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A Bcl11a-driven mechanism maintaining hematopoietic stem cell functionality gives rise to dysfunction during aging [RNA-Seq]

GSE266509 Mus musculus (mouse) RNA-seq (gene expression) 52 samples Submitted 2026/05/17 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 52 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Mus musculus (mouse)
Samples
52 samples: 47 distinct titles, 3 of them repeatedGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Summary (written by the submitters)
Preserving hematopoietic stem cell (HSC) functionality is crucial for sustaining healthy blood and immune system throughout life. However, the mechanisms underlying HSC dysfunction and disruption of hematopoiesis during aging remain unclear. Utilizing an inducible mosaic mouse model, we discovered that Bcl11a levels increase in HSCs with age, mitigating functional decline while also promoting myeloid cell and IL-1β production in the bone marrow, thus accelerating HSC attrition non-cell autonomously.
Read the full summary ↓
Notably, aging-related inflammation augments the expressions of both Bcl11a and Fc receptors (FcRs) in HSCs. FcR signaling activation induces HSC differentiation, which is counteracted by Bcl11a through repressing FcRγ expression to maintain HSC function. Deletion of FcRγ in Bcl11a-mosaic mice abolishes the non-cell autonomous effect on deteriorating HSCs. Overall, this study unveils the complex nature of HSC aging and underscores the significance of fine-tuning Bcl11a levels and FcRγ signaling strength for hematopoietic regeneration on demand and healthy blood production with age.
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE266509_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1107481 and SRA study SRP505623. Searching any of these in the dataset finder brings you back here.

Study design
47 distinct titles, 3 of them repeated
C57_Il1b_Day20 ×3 C57_PBS_Day20 ×3 Fcer1gKO_Il1b_Day20 ×2

How we read this: Read from 52 sample titles: 47 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study

+ 12 more — browse all 52 samples with per-sample file links →

Datasets on a similar topic

Search all mouse RNA-seq datasets in GEO →

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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.