PVR and neoplasm: Administration of anti-PD-L1 antibodies to isolated, tumour antigen-experienced CCR7+ BMDC in vitro did not alter their phenotype, but the addition of recombinant IFNγ upregulated expression of OX40L, PVR and CD40, consistent with the activated Ccr7_DC.2 state (Supplementary Fig. 10j).