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APOE genotype modifies the gene signature of microglial and astrocytic responses to aging

GSE285471 Mus musculus Expression profiling by high throughput sequencing 24 samples Submitted 2026/08/08 Platform GPL21103
Summary
To determine how APOE genotypes impact the gene signature of microglia and astrocytes during aging at single cell level, we isolated brain cells from young (3 month of age) and aged (24 month of age) APOE2 and APOE3 and APOE4 mice, and conducted single cell RNA sequencing (scRNAseq) (4 mice/age/genotype). We annotated all the cells based on their gene markers and then focused on microglia and astrocytes for further downstream analysis. We functionally annotated each subcluster with microglia and astrocytes, based on the expression pattern of the widely accepted typical maker genes from multiple publications. Further, we identified the differentially expressed genes (DEG) in the comparison between young and aged mice for each subcluster in each APOE genotype and characterized the pathways related to these DEGs. Taken together, our dataset provided comprehensive resources to understand the APOE-regulated microglial and astrocytic responses to aging.
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Direct links to NCBI, no account and no request form: the whole study as GSE285471_RAW.tar, processed values as the series matrix, the supplementary file directory, and per-sample supplementary files for any of the 24 samples. Raw sequencing reads are also available from ENA.

Also filed as BioProject PRJNA1203890 and SRA study SRP554196. Searching any of these in the dataset finder brings you back here.

Study design
12 conditions, mostly in duplicate
APOE2, Male, 3M, # ×2 APOE3, Male, 3M, # ×2 APOE4, Male, 3M, # ×2 APOE2, Male, 24M, # ×2 APOE3, Male, 24M, # ×2 APOE4, Male, 24M, # ×2 APOE2, Female, 3M, # ×2 APOE3, Female, 3M, # ×2 +4 more

Supports a between-group comparison across 24 samples.

12 replicated groups read from 24 sample titles; they account for 24 of them. Check it against the sample list below before relying on it.

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