Molecular Basis of cDC1 Development
cDC1 开发的分子基础
基本信息
- 批准号:10649736
- 负责人:
- 金额:$ 55.99万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-06-17 至 2027-05-31
- 项目状态:未结题
- 来源:
- 关键词:ATAC-seqAblationAddressAntigen-Presenting CellsAntigensBindingBypassCCAAT-Enhancer-Binding ProteinsCD8-Positive T-LymphocytesCRISPR/Cas technologyCell physiologyCell surfaceCellsChIP-seqChimeric ProteinsClinicalComplexCritiquesCross PresentationDataDendritic CellsDependenceDevelopmentElementsEnhancersEpitopesExhibitsFLT3 geneFLT3 ligandFamily memberGene TargetingGenerationsGenesGeneticGenetic TranscriptionGoalsHomeostasisHumanImmune responseImmunityIn VitroInfectionLiteratureLymphoid TissueMHC antigenMacrophageMethodsMolecularMusMyelogenousMyeloid CellsOutputPathway interactionsPeptide Initiation FactorsPeptidesPopulationProcessProductionProteinsPublishingReagentReporterReportingRepressionRoleRouteSignal InductionSignal TransductionSiteSpecific qualifier valueSuggestionSystemT cell responseT-Cell ActivationTestingTherapeuticTimeTumor-DerivedVaccinesViralVirusWorkadaptive immune responsedesigneffector T cellgranulocytein vivointerestmonocytenovelprogenitorresponsestem cellstooltranscription factortumoruptake
项目摘要
ABSTRACT
The initial adaptive immune response to tumors and many viruses relies on the priming of CD8 T cells to gen-
erate cytolytic effector T cells that can specifically target tumors or virally infected cells. The priming of CD8 T
cells to these agents is carried out in vivo by a particular type of antigen presenting cell that is a component of
the myeloid system and a member of the family of dendritic cells. Classical dendritic cells (cDCs) comprise
several closely related lineages that are clearly distinct from other myeloid cells such as macrophages, mono-
cytes or granulocytes. Primarily, cDCs serve to activate T cells against infections in the central lymphoid tis-
sues, rather than carrying out direct effector functions at sites of infections as the other myeloid lineages do.
The cDCs are themselves comprised of at least two major branches, now called cDC1 and cDC2. The cDC1
is a lineage that specializes in the uptake and processing of cell-associated antigens, such as from tumors of
virally infected cells and the expression of peptide epitopes on its cell surface in conjunction with MHC-I mole-
cules. This form of antigen:MHC-I complex is able to activate CD8 T cells, and not CD4 T cells. This process is
called cross-presentation. The cDC2 is not capable of carrying out cross-presentation to viruses or tumors in
vivo. The cDC1 has many genetic and molecular differences from cDC2; cDC1 require a distinct set of tran-
scription factors for their development that are not required for cDC2. This includes dependence on the tran-
scription factors Nfil3, Id2, Irf8 and Batf3. Our recent work showed that the genetic hierarchy among these fac-
tors has Nfil3 as the first and initiating factor, acting to indirectly induce Id2 and Batf3 via the suppression of the
repressor Zeb2. However, it is still unknown how Nfil3 is induced to initiate this process, and how Nfil3 works to
suppress Zeb2 expression. It has recently become important to understand these details because of the clini-
cal interest to apply Flt3L administration as a therapeutic in expanding the in vivo population of cDC1. It has
been known for some time that Fl3L can expand dendritic cells in general and expand cDC1 in particular. But
we have uncovered a surprising and worrisome fact; Flt3L administration will expand cDC1-like cells even in
Nfil3-deficient mice, which completely lack cDC1 beforehand. The expansion of cDC1 in Nfil3-deficent mice
produced by Flt3L is of the same magnitude as the expansion in WT mice. Thus, Flt3L is inducing cDC1 by a
different genetic route than normal cDC1 development. There has been no test of whether such cDC1 cells
function normally and will boost an immune response. This application will systematically address this issue by
Aim 1) defining the normal process by which Nfil3 is induced, Aim 2) define the mechanism by which NFIL3
drives cDC1 development, and Aim 3) determine whether Flt3-induced cDC1 function normally and determine
the mechanism by which Flt3L bypasses the normal requirement for Nfil3 in cDC1 development.
