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. 2013 Apr 8;8(4):e61167. doi: 10.1371/journal.pone.0061167

Figure 4. Cytotoxic effects of anti-ROR1 mAbs in the presence of NK cells (ADCC).

Figure 4

Frequency (%) (mean+SEM) of apoptotic/necrotic cells (Annexin-V+/PI+) induced by 4 anti-ROR1 mAbs and a non-relevant isotype control mAb (mouse IgG1 isotype) in the presence of NK cells at different target: effector ratios. Target cells: ESTDAB049 (□), 075 (Inline graphic), DFW (▪), A375 (Inline graphic) (A) and ESTDAB081 (□), 094 (Inline graphic), 112 (▪) melanoma cells and T47D (Inline graphic) as a ROR1 negative cell line (B). ADCC of the melanoma cells induced by the anti-ROR1 mAbs compared to the non-relevant isotype control mAb (mouse IgG1 isotype) as wells as to the T47D cell line was statistically significant (P = 0.05-0.0001).