Fig. 6.
Blockage of lysis of the myeloma cell line U266 by anti–MHC class I antibodies.
For blocking experiments, 51Cr-labeled U266 tumor cells were incubated for 30 minutes with an anti–MHC class I antibody (clone W6/32) or a mouse IgG isotype control antibody at a final concentration of 50 μg/mL.