CSTP1 and renal carcinoma: To our surprise, CSTP1 mRNA was decreased significantly (by 40%∼90%) in 80% (8 of 10) of bladder cancer tissues as compared to paired adjacent non-cancerous tissues, whereas the expression of CSTP1 mRNA in liver, pancreas, stomach, colon and renal cancer tissues did not change significantly (Fig. 1A).