CXCL5, known as a ligand for CXCR2, has been widely reported as an effective chemoattractant for MDSCs.[22] Further analysis of scRNA‐seq data for orthotopic pancreatic tumors of mice unveiled that cancer epithelial cells predominantly served as the primary producers of CXCL5 (Figure 6F). Here, CXCR2 is linked to pancreatic neoplasm.