CCL2 and neoplasm: In parallel, CCL2 immunostaining scoring in 10 TPAC mice showed that the nerves scored again highest when compared with acinus (P ˂ 0.0001), tumor (P ˂ 0.0001), immune cells (P ˂ 0.0001), and fibroblasts (P ˂ 0.0001) (Supplemental Figure 7, A–C).