Inhibitory activity of anti-Nectin-2 mAbs on the proliferation of OV-90 cells. OV-90 cells were cultured in the presence of 30 μg/mL anti-Nectin-2 mAbs and poAb with 1% FBS for 6 days. The percentage inhibition of cell proliferation on the vertical axis is the mean ± S.D. of triplicate assays. *; antibodies that showed negative values for cell growth inhibition. #; antibodies that showed reproducible cell growth inhibition. NA; not assigned.