The evaluation of the iPSC PBscd08cl02HU teratoma sections by IHC revealed the presence of cells/tissues of the 3 germ layers, evidenced by the α-SMA immunostaining positivity, identifying elongated cells like muscle fibers, of mesodermal origin (Figure 11(a), I–IV), AFP immunostaining positivity, identifying respiratory and guandular epithelial cells of endodermal origin (Figure 11(a), I and V–VII), besides the positivity for Nestin evidencing neural tissue that is of ectodermal origin (Figure 11(b)). Here, ACTA1 is linked to teratoma.