摘要
对肿瘤和许多病毒的初始适应性免疫应答依赖于CD8 T细胞的启动,以产生
产生可以特异性靶向肿瘤或病毒感染细胞的细胞溶解效应T细胞。CD8 T的启动
细胞与这些试剂的结合是通过特定类型的抗原呈递细胞在体内进行的,所述抗原呈递细胞是
骨髓系统和树突状细胞家族的成员。经典的树突状细胞(cDC)包括
几个密切相关的谱系,明显不同于其他骨髓细胞,如巨噬细胞,单核细胞,
细胞或粒细胞。首先,cDC用于激活T细胞对抗中枢淋巴组织中的感染。
而不是像其他骨髓谱系那样在感染部位直接发挥效应子功能。
cDC本身由至少两个主要分支组成,现在称为cDC 1和cDC 2。CDC1
是一个专门吸收和处理细胞相关抗原的谱系,例如来自肿瘤的抗原。
病毒感染的细胞和其细胞表面上的肽表位与MHC-I分子结合的表达,
克里斯这种形式的抗原:MHC-I复合物能够激活CD8 T细胞,而不是CD4 T细胞。这个过程是
称为交叉呈现。cDC2不能在细胞内对病毒或肿瘤进行交叉呈递。
vivo. cDC 1与cDC 2具有许多遗传和分子差异; cDC 1需要一组不同的跨膜转运蛋白,
它们的发展不需要cDC2的转录因子。这包括对trans-transmitting的依赖。
转录因子Nfil3、Id2、Irf8和Batf3。我们最近的研究表明,这些因素之间的遗传层次-
tors具有Nfil3作为第一个和起始因子,通过抑制
阻遏子Zeb2。然而,Nfil3是如何被诱导启动这一过程的,以及Nfil3是如何工作以
抑制Zeb2表达。最近,了解这些细节变得很重要,因为临床-
因此,我们有兴趣将Flt3L施用用作扩大cDC 1体内群体的治疗剂。它有
一段时间以来,已知F13L通常可以扩增树突状细胞,特别是扩增cDC 1。但
我们已经发现了一个令人惊讶和令人担忧的事实; Flt3L给药将扩增cDC 1样细胞,即使在
Nfil3缺陷小鼠,其预先完全缺乏cDC 1。cDC 1在Nfil3缺陷小鼠中的扩增
Flt3L产生的扩增与WT小鼠中的扩增具有相同的量级。因此,Flt3L通过一种抑制剂诱导cDC 1。
与正常cDC1发育不同的遗传途径。目前还没有测试这种cDC1细胞是否
功能正常,并会增强免疫反应。本申请将系统地解决这一问题,
目的1)定义诱导NFIL3的正常过程,目的2)定义诱导NFIL3的机制,
目的3)确定Flt3诱导的cDC 1功能是否正常,并确定
Flt3L绕过cDC 1发育中Nfil3正常需求的机制。
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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Kenneth M Murphy其他文献
Competition for cytokines: Treg cells take all
细胞因子的竞争:调节性 T 细胞独占鳌头
- DOI:
10.1038/ni1207-1285 - 发表时间:
2007-12-01 - 期刊:
- 影响因子:27.600
- 作者:
Alexander Scheffold;Kenneth M Murphy;Thomas Höfer - 通讯作者:
Thomas Höfer
Recent progress in type 1 classical dendritic cell cross-presentation - cytosolic, vacuolar, or both?
