Table 5.

Comparison between BMSCs, UC-MSCs and ADSCs for the treatment of SCI

Characteristics	BMSCs	UC-MSCs	ADSCs
Harvesting procedure	Invasive	None invasive	Invasive
Easiness to isolate and culture	Easy	Easy	Easy
Effect of age on cell quantity and quality	Quantity and quality decline with age	Unaffected	Quantity and quality decline with age
Potency to differential into nerve cells	Lower	Higher	Lower
Cell renewal	Lower proliferative potential	Higher proliferative potential	Lower proliferative potential
Expression of embryonic markers	Lower	Higher	Lower
Immune modulatory property	Good	Good	Good
Allogeneic cell rejection	No	No	No
Ethical issues	No	No	No
Risk of tumorigenicity	Very low	Very low	Very low