XBP1ΔcDC1IRE1trunc-cDC1 and XBP1ΔcDC1 mice showed normal tumor cDC infiltration in MC38 (Supplementary Figures 8A, B) and tumor cDC1s efficiently recombined loxP-flanked sites (Supplementary Figure 8C, D). The gene discussed is MPPE1; the disease is neoplasm.