Testing miR-132 signaling and replacement as a common strategy for AD, FTD, and related pathologies
测试 miR-132 信号传导和替代作为 AD、FTD 和相关病理的常见策略
基本信息
- 批准号:10228414
- 负责人:
- 金额:$ 84.39万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-09-30 至 2022-08-31
- 项目状态:已结题
- 来源:
- 关键词:AffectAgingAlzheimer&aposs DiseaseAlzheimer&aposs disease pathologyAlzheimer&aposs disease related dementiaAlzheimer&aposs disease therapyAmyloidApoptoticAutopsyBiologyBrainBrain PathologyCell DeathCell modelCessation of lifeClinicalCodeCognitionCognitiveDataDementiaDevelopmentDiagnosisDiseaseDown-RegulationFrontotemporal DementiaGene ExpressionGenesGeneticGenetic TranscriptionGlutamatesGoalsHealthHippocampus (Brain)HumanHuntington DiseaseInvestigationLaboratoriesLeadLearningLinkMAPT geneMediatingMedicineMemoryMetabolicMetabolismMicroRNAsModelingMolecularMolecular TargetMusMutationNerve DegenerationNervous system structureNeurodegenerative DisordersNeurofibrillary TanglesNeuronal PlasticityNeuronsOligonucleotidesParkinson DiseasePathogenesisPathogenicityPathologicPathologyPathway interactionsPatientsPhenotypePhysiologicalPlayPrefrontal CortexProgressive Supranuclear PalsyPropertyRNARNA metabolismRegulationRegulator GenesRodentRoleSenile PlaquesSignal PathwaySignal TransductionSmall RNASocietiesSupplementationSynapsesSynaptic plasticityTauopathiesTechnologyTemporal LobeTestingToxic effectToxinTransgenic ModelWorkamyloid pathologybiological adaptation to stresscosteffective therapyfamilial Alzheimer diseasein vivoinduced pluripotent stem cellinsightmouse modelmutantneuron developmentneuron lossneuropathologyneurophysiologyneuroprotectionnovelnovel therapeuticsoverexpressionpre-clinicalpresenilinrelating to nervous systemreligious order studystressortau Proteinstau aggregationtherapeutic miRNAuptake
项目摘要
Project Summary / Abstract
Alzheimer’s disease (AD) and Frontotemporal Dementia (FTD) are the most common neurodegenerative
disorders that lead to dementia in millions of patients. The number of people affected by these diseases and
the corresponding cost to society is predicted to double within 20 years. To develop effective therapies, new
biomedical approaches, concepts, and molecular targets are critically needed. The discovery of a novel class
of molecular regulators called microRNA (miRNA) has revolutionized biology and is predicted to have a major
impact on medicine. miRNAs, the small non-protein-coding RNAs, post-transcriptionally regulate gene
expression in various physiological and pathological conditions. Accumulating evidence suggests that
dysregulated miRNA signaling plays an important role in several neurodegenerative diseases, including AD
and FTD. A specific miRNA, miR-132, previously implicated in neuronal development, plasticity, and viability,
has recently emerged as the most significantly down-regulated in the early stages of AD, as well as FTD and
PSP. It is associated with the AD pathology, including both amyloid plaques and tau-formed neurofibrillary
tangles. Our data suggest that miR-132 protects neurons against disease-related toxins such as Ab and
glutamate and that its replacement might be neuroprotective in the brain. Many genes associated with tau
metabolism, as well as those antagonizing neuronal apoptotic machinery, have been predicted as direct miR-
132 targets. Nevertheless, the molecular mechanism underlying the neuroprotective properties of miR-132, as
well as the genetic and physiologic context of its neuroprotection, is unknown. The overall goal of this project is
to dissect miR-132 signaling, define its role in AD and FTD neurons, and investigate neuroprotective properties
of this miRNA in human cells and mouse models of amyloid and tau-induced neurodegeneration. To achieve
this goal, we propose three Specific Aims. Specific Aim 1 will define the commonality and genetic constraints of
miR-132-mediated signaling and neuroprotection. Using neurons differentiated from a panel of iPSC lines from
controls, AD and FTD patients, we will unravel miR-132 signaling, its primary targets contributing to distinct
paths to neurodegeneration and disease, and define the links between miR-132 activity, tau and amyloid
pathology, and neuronal vulnerability and death. Specific Aim 2 will develop pre-clinical metabolically stabilized
compounds for the investigation of sustained miR-132 replacement in the brain in vivo. Specific Aim 3 will
investigate the mechanisms of miR-132 neuroprotection in two distinct mouse models of neurodegeneration.
The proposed project promises to yield significant new insights into the common pathways dysregulated in
Alzheimer’s disease and related pathologies and may validate miRNA as a novel class of neuroprotective
molecules for AD and FTD therapies.
