Combination of M1 and
Avo B inhibit FAO, a process essential to
synergy. FAO-supported respiration was measured as the OCR with palmitoylcarnitine
and malate in permeabilized OCI-AML2 (A) or OCI-AML3 (B) cells using
high-resolution respirometry. Cells were incubated for 1 h with a
1 μM M1, 2 μM AvoB, the combination, or a vehicle control
(DMSO). Data are mean ± SD; *p < 0.05, **p < 0.01, ***p < 0.005, ****p < 0.001; one-way ANOVA, Dunnett’s post
hoc test. Heat map window concentrations of M1 and Avo B
were incubated in TEX (C) or T30R (D) leukemia cell lines, the latter
of the two is Avo B-resistant (and subsequently, resistant to Avo
B-induced FAO inhibition). Cell viability was measured after 72 h
by flow cytometry using 7AAD. All experiments were n = 3. Data are mean ± SD; *p < 0.05, **p < 0.01, ***p < 0.005, ****p < 0.001; one-way ANOVA, Dunnett’s post
hoc test.