Figure 2. BH3 profiling predicts venetoclax sensitivity in primary BPDCNs.
(A) Basal BH3 profiling showing cytochrome c release in response to 100 μM BAD peptide stimulation (normalized to DMSO control) in primary BPDCNs from patients and from PDXs, AMLs, and normal bone marrow (NBM). (B) Basal BH3 profiling in response to 1 μM venetoclax, as in (A). (C) Dynamic BH3 profiling depicting the difference in overall apoptotic priming before and after exposure to 100 nM venetoclax for 4 hours. (D) Correlation of dynamic BH3 profiling delta priming with percent cell death by Annexin V/propidium iodide flow cytometry (Spearman r, and P values for correlation are shown).