Zhang et al. demonstrated that preeclamptic deciduae contained markedly higher concentrations of TGFβ1 than normal term samples (4557 pg/mL vs. 1974 pg/mL; p < 0.05) [49], suggesting a possible mechanistic link between elevated Treg activity and preeclampsia risk in cancer survivors. Here, TGFB1 is linked to preeclampsia.