Immune protein IL-17A responsible for lethal side effects of gastric cancer

The formation of scar tissue, or fibrosis, as gastric cancer disseminates throughout the peritoneum can be more lethal than the cancer itself and can interfere with chemotherapy. Researchers from Kanazawa University have now found that proinflammatory cytokine IL-17A from mast cells heavily influences the degree of fibrosis and causes structural changes in peritoneal cells. Preventing mast cells from releasing IL-17A may therefore be a promising treatment strategy for gastric cancer patients with peritoneal dissemination.