Figure 1From: Density of CD4(+) and CD8(+) T lymphocytes in biopsy samples can be a predictor of pathological response to chemoradiotherapy (CRT) for rectal cancerImmunohistochemical detection of CD4(+)and CD8(+) T cells in biopsy samples of rectal cancer before CRT. Tissue sections of biopsy samples were immunostained with anti-CD4 (A,C) or anti-CD8 (B,D) mAb. ×100 (A,B), ×400 (C,D) Arrow: 100 μm.Back to article page