Fig. 2From: Clinical significance of serum-derived exosomal PD-L1 expression in patients with advanced pancreatic cancerRelationship between tumor PD-L1 expression and serum exoPD-L1 levels. (A) No linear correlation was observed between tissue PD-L1 CPS score and exoPD-L1 levels. (B) ExoPD-L1 levels were higher in patients with positive tissue PD-L1 expression compared to those with negative tissue PD-L1 expressionBack to article page