Menin inhibition enhances graft-versus-leukemia effects by T-cell activation and endogenous retrovirus induction in AML

Fetsch V, Schwöbel L, Ozyerli-Goknar E, Stell AV, Punta M, Plenge T, Klaus T, Gupta MK, Andrieux G, Shoumariyeh K, Pfeiffer S, Corrales E, Schlenke L, Baniadam H, Brandl SM, Andreis M, Remen M, Hartmann A, Grueter K, Zwick M, Köhler N, Kuban M, Metzger E, Rummelt C, Duyster J, Boerries M, Hofmann M, Färber J, Braun LM, Zähringer A, Lübbert M, Toffalori C, Vago L, Heidel FH, Minguet S, Apostolova P, Feuchtinger T, Maas-Bauer K, Blaeschke F, Kühn MWM, Timmers HTM, Wertheimer T, Perner F, Zeiser R.

Blood. 2026; doi: 10.1182/blood.2025029712.

We found that menin inhibition induced class II transactivator and major histocompatibility complex II (MHC-II) expression in KMT2A-rearranged and NPM1-mutated AML cells in vitro and in vivo. Increased MHC-II expression sensitized AML cells to T-cell-mediated elimination after allo-HCT in mice.