Comparison of blast proliferation by cell cycle analysis using PI labelling and PKH67 labelling (PKH fluorescence intensity (a.u.)at Day 0 / PKH fluorescence intensity (a.u.)at Day 4) in 7 AML patients stimulated or not by mixture of cytokines and incubated with a tetrapeptide AcSDKP (amide or not). Here, PDXK is linked to acute myeloid leukemia.