Figure 2C shows the level of expression of over 40 immune and pro-tumor genes by cells within each cluster, including a multitude of inflammatory cytokines/chemokines (IL1B, CXCL1, CXCL5, PPBP (CXCL7), CCL2, CXCL8), extracellular matrix components and modulators (FN1, COL23A1, VCAN, TGFBI, MMP9), and genes indicating altered lipid metabolism (APOE, APOC1, GPNMB, FABP5). This evidence concerns the gene MMP9 and neoplasm.