Table 1.

Comparison of different sources of cells for cell therapy.

	hESCs	iPSCs	hNSCs	iPSC-derived hNSCs	MSCs	iPSC-derived MSCs
Ethical concerns	!	✓	!	✓	✓	✓
Genomic stability	!	!	✓	!	✓	!
Risk of tumor formation	!	!	✓	!	✓	!
Allogenic and autologous source available	!	✓	!	✓	✓	✓
Risk of immunological rejection	!	✓	!	✓	✓	✓
Donor-age-related issues	✓	!	✓	!	!	✓

✓ safe/advantage, ! concerns/disadvantage.