CCR7 and neoplasm: Co-culture of FACS-sorted tumour-antigen (Ova)-experienced CCR7+ BMDC with naïve Ova-specific CD8+ T cells (OT-I) for 3 days (Fig. 5g) led to OT-I proliferation, which was not observed unless DCs were exposed to Ova (Supplementary Fig. 10d–f).