CD274 and neoplasm: The results from our in vitro experiments indicating that SDFZ‐8 upregulates PD‐L1 expression in MC38 cells (Figure 4D) were consistently reflected in the in vivo experiment, where treatment with SDFZ‐8 led to an upregulation in the expression of PD‐L1 in tumor‐infiltrating immune cells (DCs and macrophages) (Figure 5D).