TACR1 and colon carcinoma: In line with a previous study on blocking NK‐1R in inducing apoptosis in human SW403 colon carcinoma cell line,[10c] HCT116 and SW620 cells displayed typical apoptotic characteristics such as chromosome condensation, nuclear fragmentation, and membrane blebbing in the presence of SR140333 (Appendix A1 and Figure S3, Supporting Information).