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Tissue-type plasminogen activator expression is required for proper CNS myelination

GSE305259 Mus musculus (mouse) RNA-seq (gene expression) 15 samples Submitted 2025/11/14 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 15 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
15 samples: 5 conditions, mostly in triplicateGroups 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
Tissue-type plasminogen activator expression by endothelial cells and oligodendrocytes is required for proper CNS myelinationActa neuropathologica communications · 2025
Summary (written by the submitters)
Oligodendrocytes form myelin sheaths, a process regulated by intrinsic and extrinsic signals. Endothelial derived-tissue-type plasminogen activator (tPA) has been previously recognized for its role in aiding oligodendrocyte migration during (re)myelination. Moreover, it is well established that oligodendrocytes express de novo tPA following myelin damage, possibly reflecting the initiation of a regenerative program.
Read the full summary ↓
However, its role in differentiation and myelination has remained unclear. This study aims to uncover the role of endothelial- and oligodendrocytes-derived tPA in developmental myelination. It appears that tPA is transiently expressed in myelinating oligodendrocytes in mice and humans. tPA deficiency delays oligodendrocyte maturation and causes persistent myelin defects, leading to motor impairments. Endothelial-derived tPA promotes myelin compaction, while oligodendrocyte-derived tPA supports myelin growth. These findings, along with previous research, highlight shared molecular mechanisms between developmental myelination and remyelination. Moreover, we highlight tPA’s dual roles in myelination and as a therapeutic target for dysmyelinating diseases.
Published in
Tissue-type plasminogen activator expression by endothelial cells and oligodendrocytes is required for proper CNS myelination
Delaunay-Piednoir B, Pouettre E, Etard O et al. · Acta neuropathologica communications 2025 · PMID 40993817 · doi:10.1186/s40478-025-02110-z
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 GSE305259_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 PRJNA1304947 and SRA study SRP608424. Searching any of these in the dataset finder brings you back here.

Study design
5 conditions, mostly in triplicate
Spinal cord, P3, ×3 Spinal cord, P15, ×3 Spinal cord, P60, ×3 Spinal cord, P15, CNP WT, ×3 Spinal cord, P15, CNP KO, ×3

Supports a between-group comparison across 15 samples.

How we read this: 5 replicated groups read from 15 sample titles; they account for 15 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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