Evidence map›Paper›PMID 23203156›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2013

Sensing of amino acids by the gut-expressed taste receptor T1R1-T1R3 stimulates CCK secretion.

Kristian Daly, Miran Al-Rammahi, Andrew Moran, Marco Marcello, Yuzo Ninomiya, Soraya P Shirazi-Beechey

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
7.8field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 188 citations in OpenAlex.

  1. Trial
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  13. The Enteric Neuronal Circuitry: A Key Ignored Player in Nutrient Sensing Along the Gut-Brain Axis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Review
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  15. Review
  16. Review
  17. Article
  18. Article
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24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Kristian DalyEpithelial Function and Development Group, Department of Functional and Comparative Genomics, University of Liverpool, Liverpool, UK.
Miran Al-Rammahi
Andrew Moran
Marco Marcello
Yuzo Ninomiya
Soraya P Shirazi-Beechey
University of Liverpool · GBKyushu University · JP

Funding

Wellcome Trust
6 · The paper itself

Abstract

CCK is secreted by endocrine cells of the proximal intestine in response to dietary components, including amino acids. CCK plays a variety of roles in digestive processes, including inhibition of food intake, consistent with a role in satiety. In the lingual epithelium, the sensing of a broad spectrum of L-amino acids is accomplished by the heteromeric amino acid (umami) taste receptor (T1R1-T1R3). T1R1 and T1R3 subunits are also expressed in the intestine. A defining characteristic of umami sensing by T1R1-T1R3 is its potentiation by IMP or GMP. Furthermore, T1R1-T1R3 is not activated by Trp. We show here that, in response to L-amino acids (Phe, Leu, Glu, and Trp), but not D-amino acids, STC-1 enteroendocrine cells and mouse proximal small intestinal tissue explants secrete CCK and that IMP enhances Phe-, Leu-, and Glu-induced, but not Trp-induced, CCK secretion. Furthermore, small interfering RNA inhibition of T1R1 expression in STC-1 cells results in significant diminution of Phe-, Leu-, and Glu-stimulated, but not Trp-stimulated, CCK release. In STC-1 cells and mouse intestine, gurmarin inhibits Phe-, Leu-, and Glu-induced, but not Trp-stimulated, CCK secretion. In contrast, the Ca(2+)-sensing receptor antagonist NPS2143 inhibits Phe-stimulated CCK release partially and Trp-induced CCK secretion totally in mouse intestine. However, NPS2143 has no effect on Leu- or Glu-induced CCK secretion. Collectively, our data demonstrate that functional characteristics and cellular location of the gut-expressed T1R1-T1R3 support its role as a luminal sensor for Phe-, Leu-, and Glu-induced CCK secretion.

Indexed as

Amino AcidsAnimalsBlotting, WesternCell MembraneCells, CulturedCholecystokininFemaleGastrointestinal TractImmunohistochemistryInositol PhosphatesIsomerismMaleMiceMice, Inbred C57BLMicroscopy, ConfocalNaphthalenesAmino AcidsCholecystokininGurmarin protein, Gymnema sylvestreInositol PhosphatesN-(2-hydroxy-3-(2-cyano-3-chlorophenoxy)propyl)-1,1-dimethyl-2-(2-nephthyl)ethylamineNaphthalenesPeptidesPlant ProteinsProtein HydrolysatesReceptors, G-Protein-Coupledtaste receptors, type 1

Identifiers

PMID23203156
PMCPMC3566511
OpenAlexW2144267405

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.