DNMT3A and acute lymphoblastic leukemia: Relative to DNMTs, it has been found that hAFSCs also expressed only DNMT1 and DNMT3A and not DNMT3B, but differently from what was observed in the placenta-derived stem cells, EDs treatment affected the expression of the following genes: DNMT1 increased up to 4-fold in the BPA sample and up to 2.5-fold in the ALL sample; conversely, DNMT3A was dramatically reduced in all the experimental conditions (Figure 6).