Cited by 312Neuroscience and Neuropharmacology ResearchStress Responses and CortisolNeurotransmitter Receptor Influence on Behavior

Caffeine acts through neuronal adenosine A 2A receptors to prevent mood and memory dysfunction triggered by chronic stress

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Kaster, Manuella P., Machado, Nuno J., Silva, Henrique B., Nunes, Ana, Ardais, Ana Paula, Santana, Magda, Baqi, Younis, Müller, Christa E. +7 more·2015·Proceedings of the National Academy of Sciences

Abstract

Significance: Epidemiological studies show that individuals exposed to repeated stress, a major trigger of depression, increase their caffeine intake, which correlates inversely with the incidence of depression. However, the mechanism underlying this protective effect is unknown. We used an animal model of chronic unpredictable stress (CUS) to show that caffeine prevents the maladaptive changes caused by CUS in a manner mimicked by the selective blockade of adenosine A 2A receptors (A 2A R). CUS enhanced A 2A R in synapses, and the selective elimination of neuronal A 2A R abrogated CUS modifications. Moreover, A 2A R blockade also afforded a therapeutic benefit, paving the way to consider A 2A R blockers as a strategy to manage the negative impact of chronic stress on mood and memory.

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  • Animal experiments have demonstrated that A2A R are upregulated in chronic stress animal models.

    “Moreover, animal experiments have demonstrated that A 2A R are upregulated in chronic stress animal models. 102”

    From Major depressive disorder: hypothesis, mechanism, prevention and treatment (2024) · cites this paper as [102]

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Authors
Kaster, M. P., Machado, N. J., Silva, H. B., Nunes, A., Ardais, A. P., Santana, M., Baqi, Y., Müller, C. E., Rodrigues, A. L. S., Porciúncula, L. O., Chen, J. F., Tomé, Â. R., Agostinho, P., Canas, P. M., & Cunha, R. A.
Affiliations
  • Universidade Federal de Santa Catarina (BR)
  • Centro de Neurociências e Biologia Celular (PT)
  • Universidade Federal do Rio Grande do Sul (BR)
  • University of Bonn (DE)
  • Boston University (US)
  • University of Coimbra (PT)
Venue
Proceedings of the National Academy of Sciences
Published
2015-06-08
Volume
112
Issue
25
Pages
7833-7838
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1591120748
Cited by
312
References
48
Citations by year
2026: 24 · 2025: 28 · 2024: 23 · 2023: 26 · 2022: 33 · 2021: 36 · 2020: 26 · 2019: 29 · 2018: 41 · 2017: 19 · 2016: 17 · 2015: 10
FWCI
13.53
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Brain and Behavior Research Foundation (2014 NARSAD INDEPENDENT INVESTIGATOR GRANT)
  • DOD | Defense Advanced Research Projects Agency (W911NF-10-1-0059)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
caffeine, adenosine A2A receptor, chronic unpredictable mild stress, depression, anxiety, memory impairment, hippocampus, synaptic plasticity, glutamatergic terminals, SNAP-25, syntaxin, VGLUT1, adenosine A2A receptor antagonists, neuroprotection
MeSH terms
Animals, Caffeine, Male, Memory Disorders, Mice, Inbred C57BL, Neurons, Stress, Psychological, Mood Disorders, Receptor, Adenosine A2A, Mice

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