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A unique genetic signature for cancer-associated fibroblasts in Melanoma metastases

GSE254072 Mus musculus (mouse) Single-cell RNA-seq 21 samples Submitted 2025/01/01 Platform GPL24247
At a glance

Single-cell RNA-seq · mouse · 21 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart. Read from the summary: GEO's own type field only says 'expression profiling by sequencing', so confirm it in the paper.
Organism
Mus musculus (mouse)
Samples
21 samples: 5 conditions, mostly with about 5 replicates eachGroups 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
A Unique Signature for Cancer-Associated Fibroblasts in Melanoma MetastasesPigment cell & melanoma research · 2025
Summary (written by the submitters)
Cancer-associated fibroblasts (CAFs) represent a central population of the tumor microenvironment (TME). Recently, single-cell RNA sequencing (scRNA-seq) analyes of primary tumors of different cancer entities yielded different classifications of CAF subsets underscoring heterogeneity of CAFs within the TME. Here, we analyzed the transcriptional signatures of approximately 8,400 CAFs and normal fibroblasts by scRNA-seq and compared genetic profiles of CAFs from murine melanoma primary tumors to CAFs from corresponding melanoma lung metastases.
Read the full summary ↓
This revealed distinct subsets for primary tumor and metastasis specific CAF populations, respectively. Combined with spatial characterization of metastasis CAFs at the RNA and protein level, scRNA-analyses indicate a tumor-dependent crosstalk between neutrophils and CAFs, mediated via SAA3 and IL1b related signaling pathways, which can be recapitulated in vitro. Importantly, analyzing tissue sections of human patient samples this link was found to be present in human melanoma metastasis. Taken together, our data highlights unique characteristics of metastasis CAFs with potential therapeutic impact for melanoma metastasis.
Published in
A Unique Signature for Cancer-Associated Fibroblasts in Melanoma Metastases
Tauch S, Hey J, Kast B et al. · Pigment cell & melanoma research 2025 · PMID 39924882 · doi:10.1111/pcmr.70002
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 GSE254072_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: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA1065791 and SRA study SRP484452. Searching any of these in the dataset finder brings you back here.

Study design
5 conditions, mostly with about 5 replicates each
metastasis, TME, ×5 primary tumor, TME, ×5 lung, unchallenged, ×4 metastasis, MM, ×3 primary tumor, MM, ×2 metastasis, TME, rep1 ×1 primary tumor, TME, rep1 ×1

Supports a between-group comparison across 19 samples.

How we read this: 5 replicated groups read from 21 sample titles; they account for 19 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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