Cited by 242Sirtuins and Resveratrol in MedicineBiochemical and Molecular ResearchGut microbiota and health

Bacteria Boost Mammalian Host NAD Metabolism by Engaging the Deamidated Biosynthesis Pathway

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Shats, Igor, Williams, Jason G., Liu, Juan, Makarov, Mikhail V., Wu, Xiaoyue, Lih, Fred B., Deterding, Leesa J., Lim, Chaemin +12 more·2020·Cell Metabolism

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Abstract

Nicotinamide adenine dinucleotide (NAD), a cofactor for hundreds of metabolic reactions in all cell types, plays an essential role in metabolism, DNA repair, and aging. However, how NAD metabolism is impacted by the environment remains unclear. Here, we report an unexpected trans-kingdom cooperation between bacteria and mammalian cells wherein bacteria contribute to host NAD biosynthesis. Bacteria confer resistance to inhibitors of NAMPT, the rate-limiting enzyme in the amidated NAD salvage pathway, in cancer cells and xenograft tumors. Mechanistically, a microbial nicotinamidase (PncA) that converts nicotinamide to nicotinic acid, a precursor in the alternative deamidated NAD salvage pathway, is necessary and sufficient for this protective effect. Using stable isotope tracing and microbiota-depleted mice, we demonstrate that this bacteria-mediated deamidation contributes substantially to the NAD-boosting effect of oral nicotinamide and nicotinamide riboside supplementation in several tissues. Collectively, our findings reveal an important role of bacteria-enabled deamidated pathway in host NAD metabolism.

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  1. Lanao AE, and Pearson-Shaver AL. (2019). Mycoplasma Infections. In StatPearls (Treasure Island (FL)). 30725612

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Authors
Shats, I., Williams, J. G., Liu, J., Makarov, M. V., Wu, X., Lih, F. B., Deterding, L. J., Lim, C., Xu, X., Randall, T. A., Lee, E., Li, W., Fan, W., Li, J.-L., Sokolsky, M., Kabanov, A. V., Li, L., Migaud, M. E., Locasale, J. W., & Li, X.
Affiliations
  • National Institutes of Health (US)
  • Duke University (US)
  • University of South Alabama (US)
  • National Institute of Environmental Health Sciences (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
  • Shats, Igor
  • Li, Xiaoling
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2020-03
Volume
31
Issue
3
Pages
564-579.e7
ISSN
1550-4131 (ISSN-L)
OpenAlex
W3010636379
Cited by
242
References
73
Citations by year
2026: 31 · 2025: 52 · 2024: 37 · 2023: 37 · 2022: 42 · 2021: 28 · 2020: 14 · 2019: 1
FWCI
15.86
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
National Institute of Environmental Health Sciences
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
NAD+ metabolism, NAD biosynthesis, NAMPT inhibitors, nicotinamide, nicotinamide riboside, gut microbiota, host-microbe interactions, cancer cells, tumor xenografts
MeSH terms
Gastrointestinal Microbiome, Administration, Oral, Amides, Animals, Energy Metabolism, Female, Humans, Male, Mammals, Mice, Inbred C57BL, Mycoplasma, NAD, Nicotinamidase, Niacinamide, Nicotinamide Mononucleotide, Pyridinium Compounds, Cytokines, Cell Line, Tumor, Biosynthetic Pathways, Nicotinamide Phosphoribosyltransferase, Metabolome

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