CD8A and pancreatic adenocarcinoma: Gene expression analysis indicated that the pancreatic adenocarcinoma group with a good prognosis showed higher levels of the following cell types compared to the group with a worse prognosis (Figs 3–5): CD45-expressing cells, Tregs, DCs, macrophages, NK CD56dim cells, T cells, exhausted CD8+ cells, cytotoxic cells, mast cells, CD8+ T cells and neutrophils (Figs 3 and 4).