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Cloning, expression, and antiviral activity of interferon β from the Chinese microbat, Myotis davidii (Download the PDF)
8 @4 O0 _# W) CYing-Zi Liang, Li-Jun Wu, Qian Zhang, Peng Zhou, Mei-Niang Wang, Xing-Lou Yang, Xing-Yi Ge, Lin-Fa Wang, Zheng-Li Shi*5 s& W# w2 f: j$ f2 C
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Abstract: Bats are natural reservoir hosts for many viruses that produce no clinical symptoms in bats.
' g" q8 e8 R6 \; S @; n1 bTherefore, bats may have evolved effective mechanisms to control viral replication. However, little
$ Z9 M3 w# d9 d) _7 D0 Ainformation is available on bat immune responses to viral infection. Type I interferon (IFN) plays a
{2 Z3 _( }9 s2 vkey role in controlling viral infections. In this study, we report the cloning, expression, and
/ v/ U4 ?6 N+ xbiological activity of interferon β (IFNβ) from the Chinese microbat species, Myotis davidii. We$ `6 c0 c4 P; j
demonstrated the upregulation of IFNB and IFN-stimulated genes in a kidney cell line derived from {$ m1 l$ H, \6 [' f2 I' I, `$ h
M. davidii after treatment with polyI:C or infection with Sendai virus. Furthermore, the recombinant1 ~4 f3 i# I j/ O# o% o# ^! q
IFNβ inhibited vesicular stomatitis virus and bat adenovirus replication in cell lines from two bat
2 W* v o) \) Lspecies, M. davidii and Rhinolophus sinicus. We provide the first in vitro evidence of IFNβ antiviral
' n4 R0 o1 Y% @& e1 ~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/ w+ T/ X6 |/ b' R' H3 K
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- `* j# W0 Y7 j中文信息:0 Q9 o9 p0 n2 v/ k
) }- Y' c" S0 B2 ^9 Z. K' R大卫鼠耳蝠干扰素β的克隆、表达和抗病毒活性检测% R. g3 l3 C, O; x& N
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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*
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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。
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4 c! Q( f6 `) Y7 g* k2 V关键词:干扰素,蝙蝠天然免疫,抗病毒活性,定量PCR3 H) ~. K7 C, G9 M
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