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Quantitative Biology > Cell Behavior

arXiv:0806.4518 (q-bio)
[Submitted on 27 Jun 2008]

Title:The motility of normal and cancer cells in response to the combined influence of substrate rigidity and anisotropic microstructure

Authors:Tzvetelina Tzvetkova-Chevolleau (LTM, TIMC), Angélique Stéphanou (TIMC), David Fuard (LTM), Jacques Ohayon (TIMC), Patrick Schiavone (LTM, TIMC), Philippe Tracqui (TIMC)
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Abstract: Cell adhesion and migration are strongly influenced by extracellular matrix (ECM) architecture and rigidity, but little is known about the concomitant influence of such environmental signals to cell responses, especially when considering cells of similar origin and morphology, but exhibiting a normal or cancerous phenotype. Using micropatterned polydimethylsiloxane substrates (PDMS) with tuneable stiffness (500kPa, 750kPa, 2000kPa) and topography (lines, pillars or unpatterned), we systematically analyse the differential response of normal (3T3) and cancer (SaI/N) fibroblastic cells. Our results demonstrate that both cells exhibit differential morphology and motility responses to changes in substrate rigidiy and microtopography. 3T3 polarization and spreading are influenced by substrate microtopography and rigidity. The cells exhibit a persistent type of migration, which depends on the substrate anisotropy. In contrast, the dynamic of SaI/N spreading is strongly modified by the substrate topography but not by substrate rigidity. SaI/N morphology and migration seem to escape from extracellular cues: the cells exhibit uncorrelated migration trajectories and a large dispersion of their migration speed, which increases with substrate rigidity.
Subjects: Cell Behavior (q-bio.CB)
Cite as: arXiv:0806.4518 [q-bio.CB]
  (or arXiv:0806.4518v1 [q-bio.CB] for this version)
  https://doi.org/10.48550/arXiv.0806.4518
Journal reference: Biomaterials 29, 10 (2008) 1541--1551
Related DOI: https://doi.org/10.1016/j.biomaterials.2007.12.016

Submission history

From: Patrick Schiavone [view email] [via CCSD proxy]
[v1] Fri, 27 Jun 2008 12:57:20 UTC (317 KB)
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