Additional file 7: Figure S6. BET Bromodomain Inhibition Downregulates PD-L1 and HLA-ABC in DU145 and PC3 xenograft tumors. C. Summary of flow cytometry data for PD-L1 staining in ex-vivo DU145 and PC3 tumors, gated on Live CD45− cells. N = 6 mice / iteration, repeated × 2. D. Summary of flow cytometry data for HLA-ABC staining in ex-vivo MC38OVA tumors gated on Live CD45− cells. N = 6 mice / iteration, repeated × 2.