Vitronectin alters fibronectin organization at the cell-material interface

Cristina González-García, Marco Cantini, David Moratal, George Altankov, Manuel Salmerón-Sánchez

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Cells assemble fibronectin (FN) into fibrils in a process mediated by integrins. For this process to occur, it is known that the presence of other serum proteins is necessary. However, the individual effect of these proteins on FN fibrillogenesis has not been addressed so far. In this study, the effect of vitronectin (VN), an ECM adhesion protein, on material-driven FN fibrillogenesis and cell-mediated FN reorganization is investigated. Poly(ethyl acrylate), PEA, which has previously shown the ability to induce the organization of FN into well-developed physiological-like networks upon adsorption, was employed as a material substrate. FN adsorption, cell adhesion and cellular FN reorganization in the presence or absence of VN were studied. Both FN surface density, quantified via western blot, and its distribution on PEA surfaces, determined via atomic force microscopy, were altered when FN was adsorbed competitively with VN at certain compositions. Moreover, the presence of VN on the material surfaces enhanced cell-mediated FN reorganization and secretion, in comparison with the process which took place in the presence of serum proteins.

Original languageEnglish
Pages (from-to)618-625
Number of pages8
JournalColloids and Surfaces B: Biointerfaces
Volume111
DOIs
Publication statusPublished - Aug 13 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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