The density of CD68+ macrophages in the tumor-adjacent prostate tissue correlated with tumor size for all three tumor-types (G; Rs = 0.89, P<0.05, n = 13, AT-1; Rs = 0.76, P<0.05, n = 29, and MatLyLu; Rs = 0.69, P<0.05, n = 17) (Fig 1B and 1C) but MatLyLu was most effective in stimulating this macrophage infiltration (Fig 1C). The gene discussed is CD68; the disease is neoplasm.