Regulation of inhibitory interneuron development
抑制性中间神经元发育的调节
基本信息
- 批准号:9762394
- 负责人:
- 金额:$ 25.13万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-03-01 至 2021-01-31
- 项目状态:已结题
- 来源:
- 关键词:AdultAffectAnatomyAnimal ModelBehavioralBiochemicalBiological AssayBiological ProcessBrainBrain DiseasesCell CountCell ProliferationComplexCorpus striatum structureDataDefectDevelopmentEmbryoEmbryonic DevelopmentEquilibriumFoundationsFunctional disorderFutureGangliaGenerationsGoalsHistologicHomologous GeneHumanImpairmentInterneuron functionInterneuronsKnockout MiceKnowledgeLateralLeadLinkMaintenanceMedialMental DepressionMental disordersMolecularMolecular AnalysisMolecular and Cellular BiologyMusNeurodevelopmental DisorderNeurologicNeuronsOutputPathogenesisPathway interactionsPatternPlayProcessProductionProsencephalonProtein-Serine-Threonine KinasesRegulationRegulatory PathwayResearchResolutionRoleSchizophreniaSignal PathwayStem cellsTestingTissuesTreatment Efficacyautism spectrum disorderbasecell growtheffective therapyexcitatory neuronimprovedin vivoinhibitory neuroninsightnemo-like kinasenerve stem cellneural circuitneurodevelopmentneurogenesisneuron developmentneuropsychiatric disorderneuropsychiatryneuroregulationnovelrecombinase-mediated cassette exchangesubventricular zone
项目摘要
The human brain consists of over one hundred billion neurons assembled into functional neural circuits, which
underlie all sophisticated brain functions. A precise balance between neuronal excitation and inhibition is
required for proper brain function, and the imbalance between them leads to various types of behavioral and
neurological problems including many complex brain disorders, such as schizophrenia, depression, and
autism. Regulatory mechanisms for excitatory and inhibitory neuron formation have been studied in great
detail, but those mechanisms regulating inhibitory interneurons are still being elucidated. The overarching goal
of this project is to better understand the regulatory pathways underlying inhibitory interneuron formation with
the hope that such insight will lead to the better understanding of complex brain disorders and the development
of effective therapeutics. In order to reach this goal, we began by identifying factors that could potentially affect
the development of the embryonic ganglionic eminences (GE), a ventral forebrain region where inhibitory
interneurons are born. We rationalized that such factors should be expressed in the GE and regulate signaling
pathways essential for controlling neurogenesis. Our initial studies reveal that Nemo-like kinase (NLK), an
evolutionarily conserved serine/threonine kinase, satisfies these criteria. We have found that Nlk (mouse
homologue of NLK) is specifically expressed in different regions of the GE, and loss of Nlk in mice causes a dramatic increase in the proliferation of neural progenitor cells and impairment of their differentiation into
mature inhibitory interneurons. Based on these preliminary studies, we hypothesize that Nlk plays a
fundamental role in the development of inhibitory interneurons. To investigate this idea, we propose the
following two major aims. In Aim 1, we will determine the role of Nlk in the control of neural progenitor cell
proliferation in the mouse GE. We will investigate specifically when, and how, Nlk influences progenitor cell
number in specific regions of the GE. In Aim 2, we will examine if Nlk is required for the proper differentiation and maintenance of specific subtypes of inhibitory interneurons in the cortex and striatum during embryonic and adult stages. We believe that the knowledge gained from the studies proposed in this application will fundamentally advance our understanding of the regulatory mechanisms of normal inhibitory interneuron formation, and thus provide insights into the relevance of this important process to understanding the pathogenesis of complex brain disorders.
