S226: LOSS OF NR4A1 IS ASSOCIATED WITH HIGHER EXPRESSION OF IMMUNE CHECKPOINT COMPONENTS AND REDUCED T CELL-MEDIATED LYMPHOMA CELL KILLING IN AGGRESSIVE LYMPHOMA - K. Pansy; K. Fechter; A. Arra; M. Szmyra; S. Haingartner; A. Ramsay; H. Greinix; C. Beham-Schmid; P. Neumeister; A. Deutsch (HemaSphere, 2022)