To determine the binding affinity of GST-BCL-2 family proteins to the FITC-conjugated BH3 domain of BIM (FITC-Ahx-DMRPEIWIAQELRRIGDEFNAYYAR), FPAs are performed as follows. Briefly, 100 nM of GST-BCL-2 family fusion proteins are incubated with serial dilutions of ABT-737 in PBS for 2 min. Then, 20 nM of FITC-BIM BH3 peptide (FITC-Ahx-DMRPEIWIAQELRRIGDEFNAYYAR) is added. Fluorescence polarization is measured using an Analyst TM AD Assay Detection System after 10 min using the 96-well black plate. IC₅₀s are determined using GraphPad Prism software.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cells are treated with ABT-737, ABT-263, or vehicle (DMSO) for 4 h in XF24 assay medium (6×10⁴ MCF10A cells, see medium composition below) or RPMI 1640 medium (1×10⁶ B-cell lymphoma cells) and apoptosis is analyzed by Annexin-V-binding/PI exclusion or by sub-diploid nuclei determination. FACS analysis is performed on Becton Dickinson FACScan or FACScalibur instruments. Data analysis is performed with CellQuest software.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

For intraperitoneal (i.p.) administration, 1 g/mL stock solution of ABT-737 in DMSO is added to a mixture of 30% propylene glycol, 5% Tween 80, 65% D5W (5% dextrose in water) (pH 4−5; final concentration of DMSO ≤ 1%). Mice injected with FD/ΔRaf-1:ER cells are treated with either ABT-737 (20 and 30 mg/kg/mouse every day i.p. for 21 days starting on day 1 post-cell injection (n=9-10 mice per group) or vehicle or left untreated (control); mice injected with human KG-1 cells are treated with 30 mg/kg ABT-737 starting on day 18 post-cell injection. For noninvasive imaging of FD/ΔRaf-1:ER-luc cells, anesthetized mice are injected with 150 mg/kg of D-luciferin and placed for imaging in the In Vivo Imaging System with total imaging time of 2 min.

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Sun XP, et al. ABT-737 Synergizes with Arsenic Trioxide to Induce Apoptosis of Gastric Carcinoma Cells In Vitro and In Vivo.J Int Med Res. 2012;40(4):1251-64.

  [2]. Clerc P, et al. Polster BM.Rapid Detection of an ABT-737-Sensitive Primed for Death State in Cells Using Microplate-Based Respirometry.PLoS One. 2012;7(8):e42487. Epub 2012 Aug 3.

  [3]. Konopleva M, et al. Mechanisms of apoptosis sensitivity and resistance to the BH3 mimetic ABT-737 in acute myeloid leukemia. Cancer Cell. 2006 Nov;10(5):375-88.

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852808-04-9

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