人类大脑由超过1000亿个神经元组成,这些神经元组装成功能性神经回路,
是所有复杂的大脑功能的基础。神经元兴奋和抑制之间的精确平衡是
正常的大脑功能所必需的,它们之间的不平衡导致各种类型的行为和
神经系统问题,包括许多复杂的大脑疾病,如精神分裂症,抑郁症,
兴奋性和抑制性神经元形成的调节机制已经被大量研究,
详细说明,但那些调节抑制性中间神经元的机制仍在阐明中。
该项目的目的是更好地了解抑制性中间神经元形成的调控途径,
希望这样的见解将导致更好地了解复杂的大脑疾病和发展
为了达到这一目标,我们首先确定了可能影响
胚胎神经节隆起(GE)的发育,这是一个腹侧前脑区域,
我们认为这些因子应该在GE中表达并调节信号传导
我们的初步研究表明,Nemo-神经肽样激酶(NLK),
进化上保守的丝氨酸/苏氨酸激酶,满足这些标准。
NLK的同源物)在GE的不同区域中特异性表达,并且小鼠中NLK的缺失导致神经祖细胞增殖的显著增加和它们分化为神经元的损伤。
基于这些初步的研究,我们假设Nlk在抑制性中间神经元中起作用。
在抑制性中间神经元的发展中起着重要作用。为了研究这个想法,我们提出了
以下两个主要目标。在目标1中,我们将确定Nlk在神经祖细胞调控中的作用,
我们将具体研究Nlk何时以及如何影响祖细胞,
在目标2中,我们将研究Nlk是否是胚胎和成体阶段皮层和纹状体抑制性中间神经元特定亚型的正确分化和维持所必需的。我们相信,从这些研究中获得的知识,在这方面的应用将从根本上推进我们对正常抑制性中间神经元形成的调节机制的理解,从而提供对这一重要过程的相关性的见解,以了解复杂的脑疾病的发病机制。
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)
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Janghoo Lim其他文献
Janghoo Lim的其他文献
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{{ truncateString('Janghoo Lim', 18)}}的其他基金
Investigation of the role of ATXN1 in oligodendroglia and neurodegenerative diseases
ATXN1 在少突胶质细胞和神经退行性疾病中的作用研究
- 批准号:
10762709 - 财政年份:2022
- 资助金额:
$ 25.13万 - 项目类别:
Investigation of the role of ATXN1 in oligodendroglia and neurodegenerative diseases
ATXN1 在少突胶质细胞和神经退行性疾病中的作用研究
- 批准号:
10390899 - 财政年份:2022
- 资助金额:
$ 25.13万 - 项目类别:
Investigation of the role of ATXN1 in oligodendroglia and neurodegenerative diseases
ATXN1 在少突胶质细胞和神经退行性疾病中的作用研究
- 批准号:
10576381 - 财政年份:2022
- 资助金额:
$ 25.13万 - 项目类别:
Investigation of the role of ATXN1 in oligodendroglia and neurodegenerative diseases
ATXN1 在少突胶质细胞和神经退行性疾病中的作用研究
- 批准号:
10632309 - 财政年份:2022
- 资助金额:
$ 25.13万 - 项目类别:
Evaluation of a novel NLK function in lysosome biogenesis and neurodegenerative diseases
溶酶体生物合成和神经退行性疾病中新的 NLK 功能的评估
- 批准号:
10458774 - 财政年份:2021
- 资助金额:
$ 25.13万 - 项目类别:
Evaluation of a novel NLK function in lysosome biogenesis and neurodegenerative diseases
溶酶体生物合成和神经退行性疾病中新的 NLK 功能的评估
- 批准号:
10616786 - 财政年份:2021
- 资助金额:
$ 25.13万 - 项目类别:
Evaluation of a novel NLK function in lysosome biogenesis and neurodegenerative diseases
溶酶体生物合成和神经退行性疾病中新的 NLK 功能的评估
- 批准号:
10317219 - 财政年份:2021
- 资助金额:
$ 25.13万 - 项目类别:
Microglial regulation of Progranulin levels
小胶质细胞对颗粒体蛋白前体水平的调节
- 批准号:
10347312 - 财政年份:2020
- 资助金额:
$ 25.13万 - 项目类别:
Microglial regulation of Progranulin levels
小胶质细胞对颗粒体蛋白前体水平的调节
- 批准号:
10092071 - 财政年份:2020
- 资助金额:
$ 25.13万 - 项目类别:
Microglial regulation of Progranulin levels
小胶质细胞对颗粒体蛋白前体水平的调节
- 批准号:
10536631 - 财政年份:2020
- 资助金额:
$ 25.13万 - 项目类别:
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