- DOI:
10.1016/j.coi.2023.102350 - 发表时间:
2023-08-01 - 期刊:
- 影响因子:
- 作者:
Ray A Ohara;Kenneth M Murphy - 通讯作者:
Kenneth M Murphy
Kenneth M Murphy的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Kenneth M Murphy', 18)}}的其他基金
Transcriptional basis of embryonic macrophage development
胚胎巨噬细胞发育的转录基础
- 批准号:
10531441 - 财政年份:2022
- 资助金额:
$ 55.99万 - 项目类别:
Transcriptional basis of embryonic macrophage development
胚胎巨噬细胞发育的转录基础
- 批准号:
10654858 - 财政年份:2022
- 资助金额:
$ 55.99万 - 项目类别:
Understanding the Mechanisms of DC Licensing in CD8 T Cell Priming
了解 CD8 T 细胞启动中 DC 许可的机制
- 批准号:
10211694 - 财政年份:2021
- 资助金额:
$ 55.99万 - 项目类别:
Understanding the Mechanisms of DC Licensing in CD8 T Cell Priming
了解 CD8 T 细胞启动中 DC 许可的机制
- 批准号:
10411993 - 财政年份:2021
- 资助金额:
$ 55.99万 - 项目类别:
Mechanism of c-MYC repression by IRF8 in myeloid lineages
IRF8 在骨髓谱系中抑制 c-MYC 的机制
- 批准号:
10379675 - 财政年份:2021
- 资助金额:
$ 55.99万 - 项目类别:
Understanding the Mechanisms of DC Licensing in CD8 T Cell Priming
了解 CD8 T 细胞启动中 DC 许可的机制
- 批准号:
10630938 - 财政年份:2021
- 资助金额:
$ 55.99万 - 项目类别:
Mechanism of c-MYC repression by IRF8 in myeloid lineages
IRF8 在骨髓谱系中抑制 c-MYC 的机制
- 批准号:
10493389 - 财政年份:2021
- 资助金额:
$ 55.99万 - 项目类别:
Function of Wdfy4 in cross-presentation and immunity
Wdfy4在交叉呈递和免疫中的功能
- 批准号:
10203752 - 财政年份:2019
- 资助金额:
$ 55.99万 - 项目类别:
Function of Wdfy4 in cross-presentation and immunity
Wdfy4在交叉呈递和免疫中的功能
- 批准号:
10430144 - 财政年份:2019
- 资助金额:
$ 55.99万 - 项目类别:
相似海外基金
心房細動に対するPulsed Field Ablationの組織創傷治癒過程を明らかにする網羅的研究
阐明房颤脉冲场消融组织伤口愈合过程的综合研究
- 批准号:
24K11201 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Targeted ablation of cerebral atherosclerosis using supramolecular self-assembly
利用超分子自组装靶向消融脑动脉粥样硬化
- 批准号:
24K21101 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
遅延造影心臓MRIによる心房細動Ablation冷却効果の比較:28 vs. 31 mm Cryoballoon
使用延迟对比增强心脏 MRI 比较房颤消融冷却效果:28 毫米与 31 毫米 Cryoballoon
- 批准号:
24K11281 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
CAREER: Heat Penetration Depth and Direction Control with Closed-Loop Device for Precision Ablation
职业:利用闭环装置控制热穿透深度和方向,实现精确烧蚀
- 批准号:
2338890 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Continuing Grant
Collaborative Research: RUI: Frontal Ablation Processes on Lake-terminating Glaciers and their Role in Glacier Change
合作研究:RUI:湖终止冰川的锋面消融过程及其在冰川变化中的作用
- 批准号:
2334777 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Continuing Grant
Collaborative Research: RUI: Frontal Ablation Processes on Lake-terminating Glaciers and their Role in Glacier Change
合作研究:RUI:湖终止冰川的锋面消融过程及其在冰川变化中的作用
- 批准号:
2334775 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Continuing Grant
InSPACE-VT_Development and Validation of Virtual Pace Mapping to Guide Catheter Ablation of Ventricular Tachycardia
InSPACE-VT_虚拟起搏测绘的开发和验证以指导室性心动过速导管消融
- 批准号:
EP/Z001145/1 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Fellowship
Collaborative Research: RUI: Frontal Ablation Processes on Lake-terminating Glaciers and their Role in Glacier Change
合作研究:RUI:湖终止冰川的锋面消融过程及其在冰川变化中的作用
- 批准号:
2334776 - 财政年份:2024
- 资助金额:
$ 55.99万 - 项目类别:
Continuing Grant
MRI: Acquisition of a Laser Ablation - Inductively Coupled Plasma - Triple Quadrupole - Mass Spectrometer (LA-ICP-QQQ-MS) System For Research and Education
MRI:获取用于研究和教育的激光烧蚀 - 电感耦合等离子体 - 三重四极杆 - 质谱仪 (LA-ICP-MS/MS) 系统
- 批准号:
2320040 - 财政年份:2023
- 资助金额:
$ 55.99万 - 项目类别:
Standard Grant
Collaborative Research: CDS&E: An experimentally validated, interactive, data-enabled scientific computing platform for cardiac tissue ablation characterization and monitoring
合作研究:CDS
- 批准号:
2245152 - 财政年份:2023
- 资助金额:
$ 55.99万 - 项目类别:
Standard Grant














{{item.name}}会员




