CEP55 and renal cell carcinoma: The CPTAC database further confirmed this, with CEP55 protein expression markedly elevated in RCC tissues in contrast to normal kidney tissues (P < 0.001) as shown in Fig. 8C. Additionally, an adverse correlation was observed between high CEP55 protein expression and OS in RCC patients as recorded in the CPTAC database (P < 0.05) (Fig. 8D).