Advanced Functional Materials
Advanced Functional Materials
5 years ago

Electrospun Extracellular Matrix: Paving the Way to Tailor-Made Natural Scaffolds for Cardiac Tissue Regeneration

Electrospun Extracellular Matrix: Paving the Way to Tailor-Made Natural Scaffolds for Cardiac Tissue Regeneration
Beth Schoen, Eyal Zussman, Marcelle Machluf, Tzila Davidov, Yael Efraim, Ofek Elul, Ron Avrahami, Lior Gepstein, Idit Goldfracht, Limor Baruch
Biomimetic scaffolds generally aim at structurally and compositionally imitating native tissue, thus providing a supportive microenvironment to the transplanted or recruited cells in the tissue. Native decellularized porcine extracellular matrix (ECM) is becoming the ultimate bioactive material for the regeneration of different organs. Particularly for cardiac regeneration, ECM is studied as a patch and injectable scaffolds, which improve cardiac function, yet lack reproducibility and are difficult to control or fine-tune for the desired properties, like most natural materials. Seeking to harness the natural advantages of ECM in a reproducible, scalable, and controllable scaffold, for the first time, a matrix that is produced from whole decellularized porcine cardiac ECM using electrospinning technology, is developed. This unique electrospun cardiac ECM mat preserves the composition of ECM, self-assembles into the same microstructure of cardiac ECM ,and ,above all, preserves key cardiac mechanical properties. It supports cell growth and function, and demonstrates biocompatibility in vitro and in vivo. Importantly, this work reveals the great potential of electrospun ECM-based platforms for a wide span of biomedical applications, thus offering the possibility to produce complex natural materials as tailor-made, well-defined structures. Electrospinning of extracellular matrix (ECM) enables, for the first time, the tailor-made production of natural bioactive scaffolds. The development of an electrospun scaffold that is produced solely from whole decellularized porcine cardiac ECM is demonstrated. This scaffold preserves the most critical properties and functions of native cardiac ECM, while allowing a controlled, reproducible production.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/adfm.201700427

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