Stanford University Jun 13 2025 There are more than 100,000 people on organ transplant lists in the U.S., some of whom will wait years to receive one – and some may not survive the wait. Even with a good match, there is a chance that a person's body will reject the organ. To shorten waiting periods and reduce the possibility of rejection, researchers in regenerative medicine are developing methods to use a patient's own cells to fabricate personalized hearts, kidneys, livers, and other organs