Title : Extracellular signal-regulated kinase 1/2 regulates NAD metabolism during acute kidney injury through microRNA-34a-mediated NAMPT expression.

Pub. Date : 2020 Sep

PMID : 31873757






9 Functional Relationships(s)
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1 Extracellular signal-regulated kinase 1/2 regulates NAD metabolism during acute kidney injury through microRNA-34a-mediated NAMPT expression. NAD mitogen-activated protein kinase 3 Mus musculus
2 In this study, ERK1/2 regulation of cellular nicotinamide adenine dinucleotide (NAD) and PGC-1alpha were explored. NAD mitogen-activated protein kinase 3 Mus musculus
3 In this study, ERK1/2 regulation of cellular nicotinamide adenine dinucleotide (NAD) and PGC-1alpha were explored. NAD mitogen-activated protein kinase 3 Mus musculus
4 Inhibition of ERK1/2 activation during AKI in mice using the MEK1/2 inhibitor, trametinib, attenuated renal cortical oxidized NAD (NAD+) depletion. NAD mitogen-activated protein kinase 3 Mus musculus
5 Inhibition of ERK1/2 activation during AKI in mice using the MEK1/2 inhibitor, trametinib, attenuated renal cortical oxidized NAD (NAD+) depletion. NAD mitogen-activated protein kinase 3 Mus musculus
6 The rate-limiting NAD biosynthesis salvage enzyme, NAMPT, decreased following AKI, and this decrease was prevented by ERK1/2 inhibition. NAD mitogen-activated protein kinase 3 Mus musculus
7 In addition, ERK1/2 activation increased acetylated PGC-1alpha, the less active form, whereas inhibition of ERK1/2 activation prevented an increase in acetylated PGC-1alpha after AKI through SIRT1 and NAD+ attenuation. NAD mitogen-activated protein kinase 3 Mus musculus
8 These results implicate IR-induced ERK1/2 activation as an important contributor to the downregulation of both PGC-1alpha and NAD+ pathways that ultimately decrease cellular metabolism and renal function. NAD mitogen-activated protein kinase 3 Mus musculus
9 Inhibition of ERK1/2 activation prior to the initiation of IR injury attenuated decreases in PGC-1alpha and NAD+ and prevented kidney dysfunction. NAD mitogen-activated protein kinase 3 Mus musculus