The team is now attempting the same procedure using human kidneys, and
also pig kidneys, which could be used to make scaffolds if there were a scarcity of human donors.
If the marriage of stem cells and CRISPR follows a similar path, it might not be long before
pigs have enough Homo sapiens in them not only to grow human hearts, lungs, livers, and
kidneys for transplant but
also to model human diseases more closely than current lab animals do and to test experimental drugs.