In modern regenerative medicine, researchers can reprogram adult skin fibroblasts to become induced pluripotent stem cells (iPSCs). By exposing these unspecialised cells to a specific sequence of chemical signals in the laboratory, they can be directed to develop into mature, insulin-secreting pancreatic beta cells.
State the biological term for the process in which these unspecialised stem cells develop into highly specialised cells, such as pancreatic beta cells.