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ApoE4-Induced Cholesterol Dysregulation and Its Brain Cell Type-Specific Implications in the Pathogenesis of Alzheimer's Disease
- ApoE4-Induced Cholesterol Dysregulation and Its Brain Cell Type-Specific Implications in the Pathogenesis of Alzheimer's Disease
- Jeong, Woojin; Lee, Hyein; Cho, Sukhee; Seo, Jinsoo
- DGIST Authors
- Seo, Jinsoo
- Issue Date
- Molecules and Cells, 42(11), 739-746
- Article Type
- Author Keywords
- A beta; Alzheimer' s disease; ApoE4; apolipoprotein; cholesterol
- MICROGLIA-LIKE CELLS; APOLIPOPROTEIN-E; MOUSE MODEL; IN-VITRO; A-BETA; NEURONS; RISK; HYPERCHOLESTEROLEMIA; NEURODEGENERATION; METABOLISM
- Significant knowledge about the pathophysiology of Alzheimer's disease (AD) has been gained in the last century; however, the understanding of its causes of onset remains limited. Late-onset AD is observed in about 95% of patients, and APOE4-encoding apolipoprotein E4 (ApoE4) is strongly associated with these cases. As an apolipoprotein, the function of ApoE in brain cholesterol transport has been extensively studied and widely appreciated. Development of new technologies such as human-induced pluripotent stem cells (hiPSCs) and CRISPR-Cas9 genome editing tools have enabled us to develop human brain model systems in vitro and readily manipulate genomic information. In the context of these advances, recent studies provide strong evidence that abnormal cholesterol metabolism by ApoE4 could be linked to AD-associated pathology. In this review, we discuss novel discoveries in brain cholesterol dysregulation by ApoE4. We further elaborate cell type-specific roles in cholesterol regulation of four major brain cell types, neurons, astrocytes, microglia, and oligodendrocytes, and how its dysregulation can be linked to AD pathology.
- Related Researcher
Laboratory of Aging Brain
iPSC; Alzheimer's disease; Neurodegeneration; Synapse; Neuroscience
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- Department of Brain and Cognitive SciencesLaboratory of Aging Brain1. Journal Articles
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