Cited by 314Cardiac Ischemia and ReperfusionAdenosine and Purinergic SignalingCircadian rhythm and melatonin

Adora2b-elicited Per2 stabilization promotes a HIF-dependent metabolic switch crucial for myocardial adaptation to ischemia

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Eckle, Tobias, Hartmann, Katherine, Bonney, Stephanie, Reithel, Susan, Mittelbronn, Michel, Walker, Lori A, Lowes, Brian D, Han, Jun +5 more·2012·Nature Medicine

Abstract

Adenosine signaling has been implicated in cardiac adaptation to limited oxygen availability. In a wide search for adenosine receptor A2b (Adora2b)-elicited cardioadaptive responses, we identified the circadian rhythm protein period 2 (Per2) as an Adora2b target. Adora2b signaling led to Per2 stabilization during myocardial ischemia, and in this setting, Per2(-/-) mice had larger infarct sizes compared to wild-type mice and loss of the cardioprotection conferred by ischemic preconditioning. Metabolic studies uncovered a limited ability of ischemic hearts in Per2(-/-) mice to use carbohydrates for oxygen-efficient glycolysis. This impairment was caused by a failure to stabilize hypoxia-inducible factor-1α (Hif-1α). Moreover, stabilization of Per2 in the heart by exposing mice to intense light resulted in the transcriptional induction of glycolytic enzymes and Per2-dependent cardioprotection from ischemia. Together, these studies identify adenosine-elicited stabilization of Per2 in the control of HIF-dependent cardiac metabolism and ischemia tolerance and implicate Per2 stabilization as a potential new strategy for treating myocardial ischemia.

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  • Genetic manipulation of clock components impacts the ischemic tolerance of the heart, with some mutations worsening and some improving the response.

    “Genetic manipulation of clock components impacts the ischemic tolerance of the heart, with some mutations worsening (146) and some improving the response (147).”

    From Role of the circadian system in cardiovascular disease (2018) · cites this paper as [146]

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Authors
Eckle, T., Hartmann, K., Bonney, S., Reithel, S., Mittelbronn, M., Walker, L. A., Lowes, B. D., Han, J., Borchers, C. H., Buttrick, P. M., Kominsky, D. J., Colgan, S. P., & Eltzschig, H. K.
Affiliations
  • University of Colorado Anschutz (US)
  • Goethe University Frankfurt (DE)
  • University of Victoria (CA)
Corresponding author
Eckle, Tobias
Venue
Nature Medicine
Published
2012-04-15
Volume
18
Issue
5
Pages
774-782
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W1995475470
Cited by
314
References
61
Citations by year
2026: 13 · 2025: 14 · 2024: 23 · 2023: 19 · 2022: 20 · 2021: 27 · 2020: 23 · 2019: 25 · 2018: 21 · 2017: 21 · 2016: 18 · 2015: 16 · 2014: 25 · 2013: 37 · 2012: 12
FWCI
20.76
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
  • American Heart Association
  • Crohn's and Colitis Foundation of America
  • University of Denver
  • Crohn's and Colitis Foundation
  • National Heart, Lung, and Blood Institute (HL098294, R01HL60569, R01HL060569, R01HL098294, HL-60569, K08HL102267, R01HL092188, R01‑HL0921)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R37DK050189, R01DK083385, R01DK095491)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Adenosine and Purinergic Signaling
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
adenosine A2B receptor, Per2, HIF-1α stabilization, myocardial ischemia, myocardial metabolism, glycolysis, ischemic preconditioning, cardioprotection, circadian rhythm, hypoxia, light exposure, infarct size
MeSH terms
Adaptation, Physiological, Animals, Cells, Cultured, Glycolysis, Humans, Male, Mice, Inbred C57BL, Myocardium, Myocardial Ischemia, Receptor, Adenosine A2B, Proteasome Endopeptidase Complex, Mice, Hypoxia-Inducible Factor 1, alpha Subunit, Period Circadian Proteins

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