Assertion: amniotic fluid's stem cell | /r/CapableOf | express transcription factors
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text: Amniotic fluid- and placental-derived stem cells (AFSCs) expressed surface markers and transcription factors unique to embryonic stem cells (ECCs), including octamer-binding transcription factor 4 and stage-specific embryonic antigen, which would indicate pluripotential capability and self-renewal of AFSCs.