ArticleEndocrine2002
Characterization of oxytocin receptors and serotonin transporters in mast cells.
Article in Endocrine, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 14 citations in OpenAlex.
- Salivary cortisol responses to acute stress vary between allergic and healthy individuals: the role of plasma oxytocin, emotion regulation strategies, reported stress and anxiety.Stress (Amsterdam, Netherlands) · 2020Article
- Mast Cells Populate the Corneoscleral Limbus: New Insights for Our Understanding of Limbal Microenvironment.Investigative ophthalmology & visual science · 2020Article
- Article
- Serotonin of mast cell origin contributes to hippocampal function.The European journal of neuroscience · 2012Article
- Breast milk: friend or foe?BMJ case reports · 2011Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oxytocin (OT) inhibits the uptake of serotonin (5HT) into uterine mast cells. This may modulate 5HT bioavailability in the myometrium. Because 5HT isan important endogenous uterotonic compound, it has been postulated that this effect of OT may contribute to its potency as a labor inducer. This also predicts the presence of oxytocin receptors (OTRs) and transducing signals that will interact with 5HT transporters (SERT) in mast cells. In this study, OTR and SERT were characterized in murine peritoneal mast cells by radioligand-binding studies. Saturation assays for OTR showed no changes in Kd along the estrous cycle (6.95 +/- 2.76 nM in estrus and 4.07 +/- 1.73 nM in diestrus) but an increase in Bmax in estrus (0.71 +/- 0.08 pmol/10(6) cells and 0.37 +/- 0.05 pmol/10(6) cells in estrus and diestrus, respectively). Bmax and Kd for SERT were not affected along the estrous cycle. The signaling between the OTR and the SERT was analyzed by measuring the extent of inhibition of OT and PMA (activator of protein kinase C on 5HT uptake and the capability of Ro318220 (specific inhibitor of PKC) to increase 5HT uptake and block the effect of the above compounds in mast cells. The results showed that in murine peritoneal mast cells in vitro (1) ovarian hormones modulate OTR but not SERT expression, (2) the magnitude of OT action on 5HT uptake depends on the number of OTRs expressed in mast cells, and (3) the signaling between OTR and the SERT is mediated through the activation of protein kinase C. It is concluded that the ovarian hormones have a modulatory action on 5HT uptake which involves OT-mediated mechanism.
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Registered trials
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