Cited by 93Neurotransmitter Receptor Influence on BehaviorVisual perception and processing mechanismsNeuroscience and Neuropharmacology Research

Enriched Expression of Serotonin 1B and 2A Receptor Genes in Macaque Visual Cortex and their Bidirectional Modulatory Effects on Neuronal Responses

Open access
Watakabe, Akiya, Komatsu, Yusuke, Sadakane, Osamu, Shimegi, Satoshi, Takahata, Toru, Higo, Noriyuki, Tochitani, Shiro, Hashikawa, Tsutomu +9 more·2009·Cerebral Cortex

Abstract

To study the molecular mechanism how cortical areas are specialized in adult primates, we searched for area-specific genes in macaque monkeys and found striking enrichment of serotonin (5-hydroxytryptamine, 5-HT) 1B receptor mRNA, and to a lesser extent, of 5-HT2A receptor mRNA, in the primary visual area (V1). In situ hybridization analyses revealed that both mRNA species were highly concentrated in the geniculorecipient layers IVA and IVC, where they were coexpressed in the same neurons. Monocular inactivation by tetrodotoxin injection resulted in a strong and rapid (<3 h) downregulation of these mRNAs, suggesting the retinal activity dependency of their expression. Consistent with the high expression level in V1, clear modulatory effects of 5-HT1B and 5-HT2A receptor agonists on the responses of V1 neurons were observed in in vivo electrophysiological experiments. The modulatory effect of the 5-HT1B agonist was dependent on the firing rate of the recorded neurons: The effect tended to be facilitative for neurons with a high firing rate, and suppressive for those with a low firing rate. The 5-HT2A agonist showed opposite effects. These results suggest that this serotonergic system controls the visual response in V1 for optimization of information processing toward the incoming visual inputs.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1093/cercor/bhn219

Cites

72 of 72 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Cortical pyramidal neurons show heterogeneous expression of serotonin receptors and therefore may exhibit varied responses to activation of serotonergic afferents.

    “However, cortical pyramidal neurons show heterogeneous expression of serotonin receptors and therefore may exhibit varied responses to activation of serotonergic afferents201.”

    From Mechanisms underlying gain modulation in the cortex (2020) · cites this paper as [201]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Riad M Garcia S Watkins KC Jodoin N Doucet E Langlois X el Mestikawy S Hamon M Descarries L Somatodendritic localization of 5-HT1A and preterminal axonal localization of 5-HT1B serotonin receptors in adult rat brain J Comp Neurol. 2000 417 181 194 10660896
  2. Wong-Riley MT Peters A Rockland KS Primate visual cortex: dynamic metabolic organization and plasticity revealed by cytochrome oxidase Cerebral cortex 1994 New York Plenum Press 141 200

Cited by

Sorted by citations

Authors
Watakabe, A., Komatsu, Y., Sadakane, O., Shimegi, S., Takahata, T., Higo, N., Tochitani, S., Hashikawa, T., Naito, T., Osaki, H., Sakamoto, H., Okamoto, M., Ishikawa, A., Hara, S.-I., Akasaki, T., Sato, H., & Yamamori, T.
Affiliations
  • National Institute for Basic Biology (JP)
  • The University of Osaka (JP)
  • National Institute of Advanced Industrial Science and Technology (JP)
  • RIKEN Center for Brain Science (JP)
Corresponding author
Yamamori, Tetsuo
Venue
Cerebral Cortex
Published
2008-12-04
Volume
19
Issue
8
Pages
1915-1928
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2134498737
Cited by
93
References
72
Citations by year
2026: 7 · 2025: 4 · 2024: 11 · 2023: 6 · 2022: 5 · 2021: 4 · 2020: 10 · 2019: 2 · 2018: 2 · 2017: 2 · 2016: 10 · 2015: 5 · 2014: 4 · 2013: 3 · 2012: 4
FWCI
2.02
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Cerebral Cortex (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (19530656)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
5-HT1B receptor, 5-HT2A receptor, visual processing, cortical specialization
MeSH terms
Action Potentials, Animals, Chlorocebus aethiops, Electrophysiology, Macaca, Neurons, Photic Stimulation, Visual Cortex, Gene Expression, Serotonin Receptor Agonists, In Situ Hybridization, Reverse Transcriptase Polymerase Chain Reaction, Receptor, Serotonin, 5-HT1B, Receptor, Serotonin, 5-HT2A

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review