Repair of bone defects using synthetic mimetics of collagenous extracellular matrices

Matthias P. Lutolf, Franz E. Weber, Hugo G. Schmoekel, Jason C. Schense, Thomas Kohler, Ralph Müller, Jeffrey A. Hubbell

Research output: Contribution to journalArticle

616 Citations (Scopus)

Abstract

We have engineered synthetic poly(ethylene glycol) (PEG)-based hydrogels as cell-ingrowth matrices for in situ bone regeneration. These networks contain a combination of pendant oligopeptide ligands for cell adhesion (RGDSP) and substrates for matrix metalloproteinase (MMP) as linkers between PEG chains. Primary human fibroblasts were shown to migrate within these matrices by integrin- and MMP-dependent mechanisms. Gels used to deliver recombinant human bone morphogenetic protein-2 (rhBMP-2) to the site of critical-sized defects in rat crania were completely infiltrated by cells and were remodeled into bony tissue within five weeks. Bone regeneration was dependent on the proteolytic sensitivity of the matrices and their architecture. The cell-mediated proteolytic invasiveness of the gels and entrapment of rhBMP-2 resulted in efficient and highly localized bone regeneration.

Original languageEnglish
Pages (from-to)513-518
Number of pages6
JournalNature Biotechnology
Volume21
Issue number5
DOIs
StatePublished - May 1 2003
Externally publishedYes

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Bone Regeneration
Polyethylene glycols
Extracellular Matrix
Bone
Repair
Matrix Metalloproteinases
Bone and Bones
Defects
Gels
Oligopeptides
Hydrogels
Ethylene Glycol
Cell adhesion
Fibroblasts
Skull
Cell Adhesion
Integrins
Rats
Proteins
Tissue

ASJC Scopus subject areas

  • Microbiology

Cite this

Lutolf, M. P., Weber, F. E., Schmoekel, H. G., Schense, J. C., Kohler, T., Müller, R., & Hubbell, J. A. (2003). Repair of bone defects using synthetic mimetics of collagenous extracellular matrices. Nature Biotechnology, 21(5), 513-518. https://doi.org/10.1038/nbt818

Repair of bone defects using synthetic mimetics of collagenous extracellular matrices. / Lutolf, Matthias P.; Weber, Franz E.; Schmoekel, Hugo G.; Schense, Jason C.; Kohler, Thomas; Müller, Ralph; Hubbell, Jeffrey A.

In: Nature Biotechnology, Vol. 21, No. 5, 01.05.2003, p. 513-518.

Research output: Contribution to journalArticle

Lutolf, MP, Weber, FE, Schmoekel, HG, Schense, JC, Kohler, T, Müller, R & Hubbell, JA 2003, 'Repair of bone defects using synthetic mimetics of collagenous extracellular matrices', Nature Biotechnology, vol. 21, no. 5, pp. 513-518. https://doi.org/10.1038/nbt818
Lutolf MP, Weber FE, Schmoekel HG, Schense JC, Kohler T, Müller R et al. Repair of bone defects using synthetic mimetics of collagenous extracellular matrices. Nature Biotechnology. 2003 May 1;21(5):513-518. https://doi.org/10.1038/nbt818
Lutolf, Matthias P. ; Weber, Franz E. ; Schmoekel, Hugo G. ; Schense, Jason C. ; Kohler, Thomas ; Müller, Ralph ; Hubbell, Jeffrey A. / Repair of bone defects using synthetic mimetics of collagenous extracellular matrices. In: Nature Biotechnology. 2003 ; Vol. 21, No. 5. pp. 513-518.
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