The expression of NUPR1 was highly correlated with tumor‐associated macrophage markers including C‐C motif chemokine ligand 2 (CCL2, R = 0.392, p < 0.001), C‐C chemokine receptor type 5 (CCR5, R = 0.323, p < 0.001), CD80 (R = 0.302, p < 0.001), and CD86 (R = 0.381, p < 0.001) (Figure 9E). Here, CCL2 is linked to neoplasm.