CD19 and neoplasm: Among tumor-infiltrating immune cells, Friebel et al. (2020) identified T cells (CD3+), B cells (CD19+HLA-DR+), NK cells (CD56+CD16+), neutrophils (CD66b+), two subsets of classical DCs: cDC1 (CD141+CADM1+) and cDC2 (CD1c+) plasmacytoid DCs: pDCs (CD123+), and plasma cells (CD19+, CD38high).