Structural and biomechanical characterizations of porcine myocardial extracellular matrix

  • Bo Wang
  • Mary E. Tedder
  • Clara E. Perez
  • Guangjun Wang
  • Amy L. de Jongh Curry
  • Filip To
  • Steven H. Elder
  • Lakiesha N. Williams
  • Dan T. Simionescu
  • Jun Liao


Extracellular matrix (ECM) of myocardium plays an important role to maintain a multilayered helical architecture of cardiomyocytes. In this study, we have characterized the structural and biomechanical properties of porcine myocardial ECM. Fresh myocardium were decellularized in a rotating bioreactor using 0.1 % sodium dodecyl sulfate solution. Masson’s trichrome staining and SEM demonstrated the removal of cells and preservation of the interconnected 3D cardiomyocyte lacunae. Movat’s pentachrome staining showed the preservation of cardiac elastin ultrastructure and vascular elastin distribution/alignment. DNA assay result confirmed a 98.59 % reduction in DNA content; the acellular myocardial scaffolds were found completely lack of staining for the porcine α-Gal antigen; and the accelerating enzymatic degradation assessment showed a constant degradation rate. Tensile and shear properties of the acellular myocardial scaffolds were also evaluated. Our observations showed that the acellular myocardial ECM possessed important traits of biodegradable scaffolds, indicating the potentials in cardiac regeneration and whole heart tissue engineering.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Bo Wang
    • 1
  • Mary E. Tedder
    • 2
  • Clara E. Perez
    • 1
  • Guangjun Wang
    • 1
  • Amy L. de Jongh Curry
    • 3
  • Filip To
    • 1
  • Steven H. Elder
    • 1
  • Lakiesha N. Williams
    • 1
  • Dan T. Simionescu
    • 2
  • Jun Liao
    • 1
  1. 1.Tissue Bioengineering Laboratory, Department of Agricultural and Biological Engineering, Computational Manufacturing and DesignCAVS, Mississippi State UniversityStarkvilleUSA
  2. 2.Department of BioengineeringClemson UniversityClemsonUSA
  3. 3.Department of Biomedical EngineeringUniversity of MemphisMemphisUSA

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