XIAP and colon carcinoma: In present study, TLBZT alone or in combination with 5-Fu, significantly induced apoptosis in CT26 colon carcinoma, accompanied by Casapse-3, 8 and 9 activation, and downregulation of XIAP and Survivin, suggested casapses activation and downregulation of XIAP and Survivin may contribute to TLBZT and 5-Fu induced apoptosis.