Cited by 134Genetics, Aging, and Longevity in Model OrganismsBacterial Genetics and BiotechnologyGene Regulatory Network Analysis

Integration of metabolic and gene regulatory networks modulates the C. elegans dietary response

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Watson, Emma, MacNeil, Lesley T., Arda, H. Efsun, Zhu, Lihua Julie, Walhout, Albertha J.M.·2013·Cell

Abstract

Expression profiles are tailored according to dietary input. However, the networks that control dietary responses remain largely uncharacterized. Here, we combine forward and reverse genetic screens to delineate a network of 184 genes that affect the C. elegans dietary response to Comamonas DA1877 bacteria. We find that perturbation of a mitochondrial network composed of enzymes involved in amino acid metabolism and the TCA cycle affects the dietary response. In humans, mutations in the corresponding genes cause inborn diseases of amino acid metabolism, most of which are treated by dietary intervention. We identify several transcription factors (TFs) that mediate the changes in gene expression upon metabolic network perturbations. Altogether, our findings unveil a transcriptional response system that is poised to sense dietary cues and metabolic imbalances, illustrating extensive communication between metabolic networks in the mitochondria and gene regulatory networks in the nucleus.

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Authors
Watson, E., MacNeil, L. T., Arda, H. E., Zhu, L. J., & Walhout, A. J. M.
Affiliations
University of Massachusetts Chan Medical School (US)
Corresponding author
Walhout, Albertha J.M.
Venue
Cell
Publisher
Elsevier BV
Published
2013-03
Volume
153
Issue
1
Pages
253-266
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2080908567
Cited by
134
References
40
Citations by year
2026: 4 · 2025: 6 · 2024: 10 · 2023: 12 · 2022: 15 · 2021: 6 · 2020: 11 · 2019: 7 · 2018: 10 · 2017: 12 · 2016: 12 · 2015: 10 · 2014: 13 · 2013: 6
FWCI
4.85
Type
journal article
Language
en
Update notices
erratum (2013-06-06)
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • The Journal of the American Medical Association (JAMA) Network (American Medical Association) (submittedVersion)
Funders
  • American Heart Association
  • National Institutes of Health
  • Canadian Institutes of Health Research
  • National Institute of Diabetes and Digestive and Kidney Diseases (R56DK068429, DK068429, R01DK068429)
  • National Center for Research Resources
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
Caenorhabditis elegans, dietary response, metabolic networks, gene regulatory networks, mitochondrial metabolism, amino acid metabolism, TCA cycle, transcription factors, amino acid metabolism disorders, dietary intervention
MeSH terms
Animals, Diet, Escherichia coli, Humans, Insulin, Metabolism, Inborn Errors, Mitochondria, Transcription Factors, Signal Transduction, Caenorhabditis elegans, Phosphotransferases (Alcohol Group Acceptor), Betaproteobacteria, Caenorhabditis elegans Proteins, RNA Interference, Acyl-CoA Dehydrogenase, Gene Regulatory Networks, Metabolic Networks and Pathways

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