The invention relates to the field of molecular
targeted therapy, and discloses an application of an SLC16A5 (MCT6) small-molecule inhibitor MCT6-Ai7-2 in preparation of a
medicine for treating acute
myeloid leukemia (AML). The inhibitor takes an SLC16A5
protein structure predicted by Alphafold as a target spot, and is obtained through compound
database screening, molecular docking and
druggability optimization. An in-vitro experiment proves that MCT6-Ai7-2 can remarkably inhibit proliferation of AML
cell lines such as U937 and MOLM-13, induce
cell apoptosis and retard a
cell cycle, has an inhibiting effect on a primary AML patient specimen and is relatively low in
toxicity to normal cells; in-vivo experiments show that the compound is effective and has good safety in AML model mice. In addition, the MCT6-Ai7-2 and the vinca can be combined to synergistically enhance the inhibition effect on vinca
drug-resistant cells, and by reducing the expression of anti-apoptotic
protein MCL-1, the activation of pro-apoptotic factors BIM and tBID is promoted to play a role. The invention provides a novel targeting
drug and strategy for treatment of AML (especially
drug-resistant or recurrent patients).