Since DCs—independent of the Flt3 signal—were sufficient to induce asthma upon OVA challenge in Flt3 KO mice, we hypothesized that Flt3-independent DCs (DCs from Flt3 KO mice) could better induce type 2 immune responses than Flt3-dependent DCs (DCs from WT mice). This evidence concerns the gene FLT3 and asthma.