TGFB1 and teratocarcinoma: The gene expression analysis of TGFβ family factors in pluripotent stem and teratocarcinoma cells identified lower expression of ActivinA in F9 and P19 mECCs than in mESCs and mEGCs, whereas the expression levels of Nodal, Lefty1, TGFβ1, BMP4, and GDF3 were similar.