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Updated: Mar 10, 2026

A Rapid, Scalable Method for the Isolation, Functional Study, and Analysis of Cell-derived Extracellular Matrix
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clickECM: Development of a cell-derived extracellular matrix with azide functionalities.

S M Ruff1, S Keller1, D E Wieland2

  • 1University of Stuttgart, Institute of Interfacial Process Engineering and Plasma Technology, Nobelstraße 12, 70569 Stuttgart, Germany.

Acta Biomaterialia
|December 15, 2016
PubMed
Summary

Researchers developed a new biomaterial called "clickECM" by modifying cell-derived extracellular matrix with azide groups. This innovation allows for precise functionalization using click chemistry, enhancing its potential for tissue engineering and biomaterial science.

Keywords:
Biorthogonal click chemistryCell-derived extracellular matrixMetabolic oligosaccharide engineeringSurface modificationTissue engineering

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Area of Science:

  • Biomaterial Science
  • Tissue Engineering
  • Cell Biology

Background:

  • Cell-derived extracellular matrix (ECM) is a promising biomaterial due to its inherent biological complexity.
  • Existing ECM biomaterials lack specific functional groups for targeted applications.
  • Incorporating functional groups into ECM without compromising its integrity is challenging.

Purpose of the Study:

  • To develop a method for functionalizing cell-derived ECM with specific, addressable chemical groups.
  • To create a biocompatible and intact azide-modified ECM for advanced biomaterial applications.
  • To enable bioorthogonal click reactions on the ECM for tunable bioactive properties.

Main Methods:

  • Metabolic oligosaccharide engineering was used to incorporate azide-modified monosaccharides (Ac4GalNAz) into fibroblast cell cultures.
  • The resulting azide-functionalized ECM was decellularized and gently homogenized, preserving its molecular structure.
  • The azide groups on the 'clickECM' were chemically characterized for accessibility.

Main Results:

  • A ubiquitous azide modification of fibroblast cell-derived ECM was successfully achieved.
  • The clickECM retained its structural integrity and biological composition after decellularization and homogenization.
  • The incorporated azides were accessible for bioorthogonal click reactions with small molecules and surface-bound cyclooctynes.

Conclusions:

  • The developed clickECM provides a functionalizable platform for creating advanced biomaterials.
  • This technique allows for the covalent coating of ECM with desired functionalities, expanding its utility.
  • ClickECM offers a promising approach for developing novel biomaterials with tunable properties for biomedical applications and tissue engineering.