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Flow induced-endothelial phenotypic transition contributes to Intracranial Aneurysm

GSE329653 Mus musculus (mouse) Single-cell RNA-seq 9 samples Submitted 2026/05/05 Platform GPL24247
At a glance

Single-cell RNA-seq · mouse · 9 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart. Read from the summary: GEO's own type field only says 'expression profiling by sequencing', so confirm it in the paper.
Organism
Mus musculus (mouse)
Samples
9 samples: 3 × PSS vs 3 × HSS vs 3 × VortexGroups 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)
Rupture of intracranial aneurysms (IAs) represents a life-threatening cerebrovascular event associated with high morbidity and mortality. Elucidating the pathological mechanisms driving IA initiation and progression is critical for developing an effective therapeutic strategy. Endothelial cell (EC) dysfunction is known to contribute to IA pathogenesis.
Read the full summary ↓
Hemodynamic force— particularly fluid shear stress (FSS) are well-established mediators of IA pathogenesis, yet the mechanisms by which FSS triggers endothelial injury remain incompletely understood. In this study, single-cell sequencing of human revealed that endothelial-to-mesenchymal transition (EndMT) as a hallmark feature of early-stage IA formation, whereas EndMT was markedly attenuated in ruptured aneurysms. Using a mouse IA model and an in vitro parallel-plate flow chamber system, we demonstrated that exposure to high laminar FSS (HSS) promotes EndMT in endothelial cells, concomitant with actin cytoskeletal reorganization and nuclear translocation of Yes-associated protein (YAP). In contrast, under low or vortex flow (VSS) conditions characteristic of advanced IA stages, endothelial cells undergo phenotypic reversion—evidenced by reduced expression of cytoskeletal proteins and cytoplasmic sequestration of YAP. Notably, endothelial inflammation escalates progressively throughout IA development and contributes directly to sustained endothelial dysfunction. Pharmacological inhibition of actin polymerization effectively suppressed EndMT in the early stage but failed to restore endothelial integrity during the late stage. Collectively, these findings identify FSS–cytoskeleton–YAP–EndMT axis as a stage-specific, druggable pathway with translational potential for early intervention in intracranial aneurysm disease.
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 GSE329653_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: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA1460422 and SRA study SRP696390. Searching any of these in the dataset finder brings you back here.

Study design
3 × PSS vs 3 × HSS vs 3 × Vortex

Supports a between-group comparison across 9 samples.

How we read this: 3 replicated groups read from 9 sample titles; they account for 9 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.