In another report, Hong et al. detected a mixed population of epithelial tumor cells, stromal cells, autologous tumor‐infiltrating lymphoid cells, and tumor‐infiltrating lymphoid cells in colorectal cancer PDOs using flow cytometry and confocal imaging, including CD3+ T cells, macrophage, endothelial cells, CD4+ T cells, CD8+ T cells, NK cells, and monocyte lineage.62 This evidence concerns the gene CD4 and neoplasm.