Anti‐CD24 did not show any activity in CD24− cancer cell line (Figure S4C), whereas phagocytosis was restored in co‐culture conditions with all the panels of CD24+ MCL cell lines (Figure 2A,B), confirming a direct correlation between the rate of phagocytosis (expressed as delta—normalized phagocytosis, difference between anti‐CD24 and IgG1 isotype control in terms of normalized phagocytosis) and CD24 antigen surface density (Figure 2C). The gene discussed is CD24; the disease is cancer.