stem cells hold promise in the field of regenerative medicine. Because they can propagate indefinitely, as well as give rise to every other cell type in the body (such as neurons, heart, pancreatic, and liver cells), they represent a single source of cells that could be used to replace those lost to damage or disease.

The best-known type of pluripotent stem cell is the embryonic stem cell. However, since the generation of embryonic stem cells involves