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The Effector Differentiation of TCRαβ+CD8αα+ Intraepithelial Lymphocytes Is Reciprocally Regulated by BCL6 and BLIMP1

GSE317864 Mus musculus (mouse) RNA-seq (gene expression) 20 samples Submitted 2026/02/12 Platform GPL24247Platform GPL23479
At a glance

RNA-seq (gene expression) · mouse · 20 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
20 samples: 9 conditions, mostly in duplicateGroups 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.
Paper
The effector differentiation of TCRαβ(+)CD8αα(+) intraepithelial lymphocytes is reciprocally regulated by BCL6 and BLIMP1Cell reports · 2026
Summary (written by the submitters)
CD8αα+TCRαβ+ intraepithelial lymphocytes (IELs) play crucial roles in maintaining intestinal homeostasis and host protection. However, the functional regulation of these cells remains unclear. Here, we have discovered and characterized two distinct developmental stages within intestinal CD8αα+ αβ IELs: a stem-like, defined by BCL6, TCF1 and CD160 expression, and an effector-like, with Granzyme B expression and Prdm1 transcription, by sorting and transcriptional sequencing BCL6+CD160+ CD8αα+ αβ IELs and BCL6-CD160- CD8αα+ αβ IELs.
Read the full summary ↓
Comparing transcriptional profiles of total CD8αα+ αβ IELs from BCL6-deficient, BLIMP1-deficient and TCF1-deficient mice compared with that from their WT littermate control mice, we found a critical antagonistic function between BCL6/TCF1 and BLIMP1 in governing the fate decisions of CD8αα+ αβ IEL subsets.
Published in
The effector differentiation of TCRαβ(+)CD8αα(+) intraepithelial lymphocytes is reciprocally regulated by BCL6 and BLIMP1
Xing Q, Xie S, Ma J et al. · Cell reports 2026 · PMID 41865368 · doi:10.1016/j.celrep.2026.117095
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 GSE317864_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 PRJNA1415732 and SRA study SRP668846. Searching any of these in the dataset finder brings you back here.

Study design
9 conditions, mostly in duplicate
SI_RFP_P ×3 SI_RFP_N ×3 LI ×2 Bcl6_WT ×2 Bcl6_KO ×2 Prdm1_WT ×2 Prdm1_KO ×2 TCF1_WT ×2 +1 more

Supports a between-group comparison across 20 samples.

How we read this: 9 replicated groups read from 20 sample titles; they account for 20 of them. 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
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