Serum CD4 Is Associated with the Infiltration of CD4⁺T Cells in the Tumor Microenvironment of Gastric Cancer

Figure 2

Immunohistochemistry of CD4⁺T, CD8⁺T, and CD19⁺B cells in GC paraffin sections. The positive part was marked red by Image-Pro Plus. (a) High infiltration of CD4⁺T cells. (c) Low infiltration of CD4⁺T cells. (e) High infiltration of CD8⁺T cells. (g) Low infiltration of CD8⁺T cells. (i) High infiltration of CD19⁺B cells. (k) Low infiltration of CD19⁺B cells.

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