项目概要/摘要
阿尔茨海默病(AD)和额颞叶痴呆(FTD)是最常见的神经退行性疾病
导致数百万患者罹患痴呆症的疾病以及受这些疾病影响的人数。
预计 20 年内,开发有效的新疗法所需的社会成本将增加一倍。
迫切需要生物医学方法、概念和分子靶标的发现。
称为 microRNA (miRNA) 的分子调节剂已经彻底改变了生物学,预计将产生重大影响
对医学的影响。miRNA、小型非蛋白质编码 RNA、转录后调控基因
越来越多的证据表明,在各种生理和病理条件下都有表达。
失调的 miRNA 信号在包括 AD 在内的多种神经退行性疾病中发挥着重要作用
和 FTD。一种特定的 miRNA,miR-132,以前与神经元发育、可塑性和活力有关,
最近已成为 AD 早期阶段以及 FTD 和
PSP。它与 AD 病理有关,包括淀粉样斑块和 tau 形成的神经原纤维。
我们的数据表明 miR-132 可以保护神经元免受疾病相关毒素的侵害,例如 Ab 和
谷氨酸,它的替代品可能对大脑有神经保护作用。许多基因与 tau 相关。
代谢以及那些拮抗神经元凋亡机制的物质,已被预测为直接 miR-
然而,miR-132 的神经保护特性的分子机制,如
以及其神经保护的遗传和生理背景尚不清楚该项目的总体目标。
剖析 miR-132 信号传导,定义其在 AD 和 FTD 神经元中的作用,并研究神经保护特性
该 miRNA 在淀粉样蛋白和 tau 诱导的神经变性的人类细胞和小鼠模型中实现。
为了这个目标,我们提出了三个具体目标。具体目标 1 将定义共性和遗传限制
miR-132 介导的信号传导和神经保护。使用从 iPSC 系中分化而来的神经元
对照、AD 和 FTD 患者,我们将解开 miR-132 信号传导,它的主要目标有助于不同的
神经退行性变和疾病的路径,并定义 miR-132 活性、tau 和淀粉样蛋白之间的联系
病理学、神经元脆弱性和死亡。具体目标 2 将开发临床前代谢稳定的药物
具体目标 3 将用于研究大脑中持续 miR-132 替代的化合物。
研究两种不同神经退行性疾病小鼠模型中 miR-132 神经保护的机制。
拟议的项目有望对常见的失调途径产生重要的新见解。
阿尔茨海默病和相关病理学,并可能验证 miRNA 作为一类新型神经保护剂
AD 和 FTD 治疗的分子。
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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Anna M. Krichevsky其他文献
Glioblastoma-Derived Extracellular Vesicles Facilitate Transformation of Astrocytes via Reprogramming Oncogenic Metabolism
胶质母细胞瘤衍生的细胞外囊泡通过重编程致癌代谢促进星形胶质细胞的转化
- DOI:
10.1016/j.isci.2020.101420 - 发表时间:
2020 - 期刊:
- 影响因子:5.8
- 作者:
Ailiang Zeng;Zhiyun Wei;Rosalia Rabinovsky;Hyun Jung Jun;Rachid El Fatimy;Evgeny Deforzh;Ramil Arora;Yizheng Yao;Shun Yao;Wei Yan;Erik J. Uhlmann;Alain Charest;Yongping You;Anna M. Krichevsky - 通讯作者:
Anna M. Krichevsky
Noncoding RNAs in the Brain
大脑中的非编码 RNA
- DOI:
10.1523/jneurosci.3624-07.2007 - 发表时间:
2007 - 期刊:
- 影响因子:0
- 作者:
J. Satterlee;S. Barbee;P. Jin;Anna M. Krichevsky;S. Salama;G. Schratt;Da - 通讯作者:
Da
A Model for Local Regulation of Translation Near Active Synapses
活动突触附近翻译的局部调节模型
- DOI:
10.1126/stke.3002005tr25 - 发表时间:
2005 - 期刊:
- 影响因子:0
- 作者:
K. Kosik;Anna M. Krichevsky - 通讯作者:
Anna M. Krichevsky
The Enkephalinergic Osteoblast
脑啡肽能成骨细胞
- DOI:
- 发表时间:
1998 - 期刊:
- 影响因子:6.2
- 作者:
H. Rosen;Anna M. Krichevsky;Z. Bar‐Shavit - 通讯作者:
Z. Bar‐Shavit
RNA Interference Technology: miRNAs in the brain and the application of RNAi to neurons
RNA干扰技术:大脑中的miRNA以及RNAi在神经元中的应用
- DOI:
- 发表时间:
2005 - 期刊:
- 影响因子:0
- 作者:
Anna M. Krichevsky;S. Kao;L. Tsai;K. Kosik - 通讯作者:
K. Kosik
Anna M. Krichevsky的其他文献
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{{ truncateString('Anna M. Krichevsky', 18)}}的其他基金
Epigenetics and 3D structure of miR-10b/HoxD locus in the brain and malignant glioma.
大脑和恶性胶质瘤中 miR-10b/HoxD 位点的表观遗传学和 3D 结构。
- 批准号:
10452679 - 财政年份:2020
- 资助金额:
$ 84.39万 - 项目类别:
Epigenetics and 3D structure of miR-10b/HoxD locus in the brain and malignant glioma.
大脑和恶性胶质瘤中 miR-10b/HoxD 位点的表观遗传学和 3D 结构。
- 批准号:
10255993 - 财政年份:2020
- 资助金额:
$ 84.39万 - 项目类别:
Developing miR-10b targeting for glioblastoma
开发针对胶质母细胞瘤的 miR-10b 靶向药物
- 批准号:
10353413 - 财政年份:2018
- 资助金额:
$ 84.39万 - 项目类别:
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