AGO2 and colorectal carcinoma: To further explore the potential mechanism of circTAX1BP1 in CRC cells, RNA immunoprecipitation (RIP) analysis using an AGO2 antibody revealed no significant difference in enrichment between the AGO2 and IgG groups, suggesting that circTAX1BP1 does not function as a miRNA sponge (Figure S4A, Supporting Information).