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Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay
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Nanofiber density determines endothelial cell behavior on hydrogel matrix.

Fernanda V Berti1, Carlos R Rambo, Paulo F Dias

  • 1Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil.

Materials Science & Engineering. C, Materials for Biological Applications
|October 8, 2013
PubMed
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Biomedical microdevices·2021

Bacterial cellulose pellicles have distinct surface architectures. Cell behavior is determined by the pellicle

Area of Science:

  • Biomaterials Science
  • Cell Biology
  • Tissue Engineering

Background:

  • Bacterial cellulose (BC) pellicles exhibit unique surface characteristics due to their synthesis.
  • The upper BC surface is fiber-dense, while the lower surface is more porous.
  • Understanding cell-biomaterial interactions is crucial for developing effective tissue engineering constructs.

Purpose of the Study:

  • To investigate how the microarchitecture of bacterial cellulose pellicle surfaces influences human umbilical vein endothelial cell (HUVEC) behavior.
  • To evaluate cell adhesion, ingrowth, proliferation, viability, and cell death mechanisms on different BC surfaces.
  • To determine the role of surface topology and fiber density in cell-material interactions.

Main Methods:

  • Culturing HUVECs on the distinct upper and lower surfaces of bacterial cellulose pellicles.
Keywords:
Bacterial cellulose tissue engineering construct (BCTEC)HUVECScaffold microarchitectureSecondary necrosis

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  • Analyzing cell adhesion, proliferation, viability, and death mechanisms.
  • Characterizing pellicle microarchitecture, including fiber density and surface porosity.

    • Main Results:

    • Cell behavior, including secondary necrosis, was significantly influenced by the pellicle's surface microarchitecture.
    • Cell-cellulose fiber interactions were the primary drivers of cell responses, independent of protein or chemical contaminants.
    • The purity of bacterial cellulose allowed for the isolation of microarchitecture's effect on cell behavior.

    Conclusions:

    • The microarchitecture of hydrogel materials, like bacterial cellulose, plays a critical role in determining the performance of biomedical products.
    • Bacterial cellulose tissue engineering constructs (BCTECs) performance can be optimized by controlling pellicle surface properties.
    • Surface topography and fiber network structure are key determinants of cell-material interactions in BC-based applications.