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RNA-seq of O4+ oligodendrocyte progenitors isolated from P5 and P60 mice

GSE263808 Mus musculus (mouse) RNA-seq (gene expression) 32 samples Submitted 2024/08/01 Platform GPL34760
At a glance

RNA-seq (gene expression) · mouse · 32 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
32 samples: 8 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
Histone H4 acetylation differentially modulates proliferation in adult oligodendrocyte progenitorsThe Journal of cell biology · 2024
Summary (written by the submitters)
Adult oligodendrocyte progenitors (aOPCs) share with their neonatal counterpart (nOPC) the ability to give rise to myelinating oligodendrocytes, but they also display unique functional features. This study addresses the molecular mechanisms underlying the intrinsic differences between these two populations. Using RNA-sequencing and unbiased histone proteomics analysis performed on PDGFRa+ OPCs sorted from a reporter mouse, we define the unique transcriptome and histone marks of aOPCs.
Read the full summary ↓
We describe the higher levels of genes related to lipid metabolism and myelin sheath, and lower expression of genes related to cycle and proliferation in aOPCs compared to nOPCs. We also identify greater levels of activating H4K8ac and repressive H4K20me3 histone marks in aOPCs compared to nOPCs, and increased occupancy of H4K8ac mark at chromatin locations corresponding to oligodendrocyte-specific genes. Pharmacological inhibition of histone acetylation in neonatal O4+OPCs (nO4+OPCs) and adult O4+OPCs (aO4+OPCs) followed by RNA-sequencing showed a moderate change in the transcriptome of these cells resulting in the decrease of proliferation capacity in aO4+OPCs but not nO4+OPCs. Pharmacological inhibition of H4K20me3 mark was not sufficient to change the transcriptome or functional properties of nO4+OPCs and aO4+OPC. Overall, this study identifies histone acetylation as key in regulating the proliferation of aO4+OPCs.
Published in
Histone H4 acetylation differentially modulates proliferation in adult oligodendrocyte progenitors
Dansu DK, Selcen I, Sauma S et al. · The Journal of cell biology 2024 · PMID 39133301 · doi:10.1083/jcb.202308064
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 GSE263808_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 PRJNA1099270 and SRA study SRP501307. Searching any of these in the dataset finder brings you back here.

Study design
8 conditions, mostly with about 5 replicates each
DMSO O4+ nOPC ×5 KATi O4+ nOPC ×5 SUV420i O4+ nOPC ×5 DMSO O4+ aOPC ×4 KATi O4+ aOPC ×4 SUV420i O4+ aOPC ×4 Untreated O4+ nOPC ×3 Untreated O4+ aOPC ×2

Supports a between-group comparison across 32 samples.

How we read this: 8 replicated groups read from 32 sample titles; they account for 32 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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