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Microglia aggravate white matter injury via C3/C3aR pathway after experimental subrachnoid hemorrhage

GSE254320 Mus musculus (mouse) RNA-seq (gene expression) 12 samples Submitted 2025/01/25 Platform GPL24247
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: 3 × Con vs 3 × Hb vs 3 × A vs 3 × BGroups 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.
Summary (written by the submitters)
Activation of microglia induces neuroinflammation in acute and chronic phase is closely related to the white matter injury (WMI) pathophysiologyafter subrachnoid hemorrhage (SAH). The complement C3a receptor (C3aR) has a dual role in regulating inflammation and plays a role in neurodevelopment, neuroplasticity and neurodegeneration, but it’s effect on WMI during SAH re'mairemains unknown.
Read the full summary ↓
In this study, 175 male C57BL/6J mice received SAH by endovascular perforation. oxy-Hb was used to simulate SAH in vitro. Multiple technical approaches, including immunohistochemistry, transcriptome sequencing, neurological function assessment, and various molecular biotechnologies, were used to assess the activation of the C3-C3aR pathway after SAH and its effects on microglial polarizations and WMI after SAH. The results showed that abnormal microglial activation after SAH was accompanied by upregulation of complement C3 and C3aR. C3aR inhibition reduced abnormal microglial activation, attenuated neuroinflammation, ameliorated WMI and cognitive deficits after SAH. RNA-Seq revealed that C3aR inhibition downregulated several immune and inflammatory pathways and ameliorated cellular injury by downregulating Pidd1 expression. The adverse effects of C3-C3aR in SAH may be related to Endoplasmic reticulum (ER) stress-dependent cellular injury and formation of inflammasome. PERK agonists exacerbate cellular injury and neuroinflammation attenuated by C3aR inhibition. Intranasal C3a treatment during the subacute phase of SAH helps to reduce astrocyte reactivity and ameliorate cognitive deficits after SAH. In conclusion, these findings suggest that C3aR plays a critical role in the regulation of neuroinflammation and WMI after SAH, providing new therapeutic targets to ameliorate WMI and cognitive deficits after SAH.
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 GSE254320_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 PRJNA1069737 and SRA study SRP486150. Searching any of these in the dataset finder brings you back here.

Study design
3 × Con vs 3 × Hb vs 3 × A vs 3 × B

Supports a between-group comparison across 12 samples.

How we read this: 4 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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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.