DDX53 and neoplasm: RAW264.7 macrophages preferentially phagocytosed SeNps-treated CT26 cells when compared to the controls, untreated cells, evident by the increased ratio of the double positive fraction (CellBrite red for macrophages and CFSE for tumour cells) observed (40.7% in RAW264.7 + Se-CT26 compared to 26.4% in RAW264.7 + CT26) (Figure 8).