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Cloning, expression, and antiviral activity of interferon β from the Chinese microbat, Myotis davidii (Download the PDF), B5 z* ~2 L# H$ e
Ying-Zi Liang, Li-Jun Wu, Qian Zhang, Peng Zhou, Mei-Niang Wang, Xing-Lou Yang, Xing-Yi Ge, Lin-Fa Wang, Zheng-Li Shi** }+ i4 a% c! G4 D2 t9 F% \# I8 U! I
9 K; p4 @ I2 UAbstract: Bats are natural reservoir hosts for many viruses that produce no clinical symptoms in bats.
/ [0 C5 F+ M4 m- `6 P) A: W% oTherefore, bats may have evolved effective mechanisms to control viral replication. However, little% S' z8 ^6 h1 q6 {: V7 _
information is available on bat immune responses to viral infection. Type I interferon (IFN) plays a! }( e7 [% z# t2 [. a
key role in controlling viral infections. In this study, we report the cloning, expression, and
5 z1 H7 z) z# M6 D( jbiological activity of interferon β (IFNβ) from the Chinese microbat species, Myotis davidii. We
8 Z' ]7 g" g$ j6 S5 [$ E& kdemonstrated the upregulation of IFNB and IFN-stimulated genes in a kidney cell line derived from
) n2 \4 E! ]% @7 T0 x0 t$ f5 ?( IM. davidii after treatment with polyI:C or infection with Sendai virus. Furthermore, the recombinant
& m. g) c( `) U D; SIFNβ inhibited vesicular stomatitis virus and bat adenovirus replication in cell lines from two bat) l7 H4 s. v1 y* w
species, M. davidii and Rhinolophus sinicus. We provide the first in vitro evidence of IFNβ antiviral
: Q5 {# n6 |0 Y# o. pactivity in microbats, which has important implications for virus interactions with these hosts.% q% `7 i/ S& w; c0 v( Q2 u
5 t! V9 p0 M6 A9 Z; k2 UKeywords: bat; interferon; IFN-stimulated genes; antiviral activity5 z# [& q) Q0 ?" D) N) u; g. @
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L) W W$ `+ `1 Q( ?% X( m中文信息:3 Z$ q2 D# l/ K# W6 y% n5 a
: u0 P1 u# X+ |# ^( m大卫鼠耳蝠干扰素β的克隆、表达和抗病毒活性检测& Y- T: O4 R A
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梁英子,吴利军,张倩,周鹏,王媚娘,杨兴娄,葛行义,王林发,石正丽*! X$ K# V4 D$ L% l$ }# j6 E
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$ Z& P X; h+ v摘要:蝙蝠是多种病毒的自然宿主,其中一些病毒是人畜新发传染病的病原。然而自然携带或人工感染病毒的蝙蝠并不表现出临床症状,其中机制未知。近期对两种蝙蝠基因组序列分析结果提示,蝙蝠可能具有一些独特的先天性免疫机制。本论文在前期研究基础上,用定量PCR技术分析病毒感染后蝙蝠干扰素及其诱导基因的应答水平;表达鼠耳蝠Ⅰ型干扰素和干扰素诱导蛋白,测试蝙蝠干扰素在不同来源的细胞中对病毒的抑制作用,试图初步了解病毒诱导的蝙蝠先天性免疫应答机制。+ q$ E% z% P" m1 K) c
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2 @% N0 u! g5 t关键词:干扰素,蝙蝠天然免疫,抗病毒活性,定量PCR
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