Oriented clonal cell dynamics enables accurate growth and shaping of vertebrate cartilage

Marketa Kaucka, Tomas Zikmund, Marketa Tesarova, Daniel Gyllborg, Andreas Hellander, Josef Jaros, Jozef Kaiser, Julian Petersen, Bara Szarowska, Phillip T. Newton, Vyacheslav Dyachuk, Lei Li, Hong Qian, Anne Sofie Johansson, Yuji Mishina, Joshua D. Currie, Elly M. Tanaka, Alek Erickson, Andrew T Dudley, Hjalmar BrismarPaul Southam, Enrico Coen, Min Chen, Lee S. Weinstein, Ales Hampl, Ernest Arenas, Andrei S. Chagin, Kaj Fried, Igor Adameyko

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Abstract

Cartilaginous structures are at the core of embryo growth and shaping before the bone forms. Here we report a novel principle of vertebrate cartilage growth that is based on introducing transversally-oriented clones into pre-existing cartilage. This mechanism of growth uncouples the lateral expansion of curved cartilaginous sheets from the control of cartilage thickness, a process which might be the evolutionary mechanism underlying adaptations of facial shape. In rod-shaped cartilage structures (Meckel, ribs and skeletal elements in developing limbs), the transverse integration of clonal columns determines the well-defined diameter and resulting rod-like morphology. We were able to alter cartilage shape by experimentally manipulating clonal geometries. Using in silico modeling, we discovered that anisotropic proliferation might explain cartilage bending and groove formation at the macro-scale.

Original languageEnglish (US)
Article numbere25902
JournaleLife
Volume6
DOIs
Publication statusPublished - Apr 17 2017

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ASJC Scopus subject areas

  • Neuroscience(all)
  • Immunology and Microbiology(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Kaucka, M., Zikmund, T., Tesarova, M., Gyllborg, D., Hellander, A., Jaros, J., ... Adameyko, I. (2017). Oriented clonal cell dynamics enables accurate growth and shaping of vertebrate cartilage. eLife, 6, [e25902]. https://doi.org/10.7554/eLife.25902