Figure 4.

CD8+ T cells were closely associated with tumor relapse. Comparison of CD8-positive lymphocytes (A) and PD-L1 positivity (B,C) in STS between new diagnosed and recurrent patients. Comparison of CD8-positive lymphocytes (D) and PD-L1 positivity (E,F) in STS between the 1st and 2nd surgery according to patients who were re-recurrent or not after the 2nd surgery. PD-L1, programmed cell death ligand 1; PD-L1(T), PD-L1 in tumor cells; PD-L1(L), PD-L1 in lymphocytes; STS, soft tissue sarcomas.