Assertion: embryonic fibroblast | /r/CapableOf | play vital role
Facets:
value: in stem cell research
type: LOCATION
Source sentences:
text: Mouse embryonic fibroblasts (MEFs) play a vital role in stem cell research where they function as feeder cells to maintain mouse and human embryonic stem cells (ESC) or pluripotent stem cells (iPSC) in an undifferentiated state .