Table 1.

Classification of stem cells.

Classification	Differentiation capacity	Examples
Totipotent stem cells	The most strongest differentiation potential, able to develop into complete individuals	Early embryonic stages of the fertilized egg and two-cell stage
Pluripotent stem cells	Second only to totipotent stem cells, capable of differentiating into most cells	Embryonic stem cells and induced pluripotent stem cells
Adult stem cells	Limited differentiation potential, able to differentiate into multiple cell types in a specific tissue or organ	Hematopoietic stem cells, mesenchymal stem cells, and neural stem cells
Unipotent stem cells	The weakest differentiation capacity, capable of differentiating into only one specific cell type in its tissue of origin	Skin basal cells and skeletal muscle satellite cells