- A L Caplan: Center for Bioethics, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
The harvesting and transplantation of organs from genetically altered pigs has sparked an escalating debate within the transplant community worldwide. The ethical and moral arguments against using another life form to save humans--as well as using humans for experimentation--run side by side with the potential medical considerations of inadvertently unleashing heretofore unknown virulent agents on the public. Nonetheless, the ethical case against xenografting, while compelling and worthy of more public and expert debate and discussion, is not persuasive. Genetically altered pigs might not be able to save human lives at present, but the time has come to take a tentative step to see whether they can in the future.