Cited by 1,508Hydrogels: synthesis, properties, applicationsTissue Engineering and Regenerative MedicineProtease and Inhibitor Mechanisms

Synthetic Matrix Metalloproteinase-Sensitive Hydrogels for the Conduction of Tissue Regeneration: Engineering Cell-Invasion Characteristics

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Lutolf, M. P., Lauer-Fields, J. L., Schmoekel, H. G., Metters, A. T., Weber, F. E., Fields, G. B., Hubbell, J. A.·2003·Proceedings of the National Academy of Sciences

Abstract

Synthetic hydrogels have been molecularly engineered to mimic the invasive characteristics of native provisional extracellular matrices: a combination of integrin-binding sites and substrates for matrix metalloproteinases (MMP) was required to render the networks degradable and invasive by cells via cell-secreted MMPs. Degradation of gels was engineered starting from a characterization of the degradation kinetics (k(cat) and K(m)) of synthetic MMP substrates in the soluble form and after crosslinking into a 3D hydrogel network. Primary human fibroblasts were demonstrated to proteolytically invade these networks, a process that depended on MMP substrate activity, adhesion ligand concentration, and network crosslinking density. Gels used to deliver recombinant human bone morphogenetic protein-2 to the site of critical defects in rat cranium were completely infiltrated by cells and remodeled into bony tissue within 4 wk at a dose of 5 microg per defect. Bone regeneration was also shown to depend on the proteolytic sensitivity of the matrices. These hydrogels may be useful in tissue engineering and cell biology as alternatives for naturally occurring extracellular matrix-derived materials such as fibrin or collagen.

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Crossref · 10.1073/pnas.0737381100

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Authors
Lutolf, M. P., Lauer-Fields, J. L., Schmoekel, H. G., Metters, A. T., Weber, F. E., Fields, G. B., & Hubbell, J. A.
Affiliations
  • Department of Materials and Institute for Biomedical Engineering, Swiss Federal Institute of Technology and University of Zurich, CH-8044 Zurich, Switzerland; Department of Chemistry and Biochemistry, Florida Atlantic University, Boca Raton, FL 33431-0991; Small Animal Surgery, University of Bern, CH-3012 Bern, Switzerland; and Department of Cranio-Maxillofacial Surgery, University Hospital Zurich, CH-8091 Zurich, Switzerland
  • University of Bern (CH)
Venue
Proceedings of the National Academy of Sciences
Published
2003-04-09
Volume
100
Issue
9
Pages
5413-5418
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2018818236
Cited by
1,508
References
42
Citations by year
2026: 44 · 2025: 49 · 2024: 44 · 2023: 50 · 2022: 62 · 2021: 63 · 2020: 81 · 2019: 89 · 2018: 86 · 2017: 82 · 2016: 76 · 2015: 81 · 2014: 92 · 2013: 84 · 2012: 92
FWCI
15.48
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
National Cancer Institute (R01CA098799)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
Keywords
synthetic hydrogels, matrix metalloproteinases, cell invasion, extracellular matrix mimics, fibroblast invasion, crosslink density, bone regeneration, tissue regeneration, biomaterials
MeSH terms
Animals, Cells, Cultured, Humans, Kinetics, Skull, Fracture Healing, Rats, Sprague-Dawley, Hydrogel, Polyethylene Glycol Dimethacrylate, Matrix Metalloproteinases, Tissue Engineering, Rats

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