ANXA5 and neuroblastoma: Flow cytometry analysis of Annexin-V positively stained apoptotic cells showed that JQ1 and nanaomycin synergistically induced apoptosis in 39% BE(2)-C (R = 0.64, fractional product method) and 59% Kelly (R = 0.37, fractional product method) neuroblastoma but not WI38 fibroblast cells (< 6%) (Figure 2C and Supplementary Figure S2).