Origin of the innate immunity suppression caused by nairovirus' protease activity

内罗病毒蛋白酶活性引起先天免疫抑制的起源

基本信息

  • 批准号:
    8827934
  • 负责人:
  • 金额:
    $ 25.11万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2013
  • 资助国家:
    美国
  • 起止时间:
    2013-11-20 至 2018-10-31
  • 项目状态:
    已结题

项目摘要

Summary/Abstract Crimean-Congo hemorrhagic fever virus (CCHFV) is a ssRNA (-) nairovirus that produces fever, prostration, and severe hemorrhages in humans. Fatality rates associated with CCHFV range from 5- 80% based on phylogenetic variation of the virus, transmission route, and different treatment facilities. Originally identified in Russia and the Congo, CCHFV has rapidly spread across large sections of Europe, Asia, and Africa. Recently, U.S. citizen traffic has increased substantially to the regions endemic with CCHFV, specifically South Central Asia. As a result, there is a substantial risk for transmission of CCHFV and/or its tick vector to the United States. Intriguingly, CCHFV is not the only nairovirus that threatens the public. Nairobi Sheep Disease virus (NSDV) as well as nairoviruses Hazara, Dugbe and Erve can cause human disease of varying severity and economic distress. Currently, there is no vaccine or prophylactic available for treatment of CCHF or other any other nairovirus related diseases. Recent reports have identified a viral homologue of the ovarian tumor protease (vOTU) located within the nairovirus genome and implicated its possible involvement in down-regulation of the Interferon type 1 immune response through cleavage of post-translational modifying proteins ubiquitin (Ub) and Ub-like interferon-simulated gene 15 (ISG15). As a result, it has been suggested to be a virulence factor. This proposal will determine whether dual deubiquitinating and deISGylating activities are conserved functions of this subclass of proteases in vitro and in vivo. Additionally, these experiments will gain insight into their mechanism of recognition for Ub and ISG15 allowing greater predictability of currently unknown vOTUs. The proposal will also seek to evaluate a potential correlation between the in vitro activity/substrate specificity of these nairovirus vOTUs and overall virulence of the nairoviruses in question. The resulting information will also provide critical insight into the role of vOTUs play in viruses that may ultimately have practicality in the development of prophylactics targeting vOTUs.
摘要/文摘

项目成果

期刊论文数量(0)
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Scott Dusan Pegan其他文献

Scott Dusan Pegan的其他文献

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{{ truncateString('Scott Dusan Pegan', 18)}}的其他基金

Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10120003
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10673300
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10689136
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10774369
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10480951
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10264937
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    10757071
  • 财政年份:
    2020
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    9171939
  • 财政年份:
    2013
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    8614887
  • 财政年份:
    2013
  • 资助金额:
    $ 25.11万
  • 项目类别:
Origin of the innate immunity suppression caused by nairovirus' protease activity
内罗病毒蛋白酶活性引起先天免疫抑制的起源
  • 批准号:
    9044012
  • 财政年份:
    2013
  • 资助金额:
    $ 25.11万
  • 项目类别:

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