Cited by 289Alzheimer's disease research and treatmentsNeuroscience and Neuropharmacology ResearchMemory and Neural Mechanisms

Astrocytic adenosine receptor A2A and Gs-coupled signaling regulate memory

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Orr, Anna G, Hsiao, Edward C, Wang, Max M, Ho, Kaitlyn, Kim, Daniel H, Wang, Xin, Guo, Weikun, Kang, Jing +7 more·2015·Nature Neuroscience

Abstract

Astrocytes express a variety of G protein-coupled receptors and might influence cognitive functions, such as learning and memory. However, the roles of astrocytic Gs-coupled receptors in cognitive function are not known. We found that humans with Alzheimer's disease (AD) had increased levels of the Gs-coupled adenosine receptor A2A in astrocytes. Conditional genetic removal of these receptors enhanced long-term memory in young and aging mice and increased the levels of Arc (also known as Arg3.1), an immediate-early gene that is required for long-term memory. Chemogenetic activation of astrocytic Gs-coupled signaling reduced long-term memory in mice without affecting learning. Like humans with AD, aging mice expressing human amyloid precursor protein (hAPP) showed increased levels of astrocytic A2A receptors. Conditional genetic removal of these receptors enhanced memory in aging hAPP mice. Together, these findings establish a regulatory role for astrocytic Gs-coupled receptors in memory and suggest that AD-linked increases in astrocytic A2A receptor levels contribute to memory loss.

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Authors
Orr, A. G., Hsiao, E. C., Wang, M. M., Ho, K., Kim, D. H., Wang, X., Guo, W., Kang, J., Yu, G.-Q., Adame, A., Devidze, N., Dubal, D. B., Masliah, E., Conklin, B. R., & Mucke, L.
Affiliations
  • Gladstone Institutes (US)
  • University of California San Diego (US)
  • University of California, San Francisco (US)
Corresponding author
  • Orr, Anna G
  • Mucke, Lennart
Venue
Nature Neuroscience
Published
2015-01-26
Volume
18
Issue
3
Pages
423-434
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2050513958
Cited by
289
References
87
Citations by year
2026: 20 · 2025: 22 · 2024: 19 · 2023: 26 · 2022: 23 · 2021: 34 · 2020: 21 · 2019: 23 · 2018: 33 · 2017: 30 · 2016: 28 · 2015: 9
FWCI
24.54
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute on Aging (K08AG034531, P50AG005131, AG022074, P01AG022074, AG039220, AG034531, F32AG039220)
  • National Heart, Lung, and Blood Institute (R01HL060664, U01HL100406, HL60664, HL100406)
  • National Institute of Mental Health (R01MH062962)
  • National Institute of Neurological Disorders and Stroke (NS065780, P30NS065780)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K08AR056299, AR056299)
  • National Center for Research Resources (RR18938)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
astrocytes, adenosine A2A receptor, long-term memory, Alzheimer's disease, aging, Arc/Arg3.1, immediate early genes, amyloid precursor protein, chemogenetic activation, conditional gene deletion, memory loss
MeSH terms
Alzheimer Disease, Animals, Animals, Newborn, Astrocytes, Cytoskeletal Proteins, Exploratory Behavior, Gene Expression Regulation, Glial Fibrillary Acidic Protein, Humans, Indoles, Mice, Inbred C57BL, Mice, Transgenic, Nerve Tissue Proteins, Serotonin Antagonists, Sulfonamides, Signal Transduction, Maze Learning, Recognition, Psychology, Receptor, Adenosine A2A, Receptors, Serotonin, 5-HT4, Mice, Memory, Long-Term

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