Cited by 340Metabolism, Diabetes, and CancerNeuroscience and Neuropharmacology ResearchAutophagy in Disease and Therapy

AMP-Activated Protein Kinase is Highly Expressed in Neurons in the Developing Rat Brain and Promotes Neuronal Survival Following Glucose Deprivation

Culmsee, Carsten, monnig, Jennifer, Kemp, Bruce E., Mattson, Mark P.·2001·Journal of Molecular Neuroscience

Abstract

Adenosine monophosphate-activated protein kinase (AMPK) is a member of metabolite-sensing kinase family that plays important roles in responses of muscle cells to metabolic stress. AMPK is a heterotrimer of a catalytic alpha subunit (alpha1 or alpha2), and beta (beta1 or beta2) and gamma (gamma1 or gamma2) subunits. Because the brain has a high metabolic rate and is sensitive to changes in the supply of glucose and oxygen, we investigated the expression of AMPK in rat embryonic and adult brain and its role in modifying neuronal survival under conditions of cellular stress. We report that catalytic (alpha1 and alpha2) and noncatalytic (beta2 and gamma1) subunits of AMPK are present at high levels in embryonic hippocampal neurons in vivo and in cell culture. In the adult rat brain, the catalytic subunits alpha1 and alpha2 are present in neurons throughout the brain. The AMPK-activating agent AICAR protected hippocampal neurons against death induced by glucose deprivation, chemical hypoxia, and exposure to glutamate and amyloid beta-peptide. Suppression of levels of the AMPK alpha1 and alpha2 subunits using antisense technology resulted in enhanced neuronal death following glucose deprivation, and abolished the neuroprotective effect of AICAR. These findings suggest that AMPK can protect neurons against metabolic and excitotoxic insults relevant to the pathogenesis of several different neurodegenerative conditions.

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Crossref · 10.1385/jmn:17:1:45

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  • Alzheimer's disease is a brain-specific form of diabetes characterized by impaired insulin actions and neuronal insulin resistance that leads to excessive generation and accumulation of amyloid oligomers.

    “It is a brain specific form of diabetes characterized by impaired insulin actions and neuronal insulin resistance [120] that leads to excessive generation and accumulation of amyloid oligomers, a key factor in the development of AD [121].”

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Authors
Culmsee, C., monnig, J., Kemp, B. E., & Mattson, M. P.
Affiliations
  • National Institute on Aging (US)
  • University of Kentucky (US)
  • St Vincent's Hospital Melbourne (AU)
Corresponding author
Mattson, Mark P.
Venue
Journal of Molecular Neuroscience
Published
2001
Volume
17
Issue
1
Pages
45-58
ISSN
0895-8696 (ISSN-L)
OpenAlex
W2005329028
Cited by
340
References
60
Citations by year
2026: 5 · 2025: 6 · 2024: 7 · 2023: 8 · 2022: 11 · 2021: 13 · 2020: 12 · 2019: 10 · 2018: 20 · 2017: 16 · 2016: 16 · 2015: 20 · 2014: 21 · 2013: 17 · 2012: 18
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
AMPK, neuronal survival, glucose deprivation, hippocampal neurons, embryonic brain development, AICAR, neuroprotection, excitotoxicity, amyloid-beta, hypoxia, neurodegeneration, brain energy metabolism
MeSH terms
Aminoimidazole Carboxamide, Animals, Brain, Cell Survival, Cells, Cultured, Glucose, Hypoglycemic Agents, Immunohistochemistry, Male, Multienzyme Complexes, Neurons, Ribonucleotides, Triazines, Triazoles, Xanthines, Oligonucleotides, Antisense, Rats, Sprague-Dawley, Apoptosis, Protein Serine-Threonine Kinases, Neuroprotective Agents, Protein Subunits, Rats, AMP-Activated Protein Kinases

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