CXCL8 and gastric cancer: Many studies have pointed out that H. pylori infection can cause the abnormal expression of inflammatory cytokines IL‐6, IL‐8, and CXCL‐1, participate in the production and regulation of intestinal inflammatory diseases, and promote the development of gastric ulcer and even gastric cancer (Deng et al., 2021; Murni et al., 2018).