https://www.selleckchem.com/
Specific inhibitors of protein phosphatase 2A (PP2A) mediate anticancer effects by augmenting the tumor-killing activity of natural killer (NK) cells. In this study, new PP2A inhibitors, aminocytostatins A-E, were isolated from Kitasatospora sp. MJ654-NF4 and structurally characterized. Aminocytostatins are derivatives of cytostatin, which is a specific PP2A inhibitor isolated from the same organism, and aminocytostatins have a characteristic amino group within the lactone moiety. Compared to cytostatin, aminocytostatin A showed a stronger inhibitory activi
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