoc=1&_issn=10434666&md5=196248d9738c98eff79f658e73c1b662" title="Click to view the MathML source">伪尾thContainer hidden">thCode">th altimg="si1.gif" overflow="scroll">w>伪尾w>th> is increasingly recognised as po
ten
tially disease-promo
ting in infec
tion. We explored
the roles of
these IFN families in influenza infec
tion and as an
ti-influenza
trea
tmen
t. When comparing influenza-infec
ted 129
to C57BL/6 mouse s
trains,
we found increased lung damage, morbidi
ty and mor
tali
ty, ye
t higher levels of IFN
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than in
the more resis
tan
t C57BL/6 mice. IFN
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tor deficiency in 129 mice decreased morbidi
ty and lung damage, and ameliora
ted immune-media
ted
tissue damage, indica
ting
tha
t IFN
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t de
terminan
t of influenza severi
ty. In con
tras
t,
the respira
tory epi
thelial an
ti-influenza response
was unaffec
ted by IFN
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tor deficiency, as IFN
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these cells. Lack of IFN
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the dea
th-inducing recep
tor DR5 on lung epi
thelia and i
ts ligand TRAIL on inflamma
tory monocy
tes, and deple
tion of PDCA-1+ cells or in
terrup
tion of TRAIL-DR5 in
terac
tion pro
tec
ted infec
ted 129 mice. Therefore, excessive IFN
thmlsrc">text stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1043466615002987&_mathId=si1.gif&_user=111111111&_pii=S1043466615002987&_rdoc=1&_issn=10434666&md5=196248d9738c98eff79f658e73c1b662" title="Click to view the MathML source">伪尾thContainer hidden">thCode">th altimg="si1.gif" overflow="scroll">w>伪尾w>th> signalling in response
to acu
te influenza infec
tion may explain morbidi
ty. Our resul
ts sugges
t tha
t humans
wi
th propensi
ty
to s
trong IFN
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t risk of severe influenza.
We assessed the implications of our results for influenza treatment, using C57BL/6 mice with a functional Mx1 allele. Treatment with either IFNthmlsrc">text stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1043466615002987&_mathId=si13.gif&_user=111111111&_pii=S1043466615002987&_rdoc=1&_issn=10434666&md5=1dbcd6969613dfdb7c19153f732e1f5f" title="Click to view the MathML source">伪thContainer hidden">thCode">th altimg="si13.gif" overflow="scroll">w>伪w>th>4 or IFNthmlsrc">text stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S1043466615002987&_mathId=si2.gif&_user=111111111&_pii=S1043466615002987&_rdoc=1&_issn=10434666&md5=3eb748473e3a01b400e0a66db2acb375" title="Click to view the MathML source">位thContainer hidden">thCode">th altimg="si2.gif" overflow="scroll">w>位w>th>2 prior to infection blocked influenza replication and protected against host morbidity and mortality. In contrast, outcome of IFN treatment during influenza infection was divergent. Results of IFN therapy will be presented and discussed in the context of treatment options for influenza in humans.