Cited by 4,602Metabolism, Diabetes, and CancerBiochemical and Molecular ResearchAdipose Tissue and Metabolism

AMPK: a nutrient and energy sensor that maintains energy homeostasis

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Hardie, D. Grahame, Ross, Fiona A., Hawley, Simon A.·2012·Nature Reviews Molecular Cell Biology

Abstract

AMP-activated protein kinase (AMPK) is a crucial cellular energy sensor. Once activated by falling energy status, it promotes ATP production by increasing the activity or expression of proteins involved in catabolism while conserving ATP by switching off biosynthetic pathways. AMPK also regulates metabolic energy balance at the whole-body level. For example, it mediates the effects of agents acting on the hypothalamus that promote feeding and entrains circadian rhythms of metabolism and feeding behaviour. Finally, recent studies reveal that AMPK conserves ATP levels through the regulation of processes other than metabolism, such as the cell cycle and neuronal membrane excitability.

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Crossref · 10.1038/nrm3311

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  • Nutrient-sensing pathways such as mTOR and AMPK have a critical role in regulating resilience under chronic stress and malnutrition.

    “Nutrient-sensing pathways (for example, mTOR and AMPK) have a critical role in regulating resilience under chronic stress and malnutrition93.”

    From Resilience and brain health in global populations (2025) · cites this paper as [93]

    The sections on anabolic pathways and AMPK regulation describe AMPK as maintaining energy homeostasis during metabolic stress and regulating TOR-related proteins. They do not establish that mTOR and AMPK regulate resilience under chronic stress and malnutrition; that broader outcome and setting go beyond what the paper says. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • To increase ATP availability, the cells increase the catabolism of energy stores, such as fatty acids, and the biosynthesis of costly fatty acids and ergosterol is decreased.

    “To increase ATP availability, the cells increase the catabolism of energy stores, such as fatty acids, and the biosynthesis of”

    From Mitochondrial Activity and Cyr1 Are Key Regulators of Ras1 Activation of C. albicans Virulence Pathways (2015) · cites this paper as [55]

    The sections on other catabolic pathways and anabolic pathways say AMPK promotes fatty-acid breakdown and reduces ATP-consuming fatty-acid synthesis. The anabolic-pathways section discusses reduced cholesterol synthesis, but does not establish reduced ergosterol synthesis; that specific part of the claim is unsupported by our copy (page numbers unavailable). (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Increased ADP:ATP or AMP:ATP ratios activate AMPK.

    “Increased ADP:ATP or AMP:ATP ratios activate AMPK (Hardie et al., 2012)”

    From Mitochondrial Dysfunction Induces Senescence with a Distinct Secretory Phenotype (2016) · cites this paper as Hardie et al., 2012

  • AMP kinase is a known energy sensor that measures ratios of ATP to ADP/AMP and is activated when cellular energy status is low in eukaryotes.

    “This activation is not surprising as AMP kinase is a known energy sensor that measures ratios of ATP to ADP/AMP [55] that is activated when cellular energy status is low in eukaryotes.”
  • Active AMPK plays a role in the long-term regulation of mitochondrial mass by controlling the transcription and activity of PGC-1α.

    “and also plays a role in the long-term regulation of mitochondrial mass by controlling the transcription and activity of PGC-1α [34].”

    From Using Molecular Biology to Maximize Concurrent Training (2014) · cites this paper as [34]

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Authors
Hardie, D. G., Ross, F. A., & Hawley, S. A.
Affiliations
University of Dundee (GB)
Corresponding author
Hardie, D. Grahame
Venue
Nature Reviews Molecular Cell Biology
Published
2012-03-22
Volume
13
Issue
4
Pages
251-262
ISSN
  • 1471-0072 (ISSN-L)
  • 1471-0080
OpenAlex
W2016752484
Cited by
4,602
References
124
Citations by year
2026: 401 · 2025: 370 · 2024: 275 · 2023: 328 · 2022: 368 · 2021: 406 · 2020: 370 · 2019: 305 · 2018: 302 · 2017: 336 · 2016: 320 · 2015: 293 · 2014: 262 · 2013: 211 · 2012: 50
FWCI
23.83
Type
journal article
Language
en
Open access
Locations
  • Nature Reviews Molecular Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Discovery Research Portal (University of Dundee) (acceptedVersion, other-oa)
Funders
Wellcome Trust (097726)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
AMPK, energy homeostasis, energy sensing, AMP/ATP ratio, cellular metabolism, catabolism, feeding behaviour, circadian rhythm, hypothalamus, cell cycle regulation, neuronal excitability
MeSH terms
Adenosine Diphosphate, Adenosine Triphosphate, Animals, Appetite, Circadian Rhythm, Energy Metabolism, Glucose, Humans, Hypothalamus, Mammals, Mitochondria, Xenobiotics, Oxidative Stress, Glucose Transporter Type 4, AMP-Activated Protein Kinases

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