BPTF and colorectal carcinoma: To further investigate the regulatory mechanisms of hsa_circRNA_102051, miR-203a and BPTF, CRC cells were divided in to 4 groups, respectively transfected with vector, hsa_circRNA_102051, miR-203a, and hsa_circRNA_102051 plus miR-203a (Supplementary Fig. 1B-C).