Residual Tumor Resection After Anti-PD-1 Therapy: A Promising Treatment Strategy for Overcoming Immune Evasive Phenotype Induced by Anti-PD-1 Therapy in Gastric Cancer.

In the present study, we showed a trend toward increased expression of CEACAM-1 and CD155 on tumor cells after anti-PD-1 therapy in patients with unresectable advanced or recurrent G/GEJ cancer ( p = 0.059 and p = 0.093, respectively) ( Figure 5 g,h).

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