Use of C. elegans as a model to study aging-associated neurodegeneration
Use of C. elegans as a model to study aging-associated neurodegeneration
批准号:
10452825
负责人:
Dong Yan
金额:
$51.08万
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
项目状态:
已结题
起止时间:
2021-09-01 至 2022-05-31
关键词:
AffectAgeAgingAlzheimer&aposs DiseaseAnimal ModelAnimalsAstrocytesCaenorhabditis elegansCellsClinical ResearchDataDevelopmentDiseaseGenerationsGeneticGenetic ScreeningGenetic TranscriptionGenomicsGoalsHomologous GeneHost DefenseHumanImmune responseImmune signalingInfectionLeadMammalsMethodsModelingMolecularNerve DegenerationNervous system structureNeuritesNeurodegenerative DisordersNeurogliaNeuronsNeuropeptide ReceptorOutcomeParkinson DiseasePathogenesisPatientsPeptide Signal SequencesPeptidesPlayPopulationProbabilityProtein BiosynthesisPublishingRNA InterferenceRattusRegulationRisk FactorsRodentRoleSignal TransductionStructureSystemTranscriptional ActivationWorkagedantimicrobial peptidebasecell agedriving forcenew therapeutic targetnoveloverexpressionpreservationpreventreceptortool
中文摘要
点击翻译按钮获取中文摘要
英文摘要
Aging can cause neurodegeneration and is also a major risk factor for neurodegenerative diseases.
However, the molecular mechanisms underlying aging-associated neurodegeneration are not well understood
yet. Therefore, our-long-term goal is to understand the molecular mechanisms undying neurodegeneration in
aging and neurodegenerative diseases. The objective of this proposal is to use C. elegans as a model to
uncover novel mechanisms underlying aging-associated neurodegeneration. This proposal builds on our
recent punished work, in which we revealed that antimicrobial peptide (AMPs) released by epidermal cells in
aged animals lead to neurodegeneration through activating a neuropeptide receptor (NPR). Importantly, our
collaborators showed that signaling via the same molecular players (AMPs and NPR) also leads to neurite
degeneration in rat cortical neurons, supporting the conclusion that the mechanisms identified in our system
are preserved in mammalian neurons. Based on these exciting findings, we propose to use genetic and
genomic methods to further examine the signals that cause the overexpression of AMPs in aged animals and
to uncover the transcriptional regulators that lead to neurodegeneration upon aging. We believe that careful
analysis of aging-associated neurodegeneration in C. elegans will reveal previously unknown but potentially
conserved mechanisms that govern fundamental features of neurodegeneration in aging. This proposal will
determine the function and regulation of AMPs in aging-associated neurodegeneration (Aim 1), and establish
cell autonomous mechanisms underlying neurodegeneration in aged animals (Aim 2). It is expected that completion of this proposal will lead to the discovery of novel mechanisms of aging-associated
neurodegeneration, the establishment of C. elegans PVD neurons as a powerful model to study aging
associated neurodegeneration, and the generation of new tools for further studies. As many neurodegenerative disorders are associated with aging, our studies may lead to a better understanding of the pathogenesis of these diseases.
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Use of C. elegans as a model to study aging-associated neurodegeneration
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