Our data showed that the mRNA expression levels of the transcription factors RORα and GATA3, the receptors T1/ST2 and IL-17RB, surface markers CRTH2, and type 2 cytokines IL-33, IL-5, and IL-4 were significantly increased in PBMCs from patients with gastric cancer compared to healthy controls. Here, IL17RB is linked to gastric cancer.