There was no significant difference of frequencies of tumor-B cells (CD45+ CD3- CD11b- CD355- CD19+), Myeloid cells (CD45+ CD3- CD11b+) and Macrophages (CD45+ CD11b + CD11c- Ly6G- Ly6C-F4/80+) between CT-26 and Colon 26 tumor tissues (Additional file: Fig. S3). Here, CD19 is linked to neoplasm.