Figure 1From: Stimulation of Activin A/Nodal signaling is insufficient to induce definitive endoderm formation of cord blood-derived unrestricted somatic stem cellsSox17 mRNA levels following Activin A induction. Sox17 mRNA levels for untreated and Activin A treated USSC lines and untreated, spontaneously differentiated and Activin A treated hESC. Sox17 mRNA levels were very low in untreated and Activin A treated USSC lines (0.001-fold of untreated hESC). Sox17 mRNA levels were low in untreated hESC, moderately low in spontaneously differentiated hESC and significantly up-regulated in Activin A treated hESC.Back to article page