Systems biology of Ebola virus and Lassa virus determinants of infection outcome
埃博拉病毒和拉沙病毒感染结果的系统生物学决定因素
基本信息
- 批准号:10374720
- 负责人:
- 金额:$ 42.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-02-01 至 2023-01-31
- 项目状态:已结题
- 来源:
- 关键词:Adaptive Immune SystemAffectAfricaAnimal ModelAntibodiesAreaCase Fatality RatesCatalogsCellsClinicalCommunicable DiseasesComplementComputer ModelsContainmentDataData SetDevelopmentDiseaseDisease OutcomeEbolaEbola Hemorrhagic FeverEbola virusEpitopesFutureGenerationsGeneticGenotypeGlycoproteinsGoalsHumanImmuneImmune EvasionIndividualInfectionIntegration Host FactorsInvestigationLassa FeverLassa virusLeadLinkMissionModelingMolecularMutationOutcomePatientsPersonsPlayProcessRiskRodentRoleSeroprevalencesSeveritiesSeverity of illnessSuggestionSurvivorsSystemSystems BiologyTechnologyTestingTherapeuticViralViral Hemorrhagic FeversVirusVirus Diseasesantibody engineeringassociated symptombaseco-infectioncohortcostdeep sequencingexperimental studyfitnessgenomic datahuman diseasehuman pathogeninsightpathogenpredictive markerpredictive modelingtechnological innovationtransmission processviral genomicsvirus genetics
项目摘要
Project Summary / Abstract
Lassa virus and Ebola virus are two of the most devastating human pathogens and infection with both can
lead to severe hemorrhagic fever with case fatality rates in excess of 70%. It is estimated that tens of
thousands of people die from Lassa fever each year. Despite the high case fatality rates of hospitalized Ebola
and Lassa fever patients, it is well established that asymptomatic or mildly symptomatic infections occur in
both Lassa fever and Ebola. We know that virus genetics play key roles in determining disease severity,
however, mechanistic insights are lacking and no systematic studies have been performed to identify virus
correlates of human disease. Similarly, a high proportion of Lassa fever and Ebola survivors develop serious
long-term symptoms associated with their disease, but virus factors that may determine these complications
remain elusive.
The central hypothesis of this project, is that specific genetic factors in Lassa and Ebola viruses critically
influence infection outcomes. Working directly with unique Lassa and Ebola patient and survivor cohorts in
West Africa, we will identify Lassa virus and Ebola virus factors that are determinants of human disease. We
will integrate high-throughput ‘omics’ approaches, high-containment experimentation, and computational
modeling to elucidate molecular networks that determine infectious disease severity. Based on these findings,
we will build predictive models that can be used to determine risk from Lassa virus and Ebola virus infection.
We will achieve these goals by completing three overarching goals. In Specific Aim 1, we will create and
analyze large-scale genomic data sets of Lassa and Ebola viruses, and genotype of infected patients. We will
perform deep investigations of how the viruses evolve as they transmit from their natural reservoirs to humans
and between humans, and determine how that can affect clinical outcomes. In Specific Aim 2, we will
functionally characterize, in a high-throughput manner, individual Lassa virus and Ebola virus mutations
hypothesized to influence infectious outcomes. Finally, in Specific Aim 3 we will perform experiments in high
containment to determine functional effects of individual mutations in Lassa virus and Ebola virus, and
investigate mechanisms of immune escape and infection. As part of this aim, we will also engineer antibodies
to better target both viruses, which can be used as a starting point for future therapeutics.
项目概要/摘要
拉沙病毒和埃博拉病毒是两种最具破坏性的人类病原体,感染这两种病毒都可以
导致严重出血热,病死率超过 70%。 据估计,有数十
每年有数千人死于拉沙热。 尽管埃博拉住院病死率很高
和拉沙热患者,众所周知,无症状或轻度症状的感染发生在
拉沙热和埃博拉病毒。 我们知道,病毒遗传学在确定疾病严重程度方面发挥着关键作用,
然而,缺乏机制见解,也没有进行系统研究来识别病毒
人类疾病的相关性。 同样,很大比例的拉沙热和埃博拉幸存者会出现严重的症状
与疾病相关的长期症状,但病毒因素可能决定这些并发症
仍然难以捉摸。
该项目的中心假设是,拉沙病毒和埃博拉病毒中的特定遗传因素至关重要
影响感染结果。 直接与独特的拉沙和埃博拉患者和幸存者群体合作
在西非,我们将确定拉沙病毒和埃博拉病毒因素,它们是人类疾病的决定因素。 我们
将整合高通量“组学”方法、高封闭性实验和计算
建模以阐明决定传染病严重程度的分子网络。 基于这些发现,
我们将建立可用于确定拉沙病毒和埃博拉病毒感染风险的预测模型。
我们将通过完成三个总体目标来实现这些目标。 在具体目标 1 中,我们将创建并
分析拉沙病毒和埃博拉病毒的大规模基因组数据集以及感染患者的基因型。 我们将
对病毒从自然宿主传播到人类时如何进化进行深入研究
以及人类之间的差异,并确定这如何影响临床结果。 在具体目标 2 中,我们将
以高通量方式对个体拉沙病毒和埃博拉病毒突变进行功能表征
假设会影响感染结果。 最后,在具体目标 3 中,我们将在高条件下进行实验
遏制以确定拉沙病毒和埃博拉病毒个体突变的功能影响,以及
研究免疫逃逸和感染的机制。 作为这一目标的一部分,我们还将设计抗体
更好地针对这两种病毒,这可以作为未来治疗的起点。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Kristian Graugaard Andersen其他文献
Kristian Graugaard Andersen的其他文献
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{{ truncateString('Kristian Graugaard Andersen', 18)}}的其他基金
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10653441 - 财政年份:2022
- 资助金额:
$ 42.5万 - 项目类别:
Consortium for Viral Systems Biology (CViSB)
病毒系统生物学联盟 (CViSB)
- 批准号:
10469781 - 财政年份:2021
- 资助金额:
$ 42.5万 - 项目类别:
Consortium for Viral Systems Biology Administrative Core
病毒系统生物学联盟行政核心
- 批准号:
10469782 - 财政年份:2021
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10440593 - 财政年份:2021
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10631738 - 财政年份:2020
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10910587 - 财政年份:2020
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10394323 - 财政年份:2020
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10842168 - 财政年份:2020
- 资助金额:
$ 42.5万 - 项目类别:
West African Emerging Infectious Disease Research Center (WA-EIDRC)
西非新发传染病研究中心 (WA-EIDRC)
- 批准号:
10616665 - 财政年份:2020
- 资助金额:
$ 42.5万 - 项目类别:
Consortium for Viral Systems Biology Administrative Core
病毒系统生物学联盟行政核心
- 批准号:
10579082 - 财政年份:2018
- 资助金额:
$ 42.5万 - 项目类别:
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