PPBP and neoplasm: Expression of the chemokines Cxcl7 (Supplemental Figure 2C) and Ccl5 (Supplemental Figure 2D) was significantly elevated, and Cxcl2 (Supplemental Figure 2A) and Cxcl12 (Supplemental Figure 2B) trended upward in H1792ΔSTK11 tumors compared with control tumors when using mouse primers, concordant with the observed changes in tumor immune cellularity and consistent with host responses.