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Synonyms: 3,14-Dihydroxy-5,20(22)-bufadienolide, 5,20(22)-Bufadienolide-3,14-diol Bufalin is cardioactive steroid that exhibits a variety of biological activities, such as cardiotonic, anaesthetic, blood pressure stimulatory, respiratory and antineoplastic effects. Acts as a specific Na/K-ATPase inhibitor. More potent than ouabain. Induces cell differentiation. Induces apoptosis in U937 and HL-60 cells by activation of AP-1 via a MAPK pathway that involves JNK. Regulates Tiam1 gene. Down regulates expression of 14-3-3 protein
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