FOS and neoplasm: Resting tumour cDC1s included cluster 5 enriched in transcripts involved in the unfolded protein response (UPR) such as Creld2, Hspa5, and Pdia6, as well as the clusters 2, 3 and 6 that expressed transcripts such as Fos, Jun, and Dusp1 and cluster 0 that expressed H2afz, Lyz2, Sub1 (Figures 2C,D; Table S1).