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Related Experiment Videos

Developmental biology and tissue engineering.

Francoise Marga1, Adrian Neagu, Ioan Kosztin

  • 1Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211, USA.

Birth Defects Research. Part C, Embryo Today : Reviews
|January 30, 2008
PubMed
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Tissue engineering uses bioprinting and the concept of "tissue liquidity" to mimic embryonic development. This approach leverages cell fusion to self-assemble cellular spheroids into complex 3D living structures for organ regeneration.

Area of Science:

  • Developmental Biology
  • Tissue Engineering
  • Biophysics

Background:

  • Morphogenesis, the process of tissue and organ formation during embryonic development, is genetically controlled but relies on physical principles.
  • Current tissue engineering (TE) methods often involve seeding cells in scaffolds, which can be inefficient for creating complex structures.
  • Understanding the physical forces governing cell organization is crucial for advancing regenerative medicine.

Purpose of the Study:

  • To develop a novel tissue engineering method inspired by developmental biology principles.
  • To utilize bioprinting and the concept of tissue liquidity for controlled self-assembly of cellular structures.
  • To explore the potential of tissue fusion for in vitro organ fabrication.

Main Methods:

Related Experiment Videos

  • Implementation of a novel TE method combining bioprinting with developmental biology principles.
  • Application of the "tissue liquidity" concept, where cell aggregates behave like liquids and fuse.
  • Experimental observation of shape evolution in bioprinted tube- and sheet-like constructs.
  • Computer simulations based on a liquid model to analyze tissue self-assembly.

    • Main Results:

    • Demonstrated that multicellular aggregates can fuse, analogous to liquid behavior.
    • Observed and documented the postprinting shape evolution of bioprinted constructs.
    • Computer simulations supported the "tissue liquidity" model for self-assembly.
    • Validated the use of physical parameters like surface tension and viscosity to control tissue formation.

    Conclusions:

    • Tissue liquidity offers a promising mechanism for self-assembly of cellular spheroids into 3D living structures.
    • This novel bioprinting approach, guided by developmental biology, can potentially lead to more efficient in vitro organ fabrication.
    • The study highlights the importance of physical processes in morphogenesis and their application in tissue engineering.