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Cloning, expression, and antiviral activity of interferon β from the Chinese microbat, Myotis davidii (Download the PDF)4 ~; @+ F# U, u) l1 q% w# V
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*
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! X. @' [2 h7 @% ?/ H1 CAbstract: Bats are natural reservoir hosts for many viruses that produce no clinical symptoms in bats.5 b9 D- y4 U( G/ V; x8 @% v
Therefore, bats may have evolved effective mechanisms to control viral replication. However, little
$ N5 b3 S. ?6 X+ p; e; d minformation is available on bat immune responses to viral infection. Type I interferon (IFN) plays a
. W$ T$ r# T3 l3 G4 S* o# okey role in controlling viral infections. In this study, we report the cloning, expression, and9 F6 V( y& B+ m6 W! l
biological activity of interferon β (IFNβ) from the Chinese microbat species, Myotis davidii. We
t) u8 F1 N' A5 v/ S9 q: ?demonstrated the upregulation of IFNB and IFN-stimulated genes in a kidney cell line derived from/ k1 r1 f7 K- G! X8 L. E7 p3 P* c8 W
M. davidii after treatment with polyI:C or infection with Sendai virus. Furthermore, the recombinant
9 h* F: L1 D# H* {' v! {IFNβ inhibited vesicular stomatitis virus and bat adenovirus replication in cell lines from two bat
: m6 d) u; k2 f. E% B7 m# U, g; uspecies, M. davidii and Rhinolophus sinicus. We provide the first in vitro evidence of IFNβ antiviral# Q0 m0 q: u( Z# C6 {
activity in microbats, which has important implications for virus interactions with these hosts.
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Keywords: bat; interferon; IFN-stimulated genes; antiviral activity* a, b C' x$ |: V) L" F
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+ b$ U1 U9 K6 y+ r; ?/ `4 ^中文信息:& ~6 E3 g! B" X$ v) _7 q
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大卫鼠耳蝠干扰素β的克隆、表达和抗病毒活性检测0 G) z/ |6 K0 S* D/ N6 e; L- M1 K- Q
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8 B7 R2 a6 o+ L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*- }% r- i4 E2 |; a, \: q
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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。 Z9 p d9 M+ X" ?
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, Y; j; c$ s; q# ~3 m! j3 Z9 r关键词:干扰素,蝙蝠天然免疫,抗病毒活性,定量PCR
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