RS4;11 cells are seeded at 50,000 per well in 96-well plates and treated with compounds diluted in half-log steps starting at 1 μM and ending at 0.00005 μM. All other leukemia and lymphoma cell lines are seeded at 15,000-20,000 cells per well in the appropriate medium and incubated with Venetoclax or Navitoclax for 48 h. Effects on proliferation are determined using Cell TiterGlo reagent. EC₅₀ values are determined by nonlinear regression analysis of the concentration-response data. Mouse FL5.12-BCL-2 and FL5.12-BCL-XL cells are propagated and assessed. Bak^-/- Bax^-/- double knockout mouse embryonic fibroblasts are seeded into 96-well microtiter plates at 5,000 cells per well in DMEM supplemented with 10% FBS. Venetoclax (ABT-199) in the same culture medium is added in half-log dilutions starting at 5 μM. The cells are then incubated at 37°C (5% CO₂) for 48 h, and the effects on proliferation are determined using Cell TiterGlo reagent^[1].

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

Mice^[2]
Nonobese diabetic/severe combined immunodeficient γ (NSG) mice are injected at 6 weeks of age in the tail vein with 150 μL phosphate-buffered saline containing 5×10⁶ luciferase-labeled LOUCY cells. At regular time points, the bioluminescence is measured using the IVIS Lumina II imaging system. At 6 weeks, the cells are engrafted and the mice are randomly divided into 2 groups (with an equal number of males and females in both groups), and the treatment is started on day 0. Mice are treated with Venetoclax (ABT-199) 100 mg/kg body weight or with vehicle via oral gavage for 4 consecutive days. At days 0, 2, and 4 the bioluminescene is measured.

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

• [1]. Souers AJ, et al. ABT-199, a potent and selective BCL-2 inhibitor, achieves antitumor activity while sparing platelets. Nat Med. 2013 Feb;19(2):202-8.  [Content Brief]

  [2]. Peirs S, et al. ABT-199 mediated inhibition of BCL-2 as a novel therapeutic strategy in T-cell acute lymphoblastic leukemia. Blood. 2014 Dec 11;124(25):3738-47.  [Content Brief]

  [3]. Bi C, et al. Inhibition of 4EBP phosphorylation mediates the cytotoxic effect of mechanistic target of rapamycin kinase inhibitors in aggressive B-cell lymphomas. Haematologica. 2017 Apr;102(4):755-764.  [Content Brief]