Vasopressin-induced contraction of uterus is mediated solely by the oxytocin receptor in mice, but not in humans
Abstract
In the non-pregnant mouse myometrium, both arginine vasopressin and oxytocin induced contractions (pD(2)=8.55+/-0.13 and 9.23+/-0.09, respectively). The effect of oxytocin was the most potent, while the maximum contractions induced by these two peptides were almost of the same magnitude. Both vasopressin- and oxytocin-induced contractions were strongly inhibited by an oxytocin receptor antagonist, CL-12-42 (d(CH(2))(5)[Tyr(Me)(2),Thr(4),Tyr-NH(2)(9)]OVT), and weakly inhibited by a vasopressin V(1a) receptor antagonist, SR49059 ((2S)1-[(2R,3S)-5-chloro-3-(2-chlorophenyl)-1-(3,4-dimethoxybenzene-sulfonyl)-3-hydroxy-2,3-dihydro-1H-indole-2-carbonyl]-pyrrolidine-2-carboxamide). Similar results were obtained in the pregnant mouse myometrium. These results suggest that not only oxytocin- but also vasopressin-induced contraction is mediated by the activation of oxytocin receptors in the mouse myometrium. A reverse transcription polymerase chain reaction study failed to reveal mRNA of the vasopressin V(1a) receptor in the mouse myometrium. In contrast, in the non-pregnant human myometrium, vasopressin-induced contraction was inhibited by SR49059. Oxytocin showed no effect on the myometrium. These results suggest that there are significant differences in the functional receptors and contractile responses to vasopressin and oxytocin in the human and mouse uteri.
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Uterine contractions induced by OT or AVP are largely mediated by OTRs.
“Uterine contractions induced by OT or AVP are largely mediated by OTRs [46; 47; 48].”
From Cross-talk among oxytocin and arginine-vasopressin receptors: Relevance for basic and clinical studies of the brain and periphery (2018) · cites this paper as [48]
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- Authors
- Kawamata, M., Mitsui-Saito, M., Kimura, T., Takayanagi, Y., Yanagisawa, T., & Nishimori, K.
- Affiliations
- Tohoku University (JP)
- Osaka International Cancer Institute (JP)
- Venue
- European Journal of Pharmacology
- Publisher
- Elsevier BV
- Published
- 2003-07
- Volume
- 472
- Issue
- 3
- Pages
- 229-234
- ISSN
- 0014-2999 (ISSN-L)
- OpenAlex
- W2040816275
- Cited by
- 47
- References
- 36
- Citations by year
- 2026: 1 · 2025: 4 · 2022: 1 · 2021: 2 · 2020: 16 · 2019: 3 · 2017: 1 · 2015: 2 · 2014: 1 · 2013: 2 · 2012: 1
- FWCI
- 3.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- European Journal of Pharmacology (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, oxytocin, uterine contraction, myometrium, oxytocin receptor, vasopressin V1a receptor, species differences, pregnancy, mice, human
- MeSH terms
- Adult, Animals, Dose-Response Relationship, Drug, Female, Humans, Mice, Inbred C57BL, Middle Aged, Oxytocin, Pregnancy, Uterine Contraction, Vasopressins, Receptors, Oxytocin, Mice, In Vitro Techniques
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