Scientists from the Worcester Polytechnic Institute have turned a spinach leaf into working human heart tissue, and this could revolutionize the treatment of damaged organs.
Tissue engineering (also called regenerative medicine) attempts to create functional human tissue from cells in a laboratory. Its goal is to replace tissues and organs that fail due to disease, genetic errors, or other reasons. Scientists have already created large-scale human tissue in a lab, but without a vascular network that carries blood, a big part of that tissue dies.
To fight that, the researchers took a spinach leaf and removed its plant cells, leaving a frame made of cellulose. “Cellulose is biocompatible [and] has been used in a wide variety of regenerative medicine applications, such as cartilage tissue engineering, bone tissue engineering, and wound healing,” the authors write in their paper.
They bathed the remaining frame in live human cells and they grew on the leaf’s tiny veins. The team…
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