Decitabine (NSC 127716) Decitabine (NSC 127716, Deoxycytidine, Dacogen, 5-aza-2-deoxycytidine, 5-AZA-dC, 5-aza-CdR) is a DNA methyltransferase inhibitor, incorporating into DNA and resulting in hypomethylation of DNA and intra-S-phase arrest of DNA repl In vitro
Decitabine inhibits cell growth in a dose and time-dependent manner with IC50 of approximately 438 nM and 43.8 nM for 72 hours and 96 hours exposure in HL-60 and KG1a leukemic cells, respectively. A recent study shows that Decitabine exhibits high anti-proliferative and pro-apoptotic activity against anaplastic large cell lymphoma (ALCL), and inhibits [3H]–thymidine uptake in KARPAS-299 cells with EC50 of 0.49 μM.
In vivo
In a ALK+ KARPAS-299 murine xenograft model, Decitabine at a dose of 2.5 mg/kg causes increased apoptosis and reduced proliferation of tumor cells, and also results in demethylation of tumor suppressor p16INK4A. Cell Data
