(A) Characteristics of the PDX lines.
(B–D) Percentage of human cells in the peripheral blood (B), bone marrow (C), or spleen weights (D) of PDX-engrafted mice treated sequentially with iCT (5 days of cytarabine 50 mg/kg + 3 days of doxorubicin 1.5 mg/kg i.v.) and/or Brequinar (BRQ, 25 mg/kg i.p.; given at day 2 after iCT), determined at day 4 after iCT. n = 4–5 mice per group. Data are represented as mean ± SEM. *p < 0.05, **p < 0.01, ***p < 0.001.