Fig. 3

HLA expression in immune cell populations, platelets and pancreatic islets. Neutrophils show the highest and platelets the lowest classical HLA class I expression. HLA class II is most abundant in myeloid dendritic cells (myeolid DCs) and B cells. HLA-E – and to a lesser extent – HLA-F are ubiquitously expressed with the lowest abundance in pancreatic islets and platelets. HLA-G transcripts are found in pancreatic islets only