FLT3LG and neoplasm: cDC1s were obtained from B16-FLT3L tumor-grafted WT and C57BL/6H2Kbm1 (H-2Kbm1) mice, which harbor a mutation in the H-2K MHC-I molecule preventing the presentation of OVA257–264 peptide [42] (Fig. 3a).