Nicotinamide riboside modulates the reactive species interactome, bioenergetic status and proteomic landscape in a brain-region-specific manner

Alejandro Marmolejo-Garza, Laurent Chatre, Deborah L. Croteau, Alejandro Herron-Bedoya, Minh Danh Anh Luu, Benoit Bernay, Julien Pontin, Vilhelm A. Bohr, Erik Boddeke, Amalia M. Dolga*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

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Nicotinamide riboside (NR), a precursor of nicotinamide adenine dinucleotide (NAD+), has robust cognitive benefits and alleviates neuroinflammation in Alzheimer's Disease (AD) mouse models without decreasing beta-amyloid plaque pathology. Such effects may be mediated by the reactive species interactome (RSI), at the metabolome level. In this study, we employed in vitro and in vivo models of oxidative stress, aging and AD to profile the effects of NR on neuronal survival, RSI, and the whole proteome characterization of cortex and hippocampus. RSI analysis yielded a complex modulation upon NR treatment. We constructed protein co-expression networks and correlated them to NR treatment and all measured reactive species. We observed brain-area specific effects of NR on co-expressed protein modules of oxidative phosphorylation, fatty acid oxidation, and neurotransmitter regulation pathways, which correlated with RSI components. The current study contributes to the understanding of modulation of the metabolome, specifically after NR treatment in AD and how it may play disease-modifying roles.

Originele taal-2English
Artikelnummer106645
Aantal pagina's13
TijdschriftNeurobiology of Disease
Volume200
DOI's
StatusPublished - 1-okt.-2024

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