Evidence map›Paper›PMID 19507004›Full record

ArticleMolecular and cellular biochemistry2009

QGP-1 cells release 5-HT via TRPA1 activation; a model of human enterochromaffin cells.

Hitoshi Doihara, Katsura Nozawa, Ryosuke Kojima, Eri Kawabata-Shoda, Toshihide Yokoyama, Hiroyuki Ito

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular and cellular biochemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 21% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Enterochromaffin cells as a cellular integration hub for cooperative microbial signaling to modulate gut serotonin and motility.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  9. Carcinoid Syndrome: Preclinical Models and Future Therapeutic Strategies.International journal of molecular sciences · 2023
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  19. Review
  20. Article
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 1 institution in 1 country.

Hitoshi DoiharaPharmacology Laboratories, Drug Discovery Research, Astellas Pharma Inc, 21 Miyukigaoka, Tsukuba, Ibaraki, 305-8585, Japan. hitoshi.doihara@jp.astellas.com
Katsura Nozawa
Ryosuke Kojima
Eri Kawabata-Shoda
Toshihide Yokoyama
Hiroyuki Ito
Astellas Pharma (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently, we discovered that transient receptor potential ankyrin1 channel (TRPA1) is highly expressed in human and rat enterochromaffin (EC) cells, and those TRPA1 agonists such as allyl isothiocyanates (AITC) and cinnamaldehyde (CA) enhance the release of serotonin (5-hydroxytryptamine; 5-HT) from EC cells in vitro. In this study, QGP-1 cells, a human pancreatic endocrine cell line, were found to highly express TRPA1 and EC cell marker genes, such as tryptophan hydroxylase 1 (TPH1), chromogranin A (CgA), synaptophysin, ATP-dependent vesicular monoamine transporter 1 (VMAT1), metabotropic glutamate receptor 4 (mGluR4), beta1-adrenergic receptor (ADB1), muscarinic 4 acetylcholine receptor (ACM4), substance P, serotonin transporter (SERT), and guanylin. Furthermore, the TRPA1 agonists AITC, CA, and acrolein concentration dependently evoked an increase in intracellular Ca(2+) influx and the release of 5-HT in QGP-1 cells. The effects of these TRPA1 agonists were inhibited by ruthenium red, a TRPA1 antagonist, and TRPA1-specific siRNA. These results indicate that the Ca(2+) influx increase and 5-HT release induced by AITC, CA and acrolein in QGP-1 cells were mediated by TRPA1, and that the QGP-1 cell line could be a new model for the investigation of TRPA1 function in the human EC cell.

Indexed as

Models, BiologicalAcroleinBiological AssayBiomarkersCalciumCalcium ChannelsCell LineEnterochromaffin CellsGene Expression RegulationHumansIon Channel GatingIsothiocyanatesNerve Tissue ProteinsRNA, MessengerRNA, Small InterferingSerotoninAcroleinallyl isothiocyanateBiomarkersCalciumCalcium ChannelscinnamaldehydeIsothiocyanatesNerve Tissue ProteinsRNA, MessengerRNA, Small InterferingSerotoninTPH1 protein, humanTransient Receptor Potential ChannelsTRPA1 Cation ChannelTRPA1 protein, humanTryptophan Hydroxylase

Identifiers

PMID19507004
OpenAlexW2028720625

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.