Figure 2.
Recognition of BB49-SCCHN by CTL 121 is inhibited by anti-HLA-B,C mAb. 1,500 CTL were incubated with 20,000 BB49-SCCHN in microwells for 4 h without mAb (medium) or in the presence of either mAb W6/32 (anti-HLA–class I), B1.23.2 (anti-HLA-B,C), BB7-2 (anti-HLA-A2), or 2B6 (anti-HLA-DR). TNF production was estimated by testing the toxicity of the supernatant for TNF-sensitive WEHI-164.13 cells.