Scientists have been able to create a new windpipe using stem cells. They took a windpipe from a dead patient, removed all the cells, and placed stem cells from a patient onto the remaining scaffolding to create what was in effect a new windpipe, with the patient’s own cells. The patient had an irreparably damaged her windpipe from TB.
The significance of this is that it opens the door to creating whole organs, like kidneys, livers and perhaps even hearts and lungs. This is a radical advance because up until now, stem cells have only really been useful to replace tissue, or bits of the body without a complex organized structure. But this means we could potentially replace any part of the body with a person’s own stem cells. New livers for people with liver failure, new kidneys from those with kidney failure – and because the cells would come from the patient, there would be no rejection. Indeed, this patient has shown no signs of rejection.
Does this raise any ethical issues?
Read More »The Future of Making Organs for Self-Transplantation