Evidence map›Paper›PMID 12569163›Full record

ArticleThe Journal of clinical investigation2003

P2Y6 receptor mediates colonic NaCl secretion via differential activation of cAMP-mediated transport.

Michael Köttgen, Thomas Löffler, Christoph Jacobi, Roland Nitschke, Hermann Pavenstädt, Rainer Schreiber, Sebastian Frische, Søren Nielsen, Jens Leipziger

Open access · greenAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 75 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. P2Y6 receptor and immunoinflammation.Neuroscience bulletin · 2009
    Review
  17. Article
  18. P2Y receptors mediate Ca2+ signaling in duodenocytes and contribute to duodenal mucosal bicarbonate secretion.American journal of physiology. Gastrointestinal and liver physiology · 2009
    Article
  19. Interaction of P2 purinergic receptors with cellular macromolecules.Naunyn-Schmiedeberg's archives of pharmacology · 2008
    Review
  20. Review
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

9 authors at 3 institutions in 2 countries.

Michael KöttgenMedizinische Universitätsklinik, Freiburg, Germany.
Thomas Löffler
Christoph Jacobi
Roland Nitschke
Hermann Pavenstädt
Rainer Schreiber
Sebastian Frische
Søren Nielsen
Jens Leipziger
University of Freiburg · DEAarhus University · DKUniversity Medical Center Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extracellular nucleotides are important regulators of epithelial ion transport. Here we investigated nucleotide-mediated effects on colonic NaCl secretion and the signal transduction mechanisms involved. Basolateral UDP induced a sustained activation of Cl(-) secretion, which was completely inhibited by 293B, a specific inhibitor of cAMP-stimulated basolateral KCNQ1/KCNE3 K(+) channels. We therefore speculated that a basolateral P2Y(6) receptor could increase cAMP. Indeed UDP elevated cAMP in isolated crypts. We identified an epithelial P2Y(6) receptor using crypt [Ca(2+)](i) measurements, RT-PCR, and immunohistochemistry. To investigate whether the rat P2Y(6)elevates cAMP, we coexpressed the P2Y(1) or P2Y(6) receptor together with the cAMP-regulated cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel in Xenopus oocytes. A two-electrode voltage clamp was used to monitor nucleotide-induced Cl(-) currents. In oocytes expressing the P2Y(1) receptor, ATP transiently activated the endogenous Ca(2+)-activated Cl(-) current, but not CFTR. In contrast, in oocytes expressing the P2Y(6)receptor, UDP transiently activated the Ca(2+)-activated Cl(-) current and subsequently CFTR. CFTR Cl(-) currents were identified by their halide conductance sequence. In summary we find a basolateral P2Y(6) receptor in colonic epithelial cells stimulating sustained NaCl secretion by way of a synergistic increase of [Ca(2+)](i) and cAMP. In support of these data P2Y(6) receptor stimulation differentially activates CFTR in Xenopus oocytes.

Indexed as

1-Methyl-3-isobutylxanthineAdenosine TriphosphateAnimalsBiological TransportCloning, MolecularColonCyclic AMPDose-Response Relationship, DrugImmunohistochemistryMicroscopy, VideoOocytesRatsReceptors, Purinergic P2Reverse Transcriptase Polymerase Chain ReactionSodium ChlorideXenopus1-Methyl-3-isobutylxanthineAdenosine TriphosphateCyclic AMPpurinoceptor P2Y6Receptors, Purinergic P2Sodium Chloride

Identifiers

PMID12569163
PMCPMC151859
OpenAlexW2140033553

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.