The bone marrow microenvironment of RAS pathway mutant B-ALL is enriched for immunosuppressive regulatory T cells
Mauricio Nicolás Ferrao Blanco, Bexultan Kazybay, Alicia Perzolli, Lennart A. Kester, Olaf T Heidenreich, Hermann Josef Vormoor
This study identifies an immunosuppressive bone marrow microenvironment in RAS-mutant B-ALL, enriched for regulatory T cells, and suggests CTLA-4 blockade could enhance T-cell-engager efficacy.
bioRxiv · Mar 18, 2026 · PreprintCancer Biology