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Nociceptor neurons direct fibroblasts via a PACAP-VIPR2 axis to drive IL-11 production and colon healing

GSE302394 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2025/07/16 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: 3 × Sorted fibroblast from wild-typre mice,Vehicle, vs 3 × Sorted fibroblast from wild-typre mice,PACAP, vs 3 × Sorted fibroblast from Vipr2-KO mice,Vehicle, vs 3 × Sorted fibroblast from Vipr2-KO mice,PACAP,Groups 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)
Mucosal healing remains a pivotal therapeutic endpoint in ulcerative colitis (UC) management, yet cellular mechanisms driving tissue repair remain elusive. Here we demonstrate that Pirt+ nociceptor endings dynamically grow into the granulation tissue during colonic mucosal restitution, releasing pituitary adenylate cyclase-activating polypeptide (PACAP) to orchestrate reparative processes.
Read the full summary ↓
Absence of PACAP signaling in Pirt+ sensory neurons resulted in delayed healing, while exogenous PACAP administration accelerated mucosal restitution in experimental colitis models. Mechanistically, PACAP exerts its pro-reparative effects through vasoactive intestinal peptide receptor 2 (VIPR2), with pituitary adenylate cyclase-activating polypeptide receptor type 1 and vasoactive intestinal peptide receptor 1 playing negligible roles in this context. Mouse and human fibroblast expressed VIPR2. VIPR2+ fibroblasts increased during mucosal healing and accumulated in granulation tissue. Conditional deletion of VIPR2 in fibroblasts abolished PACAP-mediated tissue repair. The effects of PACAP on mucosal healing are mediated via interleukin-11 released by VIPR2+ fibroblast. Our findings demonstrate a neuron-fibroblast axis that orchestrates mucosal healing, highlighting its therapeutic potential as a novel target for UC management.
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 GSE302394_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 PRJNA1290321 and SRA study SRP600142. Searching any of these in the dataset finder brings you back here.

Study design
3 × Sorted fibroblast from wild-typre mice,Vehicle, vs 3 × Sorted fibroblast from wild-typre mice,PACAP, vs 3 × Sorted fibroblast from Vipr2-KO mice,Vehicle, vs 3 × Sorted fibroblast from Vipr2-KO mice,PACAP,

Supports a between-group comparison across 12 samples.

How we read this: 4 replicated groups read from 12 sample titles; they account for 12 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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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.