Factors related to contraction and mechanical strength of collagen gels seeded with canine endotenon cells

Meng Yi Chen, Yulong Sun, Chunfeng Zhao, Mark E. Zobitz, Kai Nan An, Steven L. Moran, Peter C. Amadio

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Fibroblasts can construct a hydrated collagen lattice to a tissue-like structure that is greatly influenced by initial culture conditions. The purpose of this study was to investigate the effects of cell concentration and collagen concentration on the contraction kinetics and mechanical properties of resultant endotenon-derived fibroblast-seeded collagen lattice. The experiment was designed to evaluate the effect of cell concentration (0, 0.25,0.5, and 1.0 × 106 cells/mL) and collagen concentration (0.5, 1.0, 1.5, and 2.0 mg/mL). Collagen lattice contraction was recorded for 42 days, after which time the lattices were mechanically tested. The collagen lattices seeded with higher initial cell concentration had a shorter contraction lag phase (p < 0.01), and exhibited a higher ultimate stress (p < 0.01) and instantaneous and equilibrium modulus (p < 0.01) than those seeded with a lower initial cell concentration. The collagen lattices cultured with a lower initial collagen concentration also had a shorter contraction lag phase, and exhibited greater instantaneous and equilibrium modulus (p < 0.01) than those cultured with higher initial collagen concentration. The collagen lattices of initial 0.5 mg/mL collagen concentration had the highest value of ultimate stress (p < 0.03).

Original languageEnglish (US)
Pages (from-to)519-525
Number of pages7
JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
Volume82
Issue number2
DOIs
StatePublished - Jul 1 2007

Keywords

  • Animal model
  • Biocompatibility/soft tissue
  • Biomechanics
  • Cell culture
  • Collagen

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Factors related to contraction and mechanical strength of collagen gels seeded with canine endotenon cells'. Together they form a unique fingerprint.

  • Cite this