Cited by 442Neuroendocrine regulation and behaviorNeuropeptides and Animal PhysiologyCardiovascular, Neuropeptides, and Oxidative Stress Research

Localization and pharmacological characterization of high affinity binding sites for vasopressin and oxytocin in the rat brain by light microscopic autoradiography

Tribollet, E., Barberis, C., Jard, S., Dubois-Dauphin, M., Dreifuss, J.J.·1988·Brain Research

Abstract

Sites which bind tritiated vasopressin (AVP) with high affinity were detected in the brain of male, adult rats, by light microscopic autoradiography. Their anatomical localization differed markedly from that of high affinity binding sites for tritiated oxytocin (OT) determined in the same animal. Co-labelling was minimized by using low concentrations of [3H]AVP and [3H]OT. Binding of the former occurred predominantly in several structures of the limbic system (septum, amygdala, bed nucleus of the stria terminalis, accumbens nucleus), in two hypothalamic nuclei (suprachiasmatic and dorsal tuber) and in the area of the nucleus of the solitary tract. Binding of OT was evidenced in the olfactory tubercle, the ventromedial hypothalamic nucleus, the central amygdaloid nucleus and the ventral hippocampus. The ligand specificity of the binding sites was assessed in competition experiments. Synthetic structural analogues were used, allowing to discriminate OT receptors (OH[Thr4,Gly7]OT) from V2 receptors (dDAVP and d[Tyr(Me)2]VDAVP), V1 receptors ([Phe2,Orn8]VT) and V1b receptors (desGly9d(CH2)5AVP). Our main conclusions are, firstly, that AVP and OT binding sites can be readily distinguished, and that there is virtually no overlap in their distribution in the rat brain. Second, we showed that the sites which bind AVP with high affinity in the brain are V1 receptors, different both from the renal V2 receptors and from the anterior pituitary V1b receptors. Our results support the conjecture that AVP and OT play a role in interneuronal communication in the brain.

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Crossref · 10.1016/0006-8993(88)91437-0

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  • The effects of ICV injections on social play reflect a net inhibition of V1aR activation in multiple brain regions.

    “Instead, the widespread distribution of V1aR throughout the brain, including many areas that border the ventricles (Tribollet et al., 1988), suggests that the effects of ICV injections on social play reflect a net inhibition of V1aR activation in multiple brain regions.”

    From Sex-specific modulation of juvenile social play by vasopressin (2013) · cites this paper as Tribollet et al., 1988

  • Distinct and non-overlapping receptor distribution profiles in rats were already reported by Tribollet et al (1988) and Veinante and Freund-Mercier (1997).

    “Notably, distinct and non-overlapping receptor distribution profiles in rats were already reported by Tribollet et al (1988), and Veinante and Freund-Mercier (1997).”

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Authors
Tribollet, E., Barberis, C., Jard, S., Dubois-Dauphin, M., & Dreifuss, J. J.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Geneva (CH)
Corresponding author
Tribollet, E.
Venue
Brain Research
Publisher
Elsevier BV
Published
1988-02
Volume
442
Issue
1
Pages
105-118
ISSN
0006-8993 (ISSN-L)
OpenAlex
W1981333355
Cited by
442
References
35
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 7 · 2020: 3 · 2019: 10 · 2018: 10 · 2017: 8 · 2016: 8 · 2015: 7 · 2014: 11 · 2013: 6 · 2012: 4
FWCI
56.09
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Surgery › Cardiovascular, Neuropeptides, and Oxidative Stress Research
Keywords
vasopressin receptor, oxytocin receptor, high-affinity binding sites, V1 receptor, V2 receptor, V1b receptor, receptor localization, limbic system, hypothalamus, nucleus tractus solitarius, olfactory tubercle, central amygdala, ventral hippocampus, receptor specificity, competitive binding, interneuronal communication, rat brain
MeSH terms
Animals, Arginine Vasopressin, Autoradiography, Binding Sites, Brain, Hypothalamus, Limbic System, Male, Oxytocin, Rats, Inbred Strains, Receptors, Angiotensin, Thalamus, Receptors, Vasopressin, Receptors, Oxytocin, Rats

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