CT-1 is a secreted protein belonging to the IL-6 cytokine family. Overexpression of CT-1 enhances cell proliferation, migration and angiogenesis via the ADMA/DDAH pathway. CT-1 inhibits the growth of triple-negative breast cancer cells by simultaneously inducing Ferroptosis in N2-type tumor-associated neutrophils and cancer cells. CT-1 activates the Jak/STAT-3, p42/p44 MAPK and AMPK pathways, and inhibits GSK-3beta activity through phosphorylation to induce cardiomyocyte hypertrophy. CT-1 enhances the viability of cardiomyocytes and neurons, reduces cell Apoptosis, induces the expression of heat shock proteins (HSP) and BNP, and inhibits TNF levels. CT-1 exerts anti-tumor activity in mouse models of triple-negative breast cancer. CT-1 improves cognitive impairment in mice. CT-1 is applicable to the research of ischemic heart disease, triple-negative breast cancer, myocardial hypertrophy, Parkinsons disease, hypertensive heart disease, myocardial infarction, acute Chagas cardiomyopathy, high-fat diet-induced cognitive impairment and diabetes-related cognitive impairment[1][2][3][4][5].