IREB2 and neoplasm: For FTL, FTH, and IRP2, we found an increased mRNA expression in lower tumor grades (G1-G2) and lower tumor pT-stage (pT1–pT2), but either similar or lower expression within the group of higher tumor grades (G3-G4) and higher tumor pT-stage (pT3–pT4; Figure 1H–J).