Modulating Alzheimer's Disease progression by preserving intestinal health.
Modulating Alzheimer's Disease progression by preserving intestinal health.
批准号:
9371845
负责人:
Martin Borch Jensen
金额:
$13.21万
依托单位国家:
美国
项目类别:
财政年份:
2017
资助国家:
美国
项目状态:
已结题
起止时间:
2017-08-01 至 2019-07-31
关键词:
AffectAgeAgingAlzheimer&aposs DiseaseAlzheimer&aposs disease modelAmyloid beta-ProteinAmyloid depositionAntibioticsAntibodiesBacteriaBloodBrainCause of DeathCellsDataDepositionDevelopmentDevelopment PlansDiseaseDisease ProgressionDrosophila genusDysplasiaEncephalitisEtiologyGeneticGenetic TranscriptionHealthHemolymphHousingHumanImmuneImmunochemistryInflammationInflammatoryInflammatory ResponseInflammatory disease of the intestineInterventionIntestinesInvestigationLife Cycle StagesLongevityMediatingMentorsMethodologyMicrobeModelingMolecularMusNatureNerve DegenerationNeurobiologyNeurogliaNeuronsOrganismPathway interactionsPeptidesPeptidoglycanPharmacologic SubstancePhenotypePhysiologicalPopulationProcessProteinsRegimenReporterResearchRoleScientistSeveritiesSignal PathwaySignal TransductionSorting - Cell MovementStressStudy modelsSymbiosisSymptomsTechnical ExpertiseTestingTherapeuticTimeTissuesUnited StatesWestern Blottingage relatedamyloid peptideantimicrobial peptidebasecareer developmentcommensal microbescostcytokinedisease phenotypeexperienceflygenetic manipulationglial activationgut microbiomeimprovedmicrobialmicrobiomenegative affectneuron lossneuronal growthoverexpressionpreventprogramsreduce symptomsresponsetooltranscription factortranslational approach
中文摘要
点击翻译按钮获取中文摘要
英文摘要
PROJECT SUMMARY/ABSTRACT
Alzheimer’s Disease (AD) is the 6th leading cause of death in the United States, and is estimated to cost more than
$200B/year. Uniquely among the top ten causes of death, we have little ability to treat or prevent the disease. Although
the precise etiology of AD is still under investigation, strong evidence suggests a causative role for systemic
inflammation. The Jasper lab and others have shown that a healthy microbiome is essential for regulating intestinal
inflammation. A recent study demonstrated reduced Aβ plaque deposition and microglial activity when treating a mouse
AD model with long‐term antibiotics, suggesting that inflammation related to commensal bacteria could regulate
disease progression.
My preliminary data indicates that inflammatory cytokines from the Drosophila intestine reach the CNS and activate
JAK/STAT signaling in a subset of glial cells. Reducing intestinal loads ameliorates this signaling, reduces aggregate
formation and neurodegeneration in a fly model of AD, and improves health and survival. Here, I propose a mechanistic
study to delineate the signaling pathways and physiological consequences of intestinal inflammation reaching the brain.
My hypothesis is that commensal bacteria can induce secretion of cytokines from the intestine into the (blood‐
analogous) hemolymph, promoting neurodegenerative processes in brains burdened with the amyloid peptide Aβ42. My
research aims will establish how intestinal stress triggers inflammatory signaling and determine the nature of the
responsive glial cells in the brain. I will further establish the connection between this inflammatory response and Aβ
plaques, and apply both genetic and pharmaceutical interventions to reduce intestinal inflammation and thereby reduce
the phenotypes of the AD model.
My mentoring team consists of Prof. Heinrich Jasper, an expert on the Drosophila intestine and stress signaling, Prof.
Pejmun Haghighi, an expert on Drosophila neurobiology, and Prof. Dale Bredesen, an expert on AD. With their guidance I
will develop the conceptual understanding of neurobiology and AD, as well as the technical skills, required to carry out
this project and establish an independent research program. Their assistance will furthermore be invaluable in my
transition to independence as a scientist, as described in my career development plan.
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会议论文
In Vitro Toxicity Testing at Massive Scale in Diverse Primary Human Cells
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批准号:10335850
-
项目类别:
-
资助金额:$81.14万
-
财政年份:2021
-
负责人:Martin Borch Jensen
-
依托单位:
国内基金
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