a) Leukemia-free survival of mice transplanted with control (Ctrl) or MLL-Af4 transduced HSPCs from WT or Igf2bp3 KO mice (Kaplan-Meier method with Log-rank test; ****P < 0.0001).
b) Overall survival of mice transplanted with Ctrl or MLL-Af4 transduced HSPCs from WT or I3KO mice (n=12 WT/Ctrl, n=24 WT/MLL-Af4, n=7 I3KO/Ctrl, n=22 I3KO/MLL-Af4; Kaplan-Meier method with Log-rank test; ****P < 0.0001).
c) Time course of WBC in the PB of mice transplanted with Ctrl or MLL-Af4 transduced HSPCs from WT or I3KO mice (Data represented as means of three experiments; n=4 Ctrl, n=8 MLL-Af4 per experiment).
d) Spleen weights of mice transplanted with Ctrl or MLL-Af4 transduced HSPCs from WT or I3KO mice at 14 weeks (n=4 Ctrl, n=8 MLL-Af4; one-way ANOVA followed by Bonferroni’s multiple comparisons test; ****P < 0.0001).
e) H&E staining of liver and spleen of mice transplanted with mice transplanted with MLL-Af4 transduced HSPCs from WT or I3KO mice at 14 weeks. Scale bar:100 microns; CV=Central vein; W=White pulp; R=Red pulp; Leu= Leukemia; arrows showing infiltration.
f) Quantitation of CD11b+Ki67+ cells in the spleen at 14 weeks post-transplantation (n= 4 Ctrl, n=8 MLL-Af4; one-way ANOVA followed by Bonferroni’s multiple comparisons test; *P < 0.05).
g) (Left) Number of CD11b+ in the SP of recipient mice that received Ctrl or MLL-Af4 transduced HSPCs from WT or I3KO mice at 14 weeks (one-way ANOVA followed by Bonferroni’s multiple comparisons test; **P < 0.01). (Right) Corresponding representative FACS plots showing CD11b+ and B220+ cells in the SP.