To determine the biological function of SELENPB1 in bladder cancer, we firstly employed immunoblotting assay to evaluate SELENBP1 expression in 8 of human bladder cancer cell lines, including T24, T24T, UMUC3, RT4, RT112, TCCSUP, J82 and 5637. Here, SELENBP1 is linked to urinary bladder carcinoma.