Developing Effective Approaches to Extend Hematopoietic Healthspan by Targeting Cell-extrinsic and Cell-intrinsic Alterations at Middle Age
Developing Effective Approaches to Extend Hematopoietic Healthspan by Targeting Cell-extrinsic and Cell-intrinsic Alterations at Middle Age
批准号:
10192711
负责人:
Jennifer Jean Trowbridge
金额:
$47.75万
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
项目状态:
已结题
起止时间:
2018-08-01 至 2023-06-30
关键词:
ATAC-seqAgeAge of OnsetAgingBiologicalBloodBone MarrowC57BL/6 MouseCell physiologyCellsChromatinComplexDataFrequenciesGoalsHealthHematopoiesisHematopoieticHematopoietic NeoplasmsHematopoietic SystemHematopoietic stem cellsHumanIGF1 geneImmuneImpairmentIn VitroIncidenceInjectionsInsulin-Like Growth Factor IInsulin-Like-Growth Factor I ReceptorInterventionLymphoidLymphoid CellMolecularMolecular ProfilingMultipotent Stem CellsMusMyelogenousMyeloid CellsMyeloproliferative diseasePathway interactionsPopulationPrecision therapeuticsPredispositionProcessProductionPublic HealthReceptor SignalingRecombinant ProteinsRegenerative capacityResearchRiskSignal PathwaySignal TransductionSomatomedinsSystemTestingTherapeuticTherapeutic InterventionTissuesTranscriptVaccinationage relatedaging populationcell typeconditional knockoutfunctional declinehealthspanin vivoinfection riskmiddle agenovel strategiespreservationpreventreceptorresponseside effectstem cellstherapeutically effectivetherapy developmenttranscriptome sequencing
中文摘要
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英文摘要
PROJECT SUMMARY/ABSTRACT
The process of aging causes functional decline of the hematopoietic system, including reduced capacity for
regeneration, increased risk of infections, and increased risk of certain forms of blood cancer. This is a
significant health concern due to the increasing age of our population and incidence of these age-related
conditions. No intervention therapies currently exist to extend hematopoietic healthspan with aging, largely due
to a lack of understanding of the cellular and molecular alterations that cause functional hematopoietic decline.
Our novel approach is to identify cellular and molecular signatures of functional hematopoietic decline at its
age of onset, with the rationale that these signatures will point to early causes of decline and hence identify
prime targets for extending hematopoietic healthspan. Our preliminary data demonstrate that functional
hematopoietic decline occurs by middle age, that alterations in the bone marrow microenvironment at middle
age are necessary and sufficient to cause functional hematopoietic decline, and identify alterations in the
Insulin-like Growth Factor 1 (IGF1) signaling pathway at middle age as a strong candidate driver of functional
hematopoietic decline. This project will use cellular and molecular biological approaches in aging mice to
characterize the hematopoietic cell-extrinsic and cell-intrinsic alterations in IGF signaling at middle age that
cause functional hematopoietic decline. Results of this project will identify targeted, molecular- and cell type-
specific therapeutic strategies to preserve regenerative capacity and immune cell function during aging.
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会议论文
Discovery of Aging-Associated Mechanisms Causing Expansion and Progression of Clonal Hematopoiesis of Indeterminant Potential (CHIP)
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批准号:10645132
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资助金额:$47.28万
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财政年份:2020
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负责人:Jennifer Jean Trowbridge
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依托单位:
Discovery of Aging-Associated Mechanisms Causing Expansion and Progression of Clonal Hematopoiesis of Indeterminant Potential (CHIP)
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Discovery of Aging-Associated Mechanisms Causing Expansion and Progression of Clonal Hematopoiesis of Indeterminant Potential (CHIP)
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批准号:10226903
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Developing Effective Approaches to Extend Hematopoietic Healthspan by Targeting Cell-extrinsic and Cell-intrinsic Alterations at Middle Age
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批准号:10449973
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资助金额:$47.83万
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依托单位:
Developing Effective Approaches to Extend Hematopoietic Healthspan by Targeting Cell-Extrinsic and Cell-Intrinsic Alterations at Middle Age
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批准号:10771727
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项目类别:
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资助金额:$10.0万
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财政年份:2018
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依托单位:
Aging-induced Alterations in the Microenvironment as Drivers of Myeloid Lineage Skewing
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批准号:9542466
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资助金额:$15.0万
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财政年份:2017
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负责人:Jennifer Jean Trowbridge
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依托单位:
(PQB5) Epigenetic Drivers of Hematopoietic Stem Cell Transformation
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批准号:8685438
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财政年份:1997
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资助金额:$4.91万
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财政年份:1997
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依托单位:
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