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Updated: Nov 1, 2025

Concentric Gel System to Study the Biophysical Role of Matrix Microenvironment on 3D Cell Migration
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Hydrostatic pressure promotes migration and filamin-A activation in fibroblasts with increased p38 phosphorylation
Yu-Chiu Kao1, Zih-Hua Chen2, Wen-Yu Wang2
1Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, 10617, Taiwan; Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan.
Abstract:
Fibroblast migration is closely regulated by the mechanical characteristics in surrounding microenvironment. While increased interstitial hydrostatic pressure (HP) is a hallmark in many pathological and physiological conditions, little is known about how the HP affects fibroblast motility. Using cell-culture chips with elevated HP conditions, we showed that 20 cmH2O HP significantly accelerated fibroblast migration. The HP-induced migration acceleration was dependent on the augmentation of transforming growth factor-β1, and correlated with the activation of filamin A via the phosphorylation of p38 mitogen-activated protein kinase. Our results suggest that interstitial HP elevation associated with various pathological states could significantly regulate fibroblast migration.
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