Synergistic effects of silica exposure, virus infection and genetic predisposition in systemic autoimmunity
二氧化硅暴露、病毒感染和遗传易感性对系统性自身免疫的协同作用
基本信息
- 批准号:10372295
- 负责人:
- 金额:$ 43.2万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-05-01 至 2025-04-30
- 项目状态:未结题
- 来源:
- 关键词:AccelerationAffectAgeArthralgiaAutoantibodiesAutoantigensAutoimmuneAutoimmunityB-LymphocytesChronicCritical PathwaysDefectDiseaseEnvironmental ExposureEnvironmental Risk FactorEpidemiologyExanthemaExposure toFatigueFeverGene Expression ProfileGeneral PopulationGenesGeneticGenetic Predisposition to DiseaseHeterogeneityHuman Herpesvirus 4ImmuneImmune ToleranceImmune systemIndividualInfectionInfectious AgentInflammasomeInflammationInflammatoryInhalationInterferon Type IInterferonsKidney FailureLeadLifeLinkLung InflammationLupusLymphocytic choriomeningitis virusMediatingModelingMonozygotic twinsMouse StrainsMusNucleic AcidsOccupational ExposureOnset of illnessPathogenesisPathway interactionsPatientsPredisposing FactorPredispositionPrevalenceProductionQuality of lifeReceptor ActivationRoleSelf ToleranceSeveritiesSignal InductionSilicon DioxideSilicosisSystemSystemic Lupus ErythematosusT-LymphocyteTimeToll-like receptorsTransgenic MiceTransgenic OrganismsVirusVirus Diseasesanergyautoreactive B cellautoreactive T cellchronic infectioncrystallinitycytokinehuman diseaseimmune activationinnate immune pathwaysmortalitymouse modelperipheral tolerancesystemic autoimmune diseasesystemic autoimmunityvirus genetics
项目摘要
Project Summary
Systemic lupus erythematosus (SLE), the prototypic systemic autoimmune disease, is characterized by
immune system hyperactivation, autoantibody production, and multiorgan inflammation. Although genetic
predisposition is critical for disease expression, the low concordance rate in monozygotic twins (<40%)
suggests the essential contribution of additional factors, mostly provided through environmental exposures.
Indeed, significant epidemiological evidence has linked SLE and other systemic autoimmune disease to
crystalline silica exposure but also to certain viral infections. Considering the critical role of innate immune
activation in systemic autoimmunity, we hypothesized that silica inhalation, virus infection, and genetic
predisposing factors synergize by activating distinct innate immunostimulatory pathways, that together lead to
more efficient break of tolerance, earlier disease onset, and more severe autoimmune manifestations. In
support of this hypothesis, we provide preliminary evidence that silica and virus exposures more effectively
induce autoimmune manifestations in mouse models of lupus when given in combination than when given
individually. Here we will use this experimental system to define the mechanistic basis of the interplay
between virus infection and silica, including the temporal requirements of silica exposure and virus infection,
the contribution of innate inflammatory pathways differentially induced by silica and virus, and roles of these
factors in breaking immunological tolerance.
项目摘要
系统性红斑狼疮(SLE)是典型的系统性自身免疫性疾病,其特征在于:
免疫系统过度激活、自身抗体产生和多器官炎症。
易感性是疾病表达的关键,单卵双胞胎的低一致率(<40%)
表明其他因素的重要贡献,主要是通过环境暴露提供的。
事实上,重要的流行病学证据已经将SLE和其他系统性自身免疫性疾病与
结晶二氧化硅暴露,而且某些病毒感染。考虑到先天免疫的关键作用,
我们假设二氧化硅吸入、病毒感染和遗传性自身免疫激活,
诱发因素通过激活不同的先天免疫刺激途径协同作用,共同导致
更有效的耐受性破坏,更早的疾病发作和更严重的自身免疫表现。
支持这一假设,我们提供了初步的证据,二氧化硅和病毒暴露更有效地
在狼疮小鼠模型中诱导自身免疫表现
在这里,我们将使用这个实验系统来定义相互作用的机械基础。
病毒感染和二氧化硅之间的关系,包括二氧化硅暴露和病毒感染的时间要求,
二氧化硅和病毒不同诱导的先天性炎症途径的贡献,以及它们的作用
破坏免疫耐受的因素。
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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{{ truncateString('ROBERTO G BACCALA', 18)}}的其他基金
Differential role of TASL and SLC15A4 in TLR responses to nucleic acids and lupus development
TASL 和 SLC15A4 在 TLR 对核酸反应和狼疮发展中的不同作用
- 批准号:
10583337 - 财政年份:2022
- 资助金额:
$ 43.2万 - 项目类别:
Synergistic effects of silica exposure, virus infection and genetic predisposition in systemic autoimmunity
二氧化硅暴露、病毒感染和遗传易感性对系统性自身免疫的协同作用
- 批准号:
10401216 - 财政年份:2021
- 资助金额:
$ 43.2万 - 项目类别:
Synergistic effects of silica exposure, virus infection and genetic predisposition in systemic autoimmunity
二氧化硅暴露、病毒感染和遗传易感性对系统性自身免疫的协同作用
- 批准号:
10379171 - 财政年份:2021
- 资助金额:
$ 43.2万 - 项目类别:
Synergistic effects of silica exposure, virus infection and genetic predisposition in systemic autoimmunity
二氧化硅暴露、病毒感染和遗传易感性对系统性自身免疫的协同作用
- 批准号:
10615669 - 财政年份:2021
- 资助金额:
$ 43.2万 - 项目类别:
Synergistic effects of silica exposure, virus infection and genetic predisposition in systemic autoimmunity
二氧化硅暴露、病毒感染和遗传易感性对系统性自身免疫的协同作用
- 批准号:
10053262 - 财政年份:2020
- 资助金额:
$ 43.2万 - 项目类别:
Genetic Dissection of arenavirus-induced lethality
沙粒病毒引起的致死率的基因剖析
- 批准号:
9088332 - 财政年份:2015
- 资助金额:
$ 43.2万 - 项目类别:
Cysteine Protease Network in Tumor Progression and Therapy
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8014894 - 财政年份:2007
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$ 43.2万 - 项目类别:
Anti-Tumor Autoimmunity by lymphopenia T cell Expansion
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7369853 - 财政年份:2005
- 资助金额:
$ 43.2万 - 项目类别:
Anti-Tumor Autoimmunity by lymphopenia T cell Expansion
通过淋巴细胞减少 T 细胞扩增来抗肿瘤自身免疫
- 批准号:
7026954 - 财政年份:2005
- 资助金额:
$ 43.2万 - 项目类别:
Anti-Tumor Autoimmunity by lymphopenia T cell Expansion
通过淋巴细胞减少 T 细胞扩增来抗肿瘤自身免疫
- 批准号:
6921788 - 财政年份:2005
- 资助金额:
$ 43.2万 - 项目类别:
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