PDGFRB and gastric cancer: To further validate apoptosisScore in GC, we measured the six ARG protein levels by immunohistochemistry, and the result showed that compared with normal group, the CAPN11, FLT1, FLT4, NOS3, PDGFRB, and TGFBR1 levels were significantly higher in GC group (Figures 10A–F).