FLT3LG and melanoma: Importantly, we further only used ex vivo isolated cDCs from unmanipulated mice, while previously published studies have only investigated the thymus‐homing and subsequent maturation of circulating cDCs by adoptively transferring sp‐DCs derived from donor mice that were exposed to Flt3L‐secreting B16 melanoma cells to expand the cDC population.17, 32