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Molecular Mechanism of Neuronal Damage in Demyelinating Disorders

脱髓鞘疾病神经元损伤的分子机制

基本信息

批准号：
8231373
负责人：
Patrizia Casaccia
金额：
$ 37.34万
依托单位：
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
依托单位国家：
美国
项目类别：
财政年份：
2011
资助国家：
美国
起止时间：
2011-04-01 至 2015-03-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8231373
关键词：
Acetylation Acute Address Amino Acids Area Axon Axonal Transport Binding Brain Calcium Cells Clinical Collaborations Cuprizone Cytosol Deacetylation Demyelinating Diseases Demyelinations Detection Disease Early Diagnosis Enzymes Event Family member Fiber Glutamates Grant HDAC1 gene Hippocampus (Brain)Histone Deacetylase Histones Impairment In Vitro Knock-in Mouse Knowledge Laboratories Lead Mitochondria Modification Molecular Movement Multiple Sclerosis Mus Mutation Nerve Degeneration Neurites Neurodegenerative Disorders Neurons Nuclear Nuclear Export Nuclear Receptors Oxidative Stress Pathway interactions Patients Phosphorylation Point Mutation Post-Translational Protein Processing Property Protein Isoforms Proteins Recycling Reporting Role Signal Transduction Slice Specificity Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization Stimulus Swelling Synaptic Vesicles TNF gene Testing Therapeutic Toxic effect Transgenic Model Transport Vesicles Ubiquitination axonopathy base cell type disability immunoreactivity in vivo in vivo Model inhibitor/antagonist mutant nervous system disorder new therapeutic target novel prevent protective effect public health relevance repaired research study response young adult

项目摘要

DESCRIPTION (provided by applicant): Axonal damage is cause of major clinical disability in a wide range of neurological disorders, including multiple sclerosis (MS). Although considerable progress has been made in the detection of the early signs of axonal damage, still very little is known about the potential causative factors and the related signaling events. Thus, therapeutic approaches aimed at preventing or repairing damaged axons are not yet available. Our laboratory has recently reported the involvement of cytoplasmic HDAC1 in the impairment of mitochondrial transport and the onset of axonal swellings. This experimental plan proposes to characterize this novel intracellular signaling mechanism and use in vitro and in vivo models to characterize the role of specific isoforms of histone deacetylases in axonal damage in demyelinating disorders. PUBLIC HEALTH RELEVANCE: Axonal damage is cause of major clinical disability in a wide range of neurological disorders, including multiple sclerosis. Although considerable progress has been made in the detection of axonal damage in demyelinating disorders still very little is known about the underlying signaling events and this is the major focus of this grant. The results of the proposed experimental plan are expected to enhance our current state of knowledge on axonal damage and lead to the identification of potential novel therapeutic targets for multiple sclerosis and other disorders characterized by axonopathy.

描述（由申请人提供）：轴突损伤是多种神经系统疾病（包括多发性硬化症（MS））的主要临床残疾原因。虽然在轴突损伤的早期信号检测方面已经取得了相当大的进展，但对潜在的致病因素和相关的信号事件仍然知之甚少。因此，旨在预防或修复受损轴突的治疗方法尚不可用。我们的实验室最近报道了细胞质HDAC1参与线粒体转运的损伤和轴突损伤的发生。该实验计划提出了表征这种新的细胞内信号传导机制，并使用体外和体内模型来表征组蛋白脱乙酰酶的特定亚型在脱髓鞘疾病中轴突损伤中的作用。公共卫生相关性：轴突损伤是多种神经系统疾病（包括多发性硬化症）的主要临床残疾原因。虽然在脱髓鞘疾病中轴突损伤的检测方面已经取得了相当大的进展，但对潜在的信号传导事件仍然知之甚少，这是该基金的主要重点。拟议实验计划的结果预计将增强我们目前对轴突损伤的了解，并导致确定多发性硬化症和其他以轴突病为特征的疾病的潜在新治疗靶点。