Irsogladine (Dicloguamine) is an orally active gastric mucosal protective agent. Irsogladine inhibits breast cancer recurrence and lung metastasis in nude mice. Irsogladine inhibits the transcriptional activities of NF-kappaB and AP-1, suppresses the activities of PDE and PDE4 to elevate intracellular cAMP levels, and activates TRPV1 and KATP channels. Irsogladine enhances iNOS expression, NO production, and the activation of cAMP-responsive elements. Irsogladine inhibits the development and progression of intestinal polyps in Apc-mutant mice. Irsogladine alleviates oxidative stress, increases gastric mucosal blood flow, and stimulates the production of endogenous prostaglandins. Irsogladine promotes insulin secretion in MIN6 cells. Irsogladine inhibits tumor angiogenesis, cancer cell proliferation, and the production of proinflammatory cytokines. Irsogladine exerts protective effects on astrocytes in ethanol/hydrochloric acid-induced gastric ulcers in mice. Irsogladine prevents colitis in IL-10 gene-deficient mice by reducing the production of IL-12 and IL-23. Irsogladine upregulates gap junction intercellular communication in pancreatic cancer cells via the PKA pathway. Irsogladine is applicable to research related to breast cancer, intestinal polyposis, gastric ulcer, spontaneous colitis, glioma, liver cancer, and pancreatic cancer[1][2][3][4][5][6][7][8].