GPP78 is a potent inhibitor of Nampt (IC50: 3.0 nM for nicotinamideadenine dinucleotide (NAD) depletion). GPP78 is cytotoxic to neuroblastoma cell line SH-SY5Y cells (IC50: 3.8 nM by inducing autophagy). GPP78 has anti-cancer and anti-inflammatory effect
NADP+ is the oxidized form of the electron donor nicotinamideadenine dinucleotide phosphate . It serves as a cofactor in various biological reactions. In addition, the balance between these reduced and oxidized forms plays key roles in diverse cellular functions, including cell survival, the maintenance of redox status, and intracellular signaling. For example, binding of NADP+ to β-subunits of Kv channels activates ion transport, whereas NADPH stabilizes channel inactivation. NADP+ is biosynthesized from NAD+ by NAD kinase, with ATP as the phosphoryl donor.