HMGA2 and acute myeloid leukemia: To clarify the molecular mechanism downstream of miR‐515‐5p during the development of AML, the TargetScan (www.targetscan.org) was used to predict the direct target of miR‐515‐5p, and the results showed that 3’‐UTR of HMGA2 gene bound with miR‐515‐5p (Figure 5A).