Characteristics | ASCs | ESCs | iPSCs |
Potency | Limited (multipotent or uni-potent) | Pluripotent | Pluripotent |
Availability | Easy | Difficult | Easy |
Ethical issues | Less problematic | More problematic | Less problematic |
Immunogenicity | Less problematic | More problematic | Less problematic |
Self-renewing period | Shorter | Longer | Longer |
Teratogenicity | Less tumorigenic | Yes | Yes |