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Status Epilepticus Alters the Function of Brain-Derived Extracellular Vesicles [N2A-RNA-Seq]

GSE327585 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2026/06/18 Platform GPL34328
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: 4 × SE-BDEV-Treated vs 4 × CON-BDEV-Treated vs 4 × Vehicle-TreatedGroups 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
Status Epilepticus Alters the Function of Brain-Derived Extracellular VesiclesJournal of extracellular vesicles · 2026
Summary (written by the submitters)
Epilepsy is a neurological disorder characterised by recurrent spontaneous seizures. Approximately 30% of patients are unable to achieve adequate seizure control with available medications, highlighting the need to better understand disease mechanisms and develop improved treatments. Mesial temporal lobe epilepsy (MTLE) is a common subtype of treatment-resistant epilepsy.
Read the full summary ↓
Patients with MTLE often have experienced a prior neurological insult, such as a traumatic brain injury, or status epilepticus (SE), that is believed to contribute to epileptogenic changes that lead to MTLE. However, the molecular mechanisms underlying epileptogenesis remain incompletely understood. Extracellular vesicles (EVs) are small membrane-bound particles released by cells that are important for intercellular communication. Recent studies identified altered microRNA (miRNA) content in brain-derived EVs (BDEVs) in models of MTLE, but whether BDEV function is altered has not been explored. Using the pilocarpine mouse model of MTLE, we examined the effects of SE on the function and miRNA cargo of hippocampal BDEVs during the epileptogenic period. BDEVs were isolated from hippocampi of control and pilocarpine-treated mice 24 h after SE. To assess functional changes, we compared gene expression in N2a neuronal-like cells and BV2 microglial-like cells exposed to control BDEVs (CON-BDEVs) or BDEVs collected after SE (SE-BDEVs). SE-BDEVs induced distinct transcriptional changes in N2a cells including alterations in the expression of genes related to TGF-β signalling, amino acid regulation of mTORC1 and neurotransmitter signalling. In BV2 cells, SE-BDEVs increased the expression of genes associated with inflammatory cytokine release. Analysis of BDEV miRNA content revealed multiple differentially expressed miRNAs between SE- and CON-BDEVs, with predicted targets overlapping with genes uniquely altered by SE-BDEVs. Notably, SE-induced miRNA changes were still observed 10 days post-SE, indicating sustained modulation of BDEV cargo. These findings identify SE-induced alterations in both the function and miRNA composition of hippocampal BDEVs, suggesting that BDEVs may contribute to epileptogenesis in MTLE.
Published in
Status Epilepticus Alters the Function of Brain-Derived Extracellular Vesicles
Reed SL, Wang Y, Li Y et al. · Journal of extracellular vesicles 2026 · PMID 42310948 · doi:10.1002/jev2.70311
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 GSE327585_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 PRJNA1451476 and SRA study SRP690775. Searching any of these in the dataset finder brings you back here.

Study design
4 × SE-BDEV-Treated vs 4 × CON-BDEV-Treated vs 4 × Vehicle-Treated

Supports a between-group comparison across 12 samples.

How we read this: 3 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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