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Integrin β3 Deficiency Unleashes Spontaneous Pulmonary Inflammation by Promoting B Cell Hyperactivation via the CD40-CD40L Axis

GSE317568 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2026/04/15 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 12 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
12 samples
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
Integrin β3 deficiency unleashes spontaneous pulmonary inflammation by promoting B cell hyperactivation via the CD40-CD40L axisFrontiers in immunology · 2026
Summary (written by the submitters)
Background: Pulmonary immune homeostasis relies on stringent control of adaptive immunity. Integrin β3 is a critical mediator of cellular adhesion and platelet function. However, its specific role in modulating adaptive immunity, particularly B cell immune response, remains poorly understood.Results: We identified that β3⁻/⁻ mice showed a spontaneous pulmonary inflammation characterized by B cell activation and in situ immune complex deposition in alveoli.
Read the full summary ↓
Multi-omics integration identified that the CD40-CD40 Ligand (CD40L) axis was strongly implicated in this pathology process. Mechanistically, the absence of β3 potentiates CD40L-CD40 engagement on B cells, leading to hyperactivation of the NF-κB pathway. Notably, reduced ITGB3 expression in patients with autoimmune disease correlated significantly with enhanced transcriptional signatures of B cell activation and inflammation.Methods: Histopathology characterized the pulmonary phenotype of constitutive β3-deficient (β3⁻/⁻) mice. Integrated transcriptomic and proteomic profiling of lung tissue was then performed to map the molecular landscape of spontaneous pulmonary inflammation. Related mechanisms were investigated by histopathology and functional assays, and established clinical relevance by analyzing transcriptomic datasets from patients with autoimmune diseases.Conclusions: Our findings redefine integrin β3 as a threshold regulator of the B cell activation. Consequently, the β3-CD40L-CD40 axis represents a promising therapeutic target for managing B cell-related autoimmune diseases.
Published in
Integrin β3 deficiency unleashes spontaneous pulmonary inflammation by promoting B cell hyperactivation via the CD40-CD40L axis
Liu S, Wang K, Chen J et al. · Frontiers in immunology 2026 · PMID 41953039 · doi:10.3389/fimmu.2026.1796926
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 GSE317568_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 PRJNA1414488 and SRA study SRP666451. Searching any of these in the dataset finder brings you back here.

Samples in this study

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

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