Cited by 294Metabolism, Diabetes, and CancerRedox biology and oxidative stressProtein Kinase Regulation and GTPase Signaling

The Regulation of AMP-Activated Protein Kinase by H2O2

Choi, Sang-Lim, Kim, Soo-Ja, Lee, Kyung-Tae, Kim, Joungmok, Mu, James, Birnbaum, Morris J., Soo Kim, Sung, Ha, Joohun·2001·Biochemical and Biophysical Research Communications

Abstract

AMP-activated protein kinase (AMPK), a heterotrimeric serine/threonine kinase, is activated by conditions leading to an increase of the intracellular AMP:ATP ratio. However, how AMPK is regulated under the oxidative stress is completely unknown. In the present study, we examined effects of the oxidative agent H(2)O(2) on AMPK. AMPK was transiently and concentration-dependently activated by H(2)O(2) in NIH-3T3 cells. This activation was tightly associated with an increased AMP:ATP ratio, an electrophoretic mobility shift of AMPK alpha1 catalytic subunit, and an increased phosphorylation level of AMPK alpha1 threonine 172, which is a major in vitro phosphorylation site by the upstream AMPK kinase. All of these events were significantly blocked by the pretreatment of 0.5% dimethyl sulfoxide, a potent hydroxyl radical scavenger, indicating that AMPK cascades are highly sensitive to the oxidative stress. Interestingly, a specific tyrosine kinase inhibitor, genistein, further stimulated the H(2)O(2)-induced AMPK activity by 70% without altering the AMP:ATP. Taken together, our results suggest that AMP:ATP ratio is the major parameter to which AMPK responds under the oxidative stress, but AMPK may be regulated in part by a tyrosine kinase-dependent pathway, which is independent of the cellular adenosine nucleotides level.

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Crossref · 10.1006/bbrc.2001.5544

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44 of 44 references verified0 citation errors · 0 not checkable

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  • AMPK is responsive to imbalanced redox status.

    “Recent lines of evidence have demonstrated AMPK responsiveness to imbalanced redox status, thus bringing new insights into the networks of redox-stimulated signals upstream of AMPK (Table 1) [42,43,44,45,46,47,48,49,50,51].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [45]

  • In NIH-3T3 cells, exogenous hydrogen peroxide transiently activated AMPK in a dose-dependent manner, associated with an increased AMP-to-ATP ratio.

    “Similarly, in NIH-3T3 cells, exogenous hydrogen peroxide transiently activated AMPK in a dose-dependent manner, which was associated with an increased AMP-to-ATP ratio [45].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [45]

  • H2O2 appears to activate AMPK through an increase in the AMP/ATP ratio and by threonine phosphorylation.

    “H2O2 appears to activate AMPK through an increase in the AMP/ATP ratio and by threonine phosphorylation (60).”

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Authors
Choi, S.-L., Kim, S.-J., Lee, K.-T., Kim, J., Mu, J., Birnbaum, M. J., Soo Kim, S., & Ha, J.
Affiliations
  • Kyung Hee University (KR)
  • Howard Hughes Medical Institute (US)
Corresponding author
Ha, Joohun
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2001-09
Volume
287
Issue
1
Pages
92-97
ISSN
0006-291X (ISSN-L)
OpenAlex
W2090321764
Cited by
294
References
44
Citations by year
2026: 2 · 2025: 2 · 2024: 10 · 2023: 9 · 2022: 14 · 2021: 11 · 2020: 19 · 2019: 13 · 2018: 6 · 2017: 6 · 2016: 16 · 2015: 15 · 2014: 15 · 2013: 20 · 2012: 20
FWCI
2.44
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
AMPK, hydrogen peroxide, oxidative stress, AMP/ATP ratio, hydroxyl radical scavenging, dimethyl sulfoxide, genistein, tyrosine kinase, kinase activation
MeSH terms
Adenosine Monophosphate, Adenosine Triphosphate, Animals, Catalysis, Enzyme Activation, Hydrogen Peroxide, Multienzyme Complexes, Phosphorylation, Protein-Tyrosine Kinases, Threonine, 3T3 Cells, Protein Serine-Threonine Kinases, Reactive Oxygen Species, Oxidative Stress, Mice, AMP-Activated Protein Kinases

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