Cayman 6(5H)-Phenanthridinone

6(5H)-Phenanthridinone is an inhibitor of poly(ADP-ribose) polymerase 1 (PARP1) and PARP2 (EC₅₀s = 10.2 and 36.3 μM, respectively, in yeast cells expressing the human enzymes).¹ It decreases radiation-induced PARP activity and proliferation of RDM4 murine lymphoma cells when used at a concentration of 50 μM.² 6(5H)-Phenanthridinone reduces NF-κB-induced transcription of the genes encoding TNF-α, IL-2, and IFN-γ in rat lymphocytes.³ In vivo, 6(5H)-phenanthridinone (60 mg/kg) reduces spinal cord expression of inducible nitric oxide synthase (iNOS), IL-1β, TNF-α, IL-2, and IFN-γ and reduces disease score in a rat model of experimental autoimmune encephalomyelitis (EAE). It also decreases serum levels of lactate dehydrogenase as well as hepatic lipid peroxidation, oxidative DNA damage, and PARP levels in a mouse model of carbon tetrachloride-induced hepatotoxicity when administered at a dose of 10 mg/kg.⁴

WARNING This product is not for human or veterinary use.