Cited by 82Neuropeptides and Animal PhysiologyCardiovascular, Neuropeptides, and Oxidative Stress ResearchPain Mechanisms and Treatments

Tachykinins and tachykinin receptors in human uterus

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Patak, Eva, Luz Candenas, M, Pennefather, Jocelyn N, Ziccone, Sebastian, Lilley, Alison, Martín, Julio D, Flores, Carlos, Mantecón, Antonio G +2 more·2003·British Journal of Pharmacology

Abstract

Studies were undertaken to determine the nature of the receptors mediating contractile effects of tachykinins in the uteri of nonpregnant women, and to analyse the expression of preprotachykinins (PPT), tachykinin receptors and the cell‐surface peptidase, neprilysin (NEP), in the myometrium from pregnant and nonpregnant women. The neurokinin B (NKB) precursor PPT‐B was expressed in higher levels in the myometrium from nonpregnant than from pregnant women. Faint expression of PPT‐A mRNA was detectable in the myometrium from nonpregnant but not pregnant women. PPT‐C, the gene encoding the novel tachykinin peptide hemokinin‐1 (HK‐1), was present in trace amounts in the uteri from both pregnant and nonpregnant women. Tachykinin NK 2 receptors were more strongly expressed in tissues from nonpregnant than from pregnant women. NK 1 receptor mRNA was present in low levels in tissues from both pregnant and nonpregnant women. A low abundance transcript corresponding to the NK 3 receptor was present only in tissues from nonpregnant women. The mRNA expression of the tachykinin‐degrading enzyme NEP was lower in tissues from nonpregnant than from pregnant women. Substance P (SP), neurokinin A (NKA) and NKB, in the presence of the peptidase inhibitors thiorphan, captopril and bestatin, produced contractions of myometrium from nonpregnant women. The order of potency was NKA≫SP≥NKB. The potency of NKA was unchanged in the absence of peptidase inhibitors. The tachykinin NK 2 receptor‐selective agonist [Lys 5 MeLeu 9 Nle 10]NKA(4–l0) was approximately equipotent with NKA, but the tachykinin NK 1 and NK 3 receptor‐selective agonists [Sar 9 Met(O 2)11]SP and [MePhe 7]NKB were ineffective in the myometrium from nonpregnant women. The uterotonic effects of [Lys 5 MeLeu 9 Nle 10]NKA(4–10) were antagonized by the tachykinin NK 2 receptor‐selective antagonist SR48968. Neither atropine, nor phentolamine nor tetrodotoxin affected responses to [Lys 5 MeLeu 9 Nle 10]NKA(4–10). These data are consistent with a role of tachykinins in the regulation of human uterine function, and reinforce the importance of NK 2 receptors in the regulation of myometrial contraction. British Journal of Pharmacology (2003) 139, 523–532. doi:10.1038/sj.bjp.0705279

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  1. Lentner C. Vol. 2, 8th edn. Bosle, p. 214. Switzerland: Ciba-Geigy Ltd
  2. Maggi, C.A. pp. 423 -466. Switzerland: Harwood Academic Publishers.

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Authors
Patak, E., Luz Candenas, M., Pennefather, J. N., Ziccone, S., Lilley, A., Martín, J. D., Flores, C., Mantecón, A. G., Story, M. E., & Pinto, F. M.
Affiliations
  • Royal Women's Hospital (AU)
  • Hospital Universitario Nuestra Señora de Candelaria (ES)
  • Centro de Investigaciones Científicas Isla de la Cartuja (ES)
  • Monash University (AU)
Corresponding author
Pennefather, Jocelyn N
Venue
British Journal of Pharmacology
Publisher
Wiley
Published
2003-06
Volume
139
Issue
3
Pages
523-532
ISSN
  • 0007-1188 (ISSN-L)
  • 1476-5381
OpenAlex
W1980556620
Cited by
82
References
72
Citations by year
2026: 1 · 2023: 1 · 2022: 6 · 2021: 1 · 2020: 1 · 2019: 5 · 2018: 2 · 2016: 3 · 2015: 1 · 2014: 5 · 2013: 2 · 2012: 5
FWCI
2.08
Type
journal article
Language
en
Open access
Locations
  • British Journal of Pharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
  • Health Sciences › Medicine › Surgery › Cardiovascular, Neuropeptides, and Oxidative Stress Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
Keywords
tachykinins, tachykinin receptors, myometrium, preprotachykinin, neprilysin, neurokinin B, hemokinin-1, NK2 receptor, neurokinin-1 receptor, NK3 receptor, substance P, neurokinin A, pregnancy, receptor mRNA expression, protease inhibitors
MeSH terms
Adult, Aged, Analysis of Variance, Dose-Response Relationship, Drug, Female, Humans, Middle Aged, Muscle Contraction, Pregnancy, RNA, Messenger, Uterus, Neprilysin, Tachykinins, Receptors, Tachykinin

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