No difference was observed in total splenic DC frequencies (Fig. S7F–H) in tumour-bearing or tumour-naïve mice, but we observed increased expression of co-stimulatory markers (MHC-II+, CD86+, CD40+) (Fig. S7I) in Fgl2−/− spleens of ID8-p53−/−Brca2−/− tumour-bearing mice, but not B16F10 (Fig. S7J). This evidence concerns the gene TP53 and neoplasm.