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Aberrant splicing exonizes C9ORF72 repeat expansion in ALS/FTD

GSE247790 Homo sapiens (human) RNA-seq (gene expression) 18 samples Submitted 2025/08/11 Platform GPL24676
At a glance

RNA-seq (gene expression) · human · 18 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
Homo sapiens (human)
Samples
18 samples: 8 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
Aberrant splicing exonizes C9orf72 repeat expansion in ALS/FTDNature neuroscience · 2025
Summary (written by the submitters)
A nucleotide repeat expansion (NRE) in the first annotated intron of the C9ORF72 gene is the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). While C9 NRE-containing RNAs can be translated into several toxic dipeptide repeat proteins, how an intronic NRE can access the translation machinery in the cytoplasm remains unclear.
Read the full summary ↓
By capturing and sequencing NRE-containing RNAs from patient-derived cells, we found that C9 NRE was exonized by the usage of downstream 5ʹ splice sites and exported from the nucleus in a variety of spliced mRNA isoforms. C9ORF72 aberrant splicing was substantially elevated in both C9 NRE+ motor neurons and human brain tissues. Furthermore, NREs above the pathological threshold were sufficient to activate cryptic splice sites in reporter mRNAs. In summary, our results revealed a crucial and potentially widespread role of repeat-induced aberrant splicing in the biogenesis, localization, and translation of NRE-containing RNAs.
Published in
Aberrant splicing exonizes C9orf72 repeat expansion in ALS/FTD
Yang S, Wijegunawardana D, Sheth U et al. · Nature neuroscience 2025 · PMID 40790269 · doi:10.1038/s41593-025-02039-5
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 GSE247790_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 PRJNA1040326 and SRA study SRP471909. Searching any of these in the dataset finder brings you back here.

Study design
8 conditions, mostly in duplicate
patient-derived fibroblasts, C9 NRE- nuclear … ×2 patient-derived fibroblasts, C9 NRE- nuclear … ×2 patient-derived fibroblasts, C9 NRE- cytoplas… ×2 patient-derived fibroblasts, C9 NRE- cytoplas… ×2 patient-derived fibroblasts, C9 NRE+ nuclear … ×2 patient-derived fibroblasts, C9 NRE+ nuclear … ×2 patient-derived fibroblasts, C9 NRE+ cytoplas… ×2 patient-derived fibroblasts, C9 NRE+ cytoplas… ×2 +2 more

Supports a between-group comparison across 16 samples.

How we read this: 8 replicated groups read from 18 sample titles; they account for 16 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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