Table 1.

MSCs used in AC defects repair.

MSCs	Source	Autologous/Allogeneic	Available volume	Chondrogenesis potential
BMSCs	Bone marrow	Autologous	++	++
ADSCs	Adipose	Autologous	+++	++
UCMSCs	Umbilical cord	Almost allogeneic	+++	+++
SMSCs	Synovium	Autologous	+	+++
PMSCs	Periosteum	Autologous	+	+
MMSCs	Muscle	Autologous	+	+