ACE2 and renal cell carcinoma: Among the five top genes associated with the prediction of PFS (LRP2, NAT8, ACE2, CYP4A11 and EMX2), it is interesting that all of them have been associated with RCC prognosis (PMIDs: 36851274,36980716, 34630525, 34976818, 34704468, 38183818, 37065178).