Sting Trafficking and Signaling Beyond Interferon
毒刺贩运和干扰素以外的信号传导
基本信息
- 批准号:10368072
- 负责人:
- 金额:$ 52.64万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-04-22 至 2024-03-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAffectAreaAutoimmune DiseasesAutophagocytosisBiologyCalciumCalcium SignalingCell DeathCell SurvivalCell physiologyCellsChronicDevelopmentDiseaseGene ExpressionGenesGoalsGolgi ApparatusHerpesvirus 1HumanIRF3 geneIn VitroInfectionInnate Immune ResponseInterferon Type IInterferonsLigand BindingLipidsLocationLung diseasesLysosomesMediatingMembraneMicrobeMolecularMusMutant Strains MiceNPC1 genePathologyPathway interactionsPhosphotransferasesPhysiologicalPhysiologyPilot ProjectsPlayPoint MutationProcessProteinsProteomicsResourcesRestRoleRouteSignal PathwaySignal TransductionSting InjuryT-Cell ProliferationT-LymphocyteTBK1 geneTOLLIP geneTimeVascular DiseasesVesicleWorkcofactorcytopeniagain of functiongain of function mutationhuman diseasein vivoinfancyinsightinterestmouse modelmutantrecruittherapeutic targettraffickingtranscription factor
项目摘要
Project summary
STING-mediated type I interferon (IFN) signaling plays an important role in innate immune response in infection
and autoimmune disease. The STING signaling pathway is unique in that it requires STING trafficking from the
ER through ERGIC/Golgi to vesicles, during which time STING recruits kinase TBK1 and transcription factor
IRF3 which subsequently activates IFN gene expression. STING trafficking also activates other non-IFN
pathways under pathophysiological conditions such as cell death and autophagy, although the mechanism is
unclear. We showed that dominant STING gain-of-function mutations constitutively activate STING trafficking in
vitro and causes lung disease and T cell cytopenia independently of IFN signaling in vivo. In preliminary studies
we performed a time-resolved proteomic study using STING-APEX2 and identified several cofactors at various
membrane locations along the trafficking route. Our main hypothesis is that STING trafficking is a primordial way
for STING to regulate multiple cellular processes including IFN and non-IFN pathways, such as calcium signaling,
cell death and autophagy. The non-IFN functions of STING are likely important for human physiology because
at least one such function is implicated in human disease STING-associated vasculopathy with onset in infancy
(SAVI). We will study the function of STING trafficking and non-IFN functions through the following three specific
aims: In Aim 1, we will study the cellular process of STING trafficking by discovering new cofactors along the
trafficking route and elucidating their mechanism of action. In Aim 2, we will investigate one particular non-IFN
function, the UPR, that is mediated by STING trafficking in T cells, using the dominant gain-of-function Sting-
N153S mouse with active disease pathology. In Aim 3, we will broadly explore non-IFN functions of STING in a
variety of physiological conditions, using a new point mutant mouse Sting-S365A, which selectively blocks
STING-mediated IFN signaling while retaining normal trafficking and other signaling capabilities. Studies
proposed here will address a previously understudied but important area of STING biology and reveal new
functions of STING with pathophysiological relevance.
项目总结
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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Nan Yan的其他文献
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{{ truncateString('Nan Yan', 18)}}的其他基金
The Mitochondrion-STING Axis in An Early Childhood Onset Neurodegenerative Disease
儿童早期发病的神经退行性疾病中的线粒体-STING 轴
- 批准号:
10297664 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
Mechanism of STING-mediated Neuropathology in Niemann-Pick Disease
STING 介导的尼曼-皮克病神经病理学机制
- 批准号:
10454283 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
Mammalian RNA Exosome in Maintaining Skin Homeostasis and Hair Follicle Immune Privilege
哺乳动物 RNA 外泌体维持皮肤稳态和毛囊免疫特权
- 批准号:
10205886 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
Mechanism of STING-mediated Neuropathology in Niemann-Pick Disease
STING 介导的尼曼-皮克病神经病理学机制
- 批准号:
10653132 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
Mechanism of STING-mediated Neuropathology in Niemann-Pick Disease
STING 介导的尼曼-皮克病神经病理学机制
- 批准号:
10274942 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
The Mitochondrion-STING Axis in An Early Childhood Onset Neurodegenerative Disease
儿童早期发病的神经退行性疾病中的线粒体-STING 轴
- 批准号:
10482351 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
The Mitochondrion-STING Axis in An Early Childhood Onset Neurodegenerative Disease
儿童早期发病的神经退行性疾病中的线粒体-STING 轴
- 批准号:
10653215 - 财政年份:2021
- 资助金额:
$ 52.64万 - 项目类别:
Sting Trafficking and Signaling Beyond Interferon
毒刺贩运和干扰素以外的信号传导
- 批准号:
10591495 - 财政年份:2020
- 资助金额:
$ 52.64万 - 项目类别:
RNA Surveillance in B cell by the Mammalian Cytoplasmic RNA Exosome
哺乳动物细胞质 RNA 外泌体对 B 细胞的 RNA 监视
- 批准号:
10041640 - 财政年份:2020
- 资助金额:
$ 52.64万 - 项目类别:
RNA Surveillance in B cell by the Mammalian Cytoplasmic RNA Exosome
哺乳动物细胞质 RNA 外泌体对 B 细胞的 RNA 监视
- 批准号:
10194375 - 财政年份:2020
- 资助金额:
$ 52.64万 - 项目类别:
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