Application and challenge of immunotherapy in perioperative therapy of gastric cancer

Gastric cancer is one of the common malignant tumors of digestive system in our country. The proportion of patients in advanced and late stage is large, and the choice of perioperative treatment program is always difficult in clinic. For most locally advanced gastric cancer, compared with standard radical surgery combined with postoperative adjuvant chemotherapy, perioperative treatment mode may further improve the survival of patients. However, the efficacy of conventional chemotherapy regimen has reached a plateau, while the progress of traditional molecular targeted therapy is relatively slow. In recent years, with the increasing role of immunotherapy in the treatment of advanced gastric cancer, more and more clinical studies have shown that immunotherapy can also achieve better efficacy in perioperative gastric cancer patients. This article reviewed the research progress of immunotherapy in perioperative gastric cancer in recent years.