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Mechanisms of White Matter Repair in Subcortical White Matter Ischemia

皮质下白质缺血的白质修复机制

基本信息

批准号：
9900882
负责人：
Stanley Thomas Carmichael
金额：
$ 39万
依托单位：
UNIVERSITY OF CALIFORNIA LOS ANGELES
依托单位国家：
美国
项目类别：
财政年份：
2018
资助国家：
美国
起止时间：
2018-04-01 至 2022-03-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9900882
关键词：
Age Alzheimer&apos s disease pathology Behavioral Bioinformatics Biological Markers Blood - brain barrier anatomy Brain Brain region Calcium Candidate Disease Gene Cell physiology Cerebrum Data Dementia Diffuse Diffusion Disease Focal Neurologic Deficits Gene Expression Profiling Genes Goals Grant Human Image In Vitro Inflammatory Ischemia Label Magnetic Resonance Imaging Mediating Modeling Molecular Molecular Target Multiple Sclerosis Mus Neurons Outcome Pathology Pre-Clinical Model Process Proliferating Public Health Recovery Reporter Rest Role Sensory Stroke Structure System Technology Testing Transgenic Organisms Vascular Diseases Viral White Matter Disease White Matter Hyperintensity Work age effect aged base hypoperfusion imaging biomarker in vivo innovation loss of function motor impairment mouse model new therapeutic target novel oligodendrocyte precursor optogenetics preclinical study precursor cell regenerative relating to nervous system repaired response white matter white matter injury

项目摘要

Project Summary/Abstract White matter ischemia is a progressive vascular disease that leads to focal neurological deficits, accumulates to cause dementia, and accelerates the pathology of Alzheimer's Disease. The term white matter ischemia or white matter hyperintensity, based on imaging, corresponds to several disease pathologies, including progressive blood brain barrier breakdown, small focal strokes and end-arterial hypoperfusion. White matter ischemia is strongly age-associated: at age 80 all of us will have white matter hyperintensities on MRI. Despite substantial pre-clinical study of mechanisms of white matter repair in inflammatory white matter disease (such as multiple sclerosis), there is little information on how cerebral white matter responds to white matter ischemia, and may initiate neural repair. This grant utilizes a model of white matter ischemia in the mouse, which produces diffuse and progressive damage from the small vessels in the subcortical white matter, to determine the mechanisms of white matter repair. The studies characterize candidate molecular systems that mediate this process and identify neuronal network function in white matter ischemia and during repair and recovery. The studies will determine the effects of age on these processes. This grant will use an innovative platform of technologies, including a newly developed mouse model, transgenic cellular fate-mapping, optogenetic and resting state MRI studies, and viral gain and loss of function approaches. The outcome of this work will be to identify novel molecular targets for neural repair in white matter ischemia, develop an understanding of the neuronal network function that leads to behavioral deficits in this disease, and develop an imaging biomarker for repair and recovery in white matter ischemia.

项目总结/文摘