Figure 2.
Cytotoxicity of NW38-IVS-1 against NY-ESO-1+ and NY-ESO-1− cell lines. Specific lysis of the autologous NY-ESO-1+ melanoma cell line NW-MEL-38, and the NY-ESO-1+/HLA-A2+ allogeneic melanoma cell lines SK-MEL-37 and MZ-MEL-19 was observed. The NY-ESO-1+ MHC class I- melanoma cell line SK-MEL-19, the NY-ESO-1− HLA-A2+ melanoma cell line NW-MEL-145, K562, and NW38 PHA blasts used as controls were not lysed. Values represent the specific lysis of 51Cr-labeled target cells (E/T ratios: 90 [solid], 30 [checkered], 10 [striped], and 1:1 [open], as assessed by a standard 51Cr-release assay.