CD33 and acute monocytic leukemia: Similarly, THP-1 (human acute monocytic leukemia) and MOLM-13 (human acute myeloid leukemia) cell line were used to evaluate the binding of CD33-scFv-Nluc, while MM1S (multiple myeloma) and U266 (multiple myeloma) cell lines were used to assess the binding of BCMA-scFv-Nluc, CD138-scFv-NLuc and CS1-Nluc Malibu-Glo reagents.