To accomplish this, WT, dHET, and dKO mice were intracranially inoculated with GL261 cells, and upon tumor formation, the mice were injected intravenously with a cocktail of fluorescent Lycopersicon lectin (far red) and anti-CD8α antibody [phycoerythrin (PE)] to simultaneously highlight blood vessels and T cells, respectively (Fig. 5E). This evidence concerns the gene CD8A and neoplasm.