Abstract

Promoting regeneration using scaffolds created by decellularizing native tissue is becoming a popular technique applied to a variety of tissues. We demonstrate a method to decellularize highly vascular tissue keeping the vascular structure intact down to the capillary scale. Using vascular corrosion casting (VCC), we created a method for quantitatively assessing the functionality of vascular extracellular matrix (ECM) following decellularization. Murine lung tissue was decellularized using a number of techniques, then characterized using standard histological methods, as well as our quantitative VCC (qVCC) technique. Using an optimized acellular method, we successfully decellularized lung tissue while leaving behind a patent vascular network based on qualitative and quantitative histological methods.

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