STING1 and neoplasm: The wild‐type (wt) C57BL/6 mice, C57BL/6J STING knockout (C57BL/6J‐STING‐KO, purchased from GemPharmatech Co., Ltd.), Mc38‐hHER2 cells and MC38‐hHER2 STING knockout (MC38‐hHER2‐STING‐KO) cells (Figure S3A, B) were prepared to establish different transplantation tumor models.