Some previous studies confirmed that liver cancer, gastric cancer, and clear cell renal cell carcinoma (CCRCC) revealed relatively high CIAPIN1 expression compared to their matched adjacent tissue counterparts, while interference of CIAPIN1 might participate in carcinogenesis of colorectal cancer and HCC cells reflecting on proliferation and cell cycle promotion both in vitro and in vivo [17, 27–29]. Here, CIAPIN1 is linked to nonpapillary renal cell carcinoma.