The results of the flow cytometry analysis showed that compared to IMM01 (SIRPα Fc fusion protein), all CD38/CD47 BsAbs had a greater ability to bind to CD38+ tumor cell lines in a concentration-dependent manner, and the binding ability of 35G5 and 12C10 was greater than that of the other BsAbs (Figures 4B–F). Here, CD38 is linked to neoplasm.