RRM2 and renal cell carcinoma: Eighteen mRNAs showed no statistically significant difference between RCC and normal kidney samples, while three – ASF1B (p = 0.012), Ribonucleotide Reductase Regulatory Subunit M2 (RRM2) (p = 0.002) and FOXM1 (p = 0.024) – were considered significant (Figure 7).