Aberrant RNA splicing and mutations in spliceosome complex in acute myeloid leukaemia (AML) are frequent. It have been shown that some splicing variants had a prognostic value in AML.

AML are characterized by their propensity to relapse because of the persistence of leukaemia initiating cells (LICs).

The aim of this study is to determine the splice variants on AML initiator cells and define a splicing pattern.

Inclusion Criteria:

• Age ≥ 18 years-old
• Patients treated at the south lyon hospital center
• Patients with a diagnosis of acute myeloid leukemia confirmed in cytology and whose involvement of the 11q23 locus was confirmed by in situ hybridization
• Patients for whom a sample is available in the cytogenetic laboratory of the south lyon hospital center

Exclusion Criteria:

None

Patients with 11q23 acute myeloid leukaemia