Genetic modulators of 3-NP neurotoxicity
3-NP神经毒性的遗传调节剂
基本信息
- 批准号:9370237
- 负责人:
- 金额:$ 22.8万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-08-15 至 2019-07-31
- 项目状态:已结题
- 来源:
- 关键词:3-nitropropionic acidAlzheimer&aposs DiseaseAmyotrophic Lateral SclerosisAnimal ModelApplications GrantsAreaBehavioral ResearchBioenergeticsBiomedical ResearchCandidate Disease GeneCell modelClinicalClinical ResearchComplexConsumptionCorpus striatum structureDataDevelopmentDiseaseEnvironmental Risk FactorExhibitsExposure toFood ContaminationFunctional disorderGenerationsGeneticGrantHealthHeritabilityHumanHuntington DiseaseImpairmentInbreedingIndividualIndustrial fungicideIntraperitoneal InjectionsLeadLesionLightLivestockMachado-Joseph DiseaseMapsMethodologyMitochondriaMitochondrial DiseasesModelingMouse StrainsMultiple System AtrophyMusNeurodegenerative DisordersNeuronal InjuryNeurotoxinsOccupational ExposureParkinson DiseasePathologicPathway interactionsPhenotypePlayPredispositionPreventionProcessPublicationsRecombinantsResearchResistanceRespiratory ChainRiskRoleSuccinate DehydrogenaseTechniquesTherapeuticTherapeutic InterventionTreatment EfficacyWorkaging braingenetic varianthigh rewardhigh riskinhibitor/antagonistinsightmitochondrial dysfunctionmolecular targeted therapiesneuron lossneuroprotectionneurotoxicitynew therapeutic targetnovelnovel therapeutic interventionplant fungipolyglutamineresistant straintrait
项目摘要
3-nitropropionic acid (3-NP) is a well-documented naturally occurring potent neurotoxin produced by certain
plants and fungi causing livestock as well as human poisonings. 3-NP irreversibly inhibits succinate
dehydrogenase (SDH), the main constituent of the mitochondrial respiratory chain complex II, leading to
impaired mitochondrial bioenergetics and neuronal cell death, predominantly in the striatum. In recent years, a
new generation of fungicides that act via inhibition of mitochondria complex II succinate dehydrogenase has
been introduced into the markets. Although occupational exposure or general consumption of either livestock,
raw produce, or processed food contaminated with inhibitors of SDH may not pose a serious health risk to
healthy individuals, even low amounts might influence the clinical and pathological manifestation in individuals
already predisposed to neurodegenerative diseases where mitochondrial function is compromised.
Mitochondrial dysfunction occurs in the aging brain as well as in a number of neurodegenerative disorders,
including the alpha-synucleopathies Multiple System Atrophy and Parkinson’s Disease, the polyglutamine
disorders Huntington’s Disease and Machado-Joseph Disease, Amyotrophic Lateral Sclerosis, and Alzheimer’s
Disease. Both environmental factors and genetic modifiers are thought to play essential roles in these and
other neurodegenerative disorders. The long-term objective of this work is to identify genetic modifiers of 3-NP
neurotoxicity using inbred BXD mice for the mapping of loci that contribute to susceptibility or resistance to 3-
NP-induced neuronal cell death. Our preliminary data indicate that the parental strain C57BL/6J is susceptible
whereas DBA/2J is resistant to 3-NP-induced neuronal injury, justifying the use of BXDs for our purposes.
Identifying genetic pathways that provide neuroprotection to 3-NP will be invaluable for uncovering potential
genetic modulators of 3-NP neurotoxicity, shedding light on mechanisms of susceptibility associated with
exposure to this neurotoxin. In addition, our findings will provide further understanding of the disease
processes in neurodegenerative disorders associated with mitochondria dysfunction, and lead to new lines of
research on prevention and therapeutics.
3-硝基丙酸(3-NP)是一种有很好文献记载的药物,它自然会产生一种由某些人产生的强大的神经毒素。
植物和真菌正在造成动物死亡和人类健康中毒。3-NP不可逆转地抑制琥珀酸。
脱氢酶(SDH)是线粒体呼吸控制链和复合体II的主要组成成分,它导致细胞死亡。
线粒体和生物能量学受损,神经细胞死亡,主要发生在纹状体。近年来,
新一代杀菌剂可以通过抑制线粒体和脱氢酶复合体II琥珀酸脱氢酶发挥作用。
他们被引入美国市场。尽管职业风险暴露或一般消费风险,无论是牲畜,还是动物,都有。
原料、农产品或加工食品或受SDH酶抑制剂污染的食品可能不会对消费者构成严重的健康风险。
健康的人,即使是低剂量的人,也可能会影响他们的临床表现和病理变化。
已经有易患神经退行性疾病的人,线粒体功能也受到损害。
线粒体功能障碍主要发生在老年人的大脑老化中,以及许多常见的神经退行性疾病中。
包括常见的α-突触核病、多发性神经系统萎缩和帕金森氏症,以及最常见的聚谷氨酰胺。
亨廷顿氏综合症和马查多-约瑟夫氏病,肌萎缩侧索硬化症,以及阿尔茨海默氏症。
疾病、环境因素和遗传修饰因子都被认为在这些疾病和疾病中发挥着至关重要的作用。
其他常见的神经退行性疾病。这项工作的长期和客观目标是进一步确定3-NP的基因修饰因子。
神经毒性:使用近亲交配的BXD小鼠有助于改变基因座的遗传图谱,这些基因座可能导致易感性增加或耐药性增加。
NP诱导神经细胞死亡。我们的初步研究数据表明,亲本菌株C57BL/6J是易感的。
鉴于DBA/2J对3-NP诱导的神经细胞损伤没有抵抗力,因此有理由出于我们的安全目的而广泛使用BXD。
找出可以为3-NP提供更多神经保护信息的遗传途径,对于发现其潜力来说,将是非常宝贵的信息。
3-NP的遗传基因调节剂具有神经毒性,揭示了与此相关的易感性的机制。
暴露于这种新的神经毒素。此外,我们的研究结果也将为我们提供对这种疾病的进一步了解。
神经退行性疾病的过程与线粒体功能障碍有关,这些过程导致了许多新的疾病。
研究重点是癌症预防和治疗。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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IOANNIS DRAGATSIS其他文献
IOANNIS DRAGATSIS的其他文献
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{{ truncateString('IOANNIS DRAGATSIS', 18)}}的其他基金
Genetic restoration of IKAP as a tool to study Familial Dysautonomia
IKAP 的遗传恢复作为研究家族自主神经功能障碍的工具
- 批准号:
9804600 - 财政年份:2019
- 资助金额:
$ 22.8万 - 项目类别:
Generation of a mouse model for Progressive Supranuclear Palsy
进行性核上性麻痹小鼠模型的生成
- 批准号:
8259429 - 财政年份:2011
- 资助金额:
$ 22.8万 - 项目类别:
Generation of a mouse model for Progressive Supranuclear Palsy
进行性核上性麻痹小鼠模型的生成
- 批准号:
8189541 - 财政年份:2011
- 资助金额:
$ 22.8万 - 项目类别:
Generation of a mouse model for Familial Dysautonomia.
家族性自主神经功能障碍小鼠模型的生成。
- 批准号:
6979728 - 财政年份:2005
- 资助金额:
$ 22.8万 - 项目类别:
Generation of a mouse model for Familial Dysautonomia.
家族性自主神经功能障碍小鼠模型的生成。
- 批准号:
7069136 - 财政年份:2005
- 资助金额:
$ 22.8万 - 项目类别:














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