Title : A Cell-Permeant Mimetic of NMN Activates SARM1 to Produce Cyclic ADP-Ribose and Induce Non-apoptotic Cell Death.

Pub. Date : 2019 May 31

PMID : 31128467






10 Functional Relationships(s)
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1 A Cell-Permeant Mimetic of NMN Activates SARM1 to Produce Cyclic ADP-Ribose and Induce Non-apoptotic Cell Death. Cyclic ADP-Ribose sterile alpha and TIR motif containing 1 Homo sapiens
2 SARM1, an NAD-utilizing enzyme, regulates axonal degeneration. NAD sterile alpha and TIR motif containing 1 Homo sapiens
3 We show that CZ-48, a cell-permeant mimetic of NMN, activated SARM1 in vitro and in cellulo to cyclize NAD and produce a Ca2+ messenger, cADPR, with similar efficiency as NMN. Camptothecin-20-O-propionate sterile alpha and TIR motif containing 1 Homo sapiens
4 We show that CZ-48, a cell-permeant mimetic of NMN, activated SARM1 in vitro and in cellulo to cyclize NAD and produce a Ca2+ messenger, cADPR, with similar efficiency as NMN. NAD sterile alpha and TIR motif containing 1 Homo sapiens
5 CZ-48 activated SARM1 via a conformational change of the auto-inhibitory domain and dimerization of its catalytic domain. Camptothecin-20-O-propionate sterile alpha and TIR motif containing 1 Homo sapiens
6 Both catalyzed similar set of reactions, but SARM1 had much higher NAD-cyclizing activity, making it more efficient in elevating cADPR. NAD sterile alpha and TIR motif containing 1 Homo sapiens
7 CZ-48 acted selectively, activating SARM1 but inhibiting CD38. Camptothecin-20-O-propionate sterile alpha and TIR motif containing 1 Homo sapiens
8 In SARM1-overexpressing cells, CZ-48 elevated cADPR, depleted NAD and ATP, and induced non-apoptotic death. NAD sterile alpha and TIR motif containing 1 Homo sapiens
9 In SARM1-overexpressing cells, CZ-48 elevated cADPR, depleted NAD and ATP, and induced non-apoptotic death. Adenosine Triphosphate sterile alpha and TIR motif containing 1 Homo sapiens
10 CZ-48 is a specific modulator of SARM1 functions in cells. Camptothecin-20-O-propionate sterile alpha and TIR motif containing 1 Homo sapiens