SPINT1 and urinary bladder cancer: Different in terms of protein functions, such as Hepatocyte growth factor activator inhibitor type 1 (HAI-1) [13,14,15,16], Stathmin 1 (STMN-1) [17,18,19,20] and Tenascin C (TN-C) [21,22,23,24,25], whose activity has been observed in various types of cancer, inspired us to study them in bladder cancer.