CTLA4 and graft versus host disease: On the contrary, pathways related to immune function (i.e. GVHD Signaling, Communication between Innate and Adaptive Immune Cells, Crosstalk between Dendritic Cells and NK Cells, CTL-mediated Apoptosis, PRR in Recognition of Bacteria and Viruses, CTLA4 Signaling in CTL, Granzyme B Signaling) that were significantly different between dNK vs. pNK cells became more similar in idNK and dNK cells.