Rapid growth of cartilage rudiments may generate perichondrial structures by mechanical induction

J. H. Henderson, L. De La Fuente, D. Romero, C. I. Colnot, S. Huang, D. R. Carter, J. A. Helms

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Experimental and theoretical research suggest that mechanical stimuli may play a role in morphogenesis. We investigated whether theoretically predicted patterns of stress and strain generated during the growth of a skeletal condensation are similar to in vivo expression patterns of chondrogenic and osteogenic genes. The analysis showed that predicted patterns of compressive hydrostatic stress (pressure) correspond to the expression patterns of chondrogenic genes, and predicted patterns of tensile strain correspond to the expression patterns of osteogenic genes. Furthermore, the results of iterative application of the analysis suggest that stresses and strains generated by the growing condensation could promote the formation and refinement of stiff tissue surrounding the condensation, a prediction that is in agreement with an observed increase in collagen bundling surrounding the cartilage condensation, as indicated by picro-sirius red staining. These results are consistent with mechanical stimuli playing an inductive or maintenance role in the developing cartilage and associated perichondrium and bone collar. This theoretical analysis provides insight into the potential importance of mechanical stimuli during the growth of skeletogenic condensations.

Original languageEnglish (US)
Pages (from-to)127-137
Number of pages11
JournalBiomechanics and Modeling in Mechanobiology
Volume6
Issue number1-2
DOIs
StatePublished - Jan 1 2007
Externally publishedYes

ASJC Scopus subject areas

  • Biotechnology
  • Modeling and Simulation
  • Mechanical Engineering

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