Immunohistochemistry of tumor masses arising from parental and scrambled CT26 cells showed a dense infiltrate of lymphocytes, stained with anti-CD45 antibodies (Figure 6A, left panel, and Figure 6B), and macrophages, stained with anti-F4-80 antibodies (Figure 6A, right panel, and Figure 6B). Here, PTPRC is linked to neoplasm.