Cited by 227Neuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on BehaviorReceptor Mechanisms and Signaling

Rapid modulation of spine morphology by the 5-HT 2A serotonin receptor through kalirin-7 signaling

Open access
Jones, Kelly A., Srivastava, Deepak P., Allen, John A., Strachan, Ryan T., Roth, Bryan L., Penzes, Peter·2009·Proceedings of the National Academy of Sciences

Abstract

The 5-HT 2A serotonin receptor is the most abundant serotonin receptor subtype in the cortex and is predominantly expressed in pyramidal neurons. The 5-HT 2A receptor is a target of several hallucinogens, antipsychotics, anxiolytics, and antidepressants, and it has been associated with several psychiatric disorders, conditions that are also associated with aberrations in dendritic spine morphogenesis. However, the role of 5-HT 2A receptors in regulating dendritic spine morphogenesis in cortical neurons is unknown. Here we show that the 5-HT 2A receptor is present in a subset of spines, in addition to dendritic shafts. It colocalizes with PSD-95 and with multiple PDZ protein-1 (MUPP1) in a subset of dendritic spines of rat cortical pyramidal neurons. MUPP1 is enriched in postsynaptic density (PSD) fractions, is targeted to spines in pyramidal neurons, and enhances the localization of 5-HT 2A receptors to the cell periphery. 5-HT 2A receptor activation by the 5-HT 2 receptor agonist DOI induced a transient increase in dendritic spine size, as well as phosphorylation of p21-activated kinase (PAK) in cultured cortical neurons. PAK is a downstream target of the neuronal Rac guanine nucleotide exchange factor (RacGEF) kalirin-7 that is important for spine remodeling. Kalirin-7 regulates dendritic spine morphogenesis in neurons but its role in neuromodulator signaling has not been investigated. We show that peptide interference that prevents the localization of kalirin-7 to the postsynaptic density disrupts DOI-induced PAK phosphorylation and spine morphogenesis. These results suggest a potential role for serotonin signaling in modulating spine morphology and kalirin-7's function at cortical synapses.

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 · 10.1073/pnas.0905884106

Cites

45 of 45 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?

  • The 5-HT2A receptor is expressed on dendritic shafts and dendritic spines of cortical neurons in both rodents and primates.

    “The 5-HT 2A R, a common target of psychedelics, is expressed on dendritic shafts and dendritic spines of cortical neurons in both rodents and primates (Jakab and Goldman-Rakic, 1998;Miner et al., 2003;Jones et al., 2009;Weber and Andrade, 2010;Yoshida et al., 2011).”

    From Psychedelics and Neural Plasticity: Therapeutic Implications (2022) · cites this paper as Jones et al., 2009

  • DOI increases spine size in cultured cortical neurons.

    “DOI, one of the more readily accessible psychedelics to researchers, has been shown to increase dendritic growth (Persico et al., 2006;Ohtani et al., 2014;Ly, Greb et al., 2018;Ly et al., 2021), synaptic puncta, spine density (Yoshida et al., 2011;Ly et al., 2018), and spine size (Jones et al., 2009) in cultured cortical neurons.”

    From Psychedelics and Neural Plasticity: Therapeutic Implications (2022) · cites this paper as Jones et al., 2009

  • Neurotransmitters including norepinephrine, serotonin and glutamate, as well as stress-induced release of neuropeptides and steroids, can influence synapse number and function.

    “Neurotransmitters, including norepinephrine,76, 77, 78 serotonin79, 80, 81 and glutamate,82,83 as well as stress-induced release of neuropeptides26,34,84,85 and steroids,86, 87, 88 can influence synapse number and function.”

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

Cited by

Sorted by citations

Authors
Jones, K. A., Srivastava, D. P., Allen, J. A., Strachan, R. T., Roth, B. L., & Penzes, P.
Affiliations
  • Northwestern University (US)
  • University of North Carolina at Chapel Hill (US)
  • Case Western Reserve University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2009-11-17
Volume
106
Issue
46
Pages
19575-19580
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2143648030
Cited by
226
References
45
Citations by year
2026: 16 · 2025: 13 · 2024: 14 · 2023: 27 · 2022: 14 · 2021: 21 · 2020: 15 · 2019: 6 · 2018: 11 · 2017: 8 · 2016: 8 · 2015: 11 · 2014: 14 · 2013: 14 · 2012: 14
FWCI
4.56
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)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • UNC Libraries
Funders
  • Alzheimer's Association
  • American Heart Association
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health (n01mh32004-8-0-0, U19MH82441)
  • National Institute of Mental Health (U19MH082441, U19-MH82441, R01MH061887, R01MH61887, F31MH085362, N01 MH032004, R01MH071316)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD040127)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
5-HT2A receptor, Kalirin-7, dendritic spine morphogenesis, cortical pyramidal neurons, p21-activated kinase, postsynaptic density, MUPP1, PSD-95, digital object identifiers, serotonin signaling, synaptic plasticity
MeSH terms
Animals, Carrier Proteins, Dendrites, Morphogenesis, Neuronal Plasticity, Spine, Synapses, Rats, Sprague-Dawley, Pyramidal Cells, Guanine Nucleotide Exchange Factors, Receptor, Serotonin, 5-HT2A, Intracellular Signaling Peptides and Proteins, Rats

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