Since the derivation of embryonic stem (ES) cell lines from human blastocysts in 1998 [1], ES cells have emerged as a potential source of cells and tissues that could be used for cell replacement therapy of incurabl...
Stem cells function to generate differentiated cells, and, at the same time, are maintained as ‘immortal' cells through self-renewal. Accumulated evidence indicates that adult stem cells may be the most common precu...