Table 2. Comparison of the coculture conditions with various origins of hMSCs feeder.

Article	Source of feeder	Culture condition	hPSCs	hPSCs passages	Teratoma formation
This report	human umbilical cord stroma	xeno-free medium	hiPSCs	over 30	Yes
Ma et al.[37]	human amniotic fluid	DMEM + 10% FBS	hESCs (X-01)	over 30	Yes
Fukusumi et al. [38]	human decidua	DMEM/F-12 + 10% FBS	hiPSCs	10–20	Yes
Soong et al. [39]	human amniotic fluid	IMDM + 15% FBS	hESCs	14–22	Yes
Havasi et al. [40]	human bone marrow	DMEM-low glucose + 10% FBS	hiPSCs	20	ND
Zhang et al. [41]	human bone marrow	DMEM-low glucose + 10% FBS	hiPSCs	14–16	Yes
Ding et al. [23]	human umbilical cord stroma	DMEM-low glucose + 10% CBS	hESCs (TW1)	over 20	No
Cho et al. [42]	human umbilical cord stroma	DMEM + 20% FBS	hESCs (H9)	20	Yes
Cheng et al. [43]	human bone marrow	DMEM-low glucose + 10% FBS	hESCs (H1)	under 13	ND

FBS: fetal bovine serum; CBS: human umbilical cord blood serum; ND: not determined because teratoma formation didn’t be mentioned in these reports.