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. 2023 Jan 16;9(2):e13048. doi: 10.1016/j.heliyon.2023.e13048

Fig. 2.

Fig. 2

Kaplan-Meier curves for overall survival (OS) of metastatic colorectal cancer patients. (A) PD-L1 expression in primary tumours(P) and paired distant metastases(M) does not affect overall survival; (B) High CD8 lymphocytes infiltration in primary tumours(P) or paired distant metastases(M) predicts a good prognosis; (C) In high CD8 lymphocytes infiltration group, PD-L1 positive expression in primary tumours predicts a worse prognosis; (D) In low CD8 lymphocytes infiltration group, PD-L1 expression in primary tumours does not affect overall survival; (E) CD8 TIL infiltration in primary tumours were independently predictive factors for overall survival.