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Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE190188 | GEO | 2022/06/23

REPOSITORIES: GEO

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Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [populationAPOE]

Project description:The impact of Apolipoprotein E4 (APOE4), the strongest genetic risk factor for Alzheimer's disease (AD), on human brain cellular function remains unclear. Here we investigated the effects of APOE4 on brain cell types derived from population and isogenic human induced pluripotent stem cell models, post-mortem brain and APOE targeted replacement mice. Population and isogenic models uncover that APOE4 local haplotype rather than a single risk allele alone contributes to the risk. Global transcriptomic analyses reveal human specific, APOE4-driven lipid metabolic dysregulation in astrocytes and microglia. APOE4 leads to elevated de novo cholesterol synthesis despite the intracellular cholesterol accumulation due to lysosomal sequestration of cholesterol in astrocytes. Transcriptome analyses uncovered Matrisome dysregulation associated with upregulated chemotaxis, glial activation and lipid biosynthesis in astrocytes, co-cultured with neurons that recapitulates altered astrocyte matrisome signaling in human brain. Thus, APOE4 initiates glia-specific cell and non-cell autonomous dysregulation that may contribute to increased AD risk.

2022-06-23 | GSE190187 | GEO

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [mouseApoe]

2022-06-23 | GSE190186 | GEO

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [isogenicAPOE]

2022-06-23 | GSE190185 | GEO

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes

Project description:Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes

| PRJNA786227 | ENA

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [populationAPOE]

Project description:Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [populationAPOE]

| PRJNA786229 | ENA

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [mouseApoe]

Project description:Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [mouseApoe]

| PRJNA786226 | ENA

Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [isogenicAPOE]

Project description:Cholesterol and matrisome pathways dysregulated in APOE ε4 human microglia and astrocytes [isogenicAPOE]

| PRJNA786225 | ENA

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Project description:This SuperSeries is composed of the SubSeries listed below.

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Project description:This SuperSeries is composed of the SubSeries listed below.

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