NAMPT activator (NAT-5r) is a potent, small molecule activator of nicotinamide phosphoribosyltransferase (NAMPT) with ITC KD of 180 nM, 3-fold improved activity over NAT.NAMPT activator (NAT-5r) had no effect on NMNAT1 enzyme activity, both NAMPT mutants of K189R and K189A reduced the binding affinity of NAT-5r.NAMPT activator (NAT-5r) treatment significantly enhanced NAD content in NAMPT-WT cells, but not in NAMPT-CRISPR cells.Treatment of NAT-5r at 3 μM concentrations for 4 h induced significant elevation of cellular NAD.NAMPT activator (NAT-5r) induced subsequent metabolic and transcriptional reprogramming, promoted proliferation and maintain the self-renewal of NSCs and protects peripheral sensory neurons from paclitaxel-(PTX) induced damage in mouse model.
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