CD8A and neoplasm: Next, we examined the immune cell populations in the mammary glands of WT FVB mice and tumor tissues implanted with parental HP cells, OE-Smyd3-HP cells, OE-Smyd3/sgShcbp1-HP cells, or sgSmyd3-HP cells by CyTOF analysis with antibodies against CD8 and CD4 for T cells and Cd11b, Ly6G, and Ly6C for MDSCs.