MMRN1-EGFR drives sialylglycan-Siglec immune evasion in AML leukemia stem cells. (PubMed, Cell Stem Cell)
In a clinical trial (ChiCTR2500097714), erlotinib (an EGFR inhibitor) combined with azacitidine plus the HAG regimen, which consists of homoharringtonine, a low dose of cytarabine, and granulocyte colony-stimulating factor priming, achieves a remission rate of 75% in relapsed/refractory AML, likely via MMRN1/EGFR axis blockade. Our findings establish MMRN1 as a dual-functional target for LSC maintenance and immune evasion and propose that disrupting MMRN1 or EGFR remodels the immunosuppressive tumor microenvironment, offering a promising strategy for AML immunotherapy.