TRAF1 and Ewing sarcoma: With regard to clinical relevance, MEF3-related genes TRAF1 and TNFSF9, as well as direct cis-targets of DiPRO1 (Dataset EV1A,B) that transcriptionally respond to DiPRO1 KD in RMS and Ewing sarcoma cells in vitro (Dataset EV3), were analyzed in biopsies of recurrent tumors.