There was a higher percentage of total Ki67+ PanCK+ proliferating tumor cells in closer proximity to pro-tumorigenic F4/80+ CD206+ macrophages in MIC β1 integrin-deficient recurrent tumors than in MIC WT tumors while the same analysis for non-proliferating tumor cells do not differ (Fig. 3h, i). Here, MKI67 is linked to neoplasm.