Fig. 6From: CD137 agonist induces gastric cancer cell apoptosis by enhancing the functions of CD8+ T cells via NF-κB signalingA CD137 agonist significantly induced apoptosis in primary GC cells. a The purity of isolated tumor cells was detected using HE staining. b IHC confirmed the purity of isolated tumor cells. c The purity of an individual patient after tumor isolation is presented. Values are means with standard error of the mean. d Apoptosis of primary GC cells was detected using flow cytometry. e, f Quantification of primary GC cell apoptosis. Bars = mean ± SD. **P < 0.01 and ***P < 0.001Back to article page