FLT3LG and neoplasm: The benefit of combining a COX2i with FLT3L or 5-AZA was even more substantial in the YUMM3.3 RTT model, in which COX2i + ICB had modest effects, but the addition of FLT3L or 5-AZA induced tumour control and significantly improved survival (Fig. 5e and Extended Data Fig. 11b–e).