TGFB1 and medulloblastoma: Of note, co-culture in medulloblastoma-conditioned media did not affect TGF-β RII-expression in transduced cord blood NK cells (73,827 ± 40,154 and 88,750 ± 64,061 TGF-βRII MFI, n = 9, p = 0.4961 in the presence versus absence of MB supernatant, respectively, Fig. 3b, c).