CD19 and neoplasm: Finally, we investigated the infiltration of other immune-cell types into the tumour by means of flow-cytometry analysis of the presence of macrophages (F4/80+CD11b+ cells), dendritic cells (DCs) (MHC-II+CD11c+ cells), B cells (CD19+CD11b+ cells), and neutrophils (CD11b+Ly6G+ cells).