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siPiezo1 or scRNA immortalised MSC cell line (Y201) cultured on fibronectin coated glass coverslips

GSE288464 Homo sapiens Expression profiling by high throughput sequencing 6 samples Submitted 2025/08/20 Platform GPL30173
Summary
Mechanosensitive ion channels have emerged as fundamental proteins in sensing extracellular matrix (ECM) mechanics. Among those, Piezo1 has been proposed as a key mechanosensor in cells. However, whether and how Piezo1 senses time-dependent ECM mechanical properties (i.e., viscoelasticity) remains unknown. To address this question, we combined an immortalised mesenchymal stem cell (MSC) line with adjustable Piezo1 expression with soft (400 Pa) and stiff (25 kPa) viscoelastic hydrogels with independently tuneable Young’s modulus and stress relaxation. Here, we propose that Piezo1 is an important sensor of stiffness at this range (25kPa) consistent with the molecular clutch model. By performing RNA sequencing (RNA-seq), we identified the transcriptomic phenotype of MSCs response to matrix viscoelasticity and Piezo1 activity, highlighting gene signatures that drive MSCs mechanobiology at this elasticity scale.
Published in
Piezo1 regulates the mechanotransduction of soft matrix viscoelasticity
A G Oliva M, Ciccone G, Fläschner G et al. · Nature communications 2025 · PMID 41093846 · doi:10.1038/s41467-025-64185-5
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Also filed as BioProject PRJNA1217813 and SRA study SRP560867. Searching any of these in the dataset finder brings you back here.

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