Background and Objective: The fetal membranes,
amnion and chorion, are the attractive sources of
mesenchymal stem cells (MSCs). However, the comparative
study between the amnion and chorionderived
MSCs are still unclear. This study aimed to
isolate and compare the properties of the amniotic
mesenchymal stem cell (AMSC) and chorionic
mesenchymal stem cell (CMSC).
Methods: AMSC and CMSC were isolated from the
fetal membranes (n=5). The morphologies, population
doubling times (PDT), MSC surface markers, and
multilineage differentiation potentials of AMSC and
CMSC were compared. Moreover, the viability of both
MSCs were investigated after cryopreservation.
Results: AMSC and CMSC exhibited similar
morphologies. Both expressed CD44, CD73, CD105 but
not CD34 on the cell surfaces and could be
differentiated into adipogenic, osteogenic, and
hepatogenic cells. As for PDT, AMSC proliferated
faster than CMSC, but this was not reached
statistically significant. After the cryopreservation for
1 month, more than 90% of AMSC and CMSC were
viable.
Conclusions: The results of this study demonstrated
that AMSC and CMSC had similar characteristics and
differentiation potential. Therefore, both amnion and chorion are the alternative sources of MSCs, which
might be useful for therapeutic applications.