Cited by 176Neurotransmitter Receptor Influence on BehaviorSchizophrenia research and treatmentPharmacogenetics and Drug Metabolism

C957T polymorphism of dopamine D2 receptor gene affects striatal DRD2 in vivo availability by changing the receptor affinity

Hirvonen, Mika M., Laakso, Aki, Någren, Kjell, Rinne, Juha O., Pohjalainen, Tiina, Hietala, Jarmo·2009·Synapse

Abstract

The C957T polymorphism of the human dopamine D2 receptor gene (DRD2) regulates DRD2 availability in striatum in vivo. Specifically, the T allele predicts high DRD2 availability in healthy volunteers (T/T>T/C>C/C). However, this finding was unexpected as in vitro the T allele is associated with a decrease in DRD2 mRNA stability and synthesis of the receptor through a putative alteration in the receptor mRNA folding. To elucidate further how changes in DRD2 density (B(max)) and affinity (K(D)) contribute to the differences in DRD2 availability between the C957T genotypes, we studied these parameters separately in a sample of 45 healthy volunteers. The subjects had two PET scans with [(11)C]raclopride (high and low specific radioactivity scans) for the estimation of B(max) and K(D), and were genotyped for the C957T. Moreover, the role of the related and previously studied functional TaqIA polymorphism of ankyrin repeat and kinase domain containing 1 (ANKK1) gene was reassessed for comparative purposes. The results indicate that the C957T increased binding potential by decreasing DRD2 K(D) (C/C>C/T>T/T), while B(max) was not significantly altered. These preliminary findings indicate that the C957T genotype-dependent changes in DRD2 availability are driven by alterations in receptor affinity and putatively in striatal dopamine levels. This mechanism seems to differ from that observed previously for the ANKK1 gene TaqIA polymorphism, where the minor allele (A1) affects DRD2 availability predominantly by changing B(max). The hypothesis that the two SNPs may have independent effects on dopamine neurotransmission needs to be further tested.

Integrity signals

Registry

Crossref · 10.1002/syn.20672

Cites

44 of 44 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • A second polymorphism associated with decreased cortical and thalamic D2-receptor availability is related to poor action cancelation.

    “A second polymorphism, which has been associated with decreased cortical and thalamic D2-receptor availability (Hirvonen et al., 2009), was also related to poor action cancelation (Colzato et al., 2010).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hirvonen, M. M., Laakso, A., Någren, K., Rinne, J. O., Pohjalainen, T., & Hietala, J.
Affiliations
  • University of Turku (FI)
  • Helsinki University Hospital (FI)
  • Turku University Hospital (FI)
Corresponding author
Hietala, Jarmo
Venue
Synapse
Publisher
Wiley
Published
2009-07-06
Volume
63
Issue
10
Pages
907-912
ISSN
  • 0887-4476 (ISSN-L)
  • 1098-2396
OpenAlex
W2141743203
Cited by
176
References
44
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 9 · 2022: 15 · 2021: 12 · 2020: 9 · 2019: 8 · 2018: 13 · 2017: 14 · 2016: 15 · 2015: 11 · 2014: 12 · 2013: 10 · 2012: 13
FWCI
5.32
Type
journal article
Language
en
Open access
closed
Locations
  • Synapse (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
Keywords
dopamine D2 receptor, DRD2 gene, striatum, receptor availability, receptor binding affinity, binding potential, dopamine signaling, genetic polymorphism
MeSH terms
Adult, Aged, Analysis of Variance, Carbon Isotopes, Corpus Striatum, Female, Genotype, Humans, Male, Middle Aged, Protein Binding, Protein Serine-Threonine Kinases, Receptors, Dopamine D2, Statistics, Nonparametric, Polymorphism, Single Nucleotide, Raclopride, Positron-Emission Tomography, Young Adult

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