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In vitro Examination of Piezo1-TRPV4 Dynamics: Implications for Placental Endothelial Function in Normal and Preeclamptic Pregnancies

GSE274555 Homo sapiens (human) RNA-seq (gene expression) 17 samples Submitted 2024/12/12 Platform GPL30173
At a glance

RNA-seq (gene expression) · human · 17 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
Homo sapiens (human)
Samples
17 samples: 7 × fpECs term control vs 5 × fpECs early-onset preeclampsia vs 5 × fpECSs preterm controlGroups 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
In vitro examination of Piezo1-TRPV4 dynamics: implications for placental endothelial function in normal and preeclamptic pregnanciesAmerican journal of physiology. Cell physiology · 2025
Summary (written by the submitters)
Mechanosensation is essential for endothelial cell (EC) function, which is compromised in early-onset preeclampsia (EPE) impacting offspring health. The ion channels Piezo1 and TRPV4 are co-regulated mechanosensors in ECs. Here we show functional co-expression of both channels in feto-placental ECs (fpECs) and that calcium influx and membrane depolarization in response to chemical channel activation is reduced in EPE fpECs.
Read the full summary ↓
Downstream of channel activation, Piezo1 alone can induce phosphorylation of endothelial nitric oxide synthase (eNOS) in fpECs, while combined activation of Piezo1 and TRPV4 only affects eNOS phosphorylation in EPE fpECs. Additionally, combined activation reduces the barrier integrity of fpECs, also with a stronger effect in EPE fpECs. This implies altered Piezo1-TRPV4 co-regulation in EPE. Mechanistically, we suggest this to be driven by changes in the arachidonic acid metabolism in EPE fpECs as identified by RNA-Seq. Targeting of Piezo1 and TRPV4 might hold potential for EPE treatment options in the future.
Published in
In vitro examination of Piezo1-TRPV4 dynamics: implications for placental endothelial function in normal and preeclamptic pregnancies
Allerkamp HH, Bondarenko AI, Tawfik I et al. · American journal of physiology. Cell physiology 2025 · PMID 39652778 · doi:10.1152/ajpcell.00794.2024
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 GSE274555_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 PRJNA1147202 and SRA study SRP526525. Searching any of these in the dataset finder brings you back here.

Study design
7 × fpECs term control vs 5 × fpECs early-onset preeclampsia vs 5 × fpECSs preterm control

Supports a between-group comparison across 17 samples.

How we read this: 3 replicated groups read from 17 sample titles; they account for 17 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.