Evidence map›Paper›PMID 19047197›Full record

ArticleThe Journal of physiology2009

Obligatory role for phosphatidylinositol 4,5-bisphosphate in activation of native TRPC1 store-operated channels in vascular myocytes.

Sohag N Saleh, Anthony P Albert, William A Large

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.9field-weighted citation impact, top 16% 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, 43 citations in OpenAlex.

  1. Impact of C-Terminal PKC Phosphorylation on TRPC6 Current Kinetics.International journal of molecular sciences · 2025
    Article
  2. Role for the PIPJournal of cell communication and signaling · 2024
    Review
  3. TRP Channels in Stroke.Neuroscience bulletin · 2024
    Review
  4. Article
  5. Obligatory role for PKCδ in PIPThe Journal of physiology · 2020
    Article
  6. PIPProceedings of the National Academy of Sciences of the United States of America · 2020
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Store depletion induces Gαq-mediated PLCβ1 activity to stimulate TRPC1 channels in vascular smooth muscle cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2016
    Article
  14. Review
  15. Article
  16. Phosphoinositide regulation of TRP channels.Handbook of experimental pharmacology · 2014
    Review
  17. Article
  18. Review
  19. Article
  20. Role of protein kinase C in the activation of store-operated Ca(2+) entry in airway smooth muscle cells.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2012
    Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Sohag N SalehIon Channels and Cell Signalling Research Centre, Division of Basic Medical Sciences, St George's, University of London, Cranmer Terrace, London, UK.
Anthony P Albert
William A Large
St George's, University of London · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

In the present study the effect of phosphatidylinositol 4,5-bisphosphate (PIP(2)) was studied on a native TRPC1 store-operated channel (SOC) in freshly dispersed rabbit portal vein myocytes. Application of diC8-PIP(2), a water soluble form of PIP(2), to quiescent inside-out patches evoked single channel currents with a unitary conductance of 1.9 pS. DiC8-PIP(2)-evoked channel currents were inhibited by anti-TRPC1 antibodies and these characteristics are identical to SOCs evoked by cyclopiazonic acid (CPA) and BAPTA-AM. SOCs stimulated by CPA, BAPTA-AM and the phorbol ester phorbol 12,13-dibutyrate (PDBu) were reduced by anti-PIP(2) antibodies and by depletion of tissue PIP(2) levels by pre-treatment of preparations with wortmannin and LY294002. However, these reagents did not alter the ability of PIP(2) to activate SOCs in inside-out patches. Co-immunoprecipitation techniques demonstrated association between TRPC1 and PIP(2) at rest, which was greatly decreased by wortmannin and LY294002. Pre-treatment of cells with PDBu, which activates protein kinase C (PKC), augmented SOC activation by PIP(2) whereas the PKC inhibitor chelerythrine decreased SOC stimulation by PIP(2). Co-immunoprecipitation experiments provide evidence that PKC-dependent phosphorylation of TRPC1 occurs constitutively and was increased by CPA and PDBu but decreased by chelerythrine. These novel results show that PIP(2) can activate TRPC1 SOCs in native vascular myocytes and plays an important role in SOC activation by CPA, BAPTA-AM and PDBu. Moreover, the permissive role of PIP(2) in SOC activation requires PKC-dependent phosphorylation of TRPC1.

Indexed as

1-Phosphatidylinositol 4-KinaseAndrostadienesAnimalsAntibodies, Phospho-SpecificBenzophenanthridinesChelating AgentsChromonesEgtazic AcidImmunologic FactorsImmunoprecipitationIndolesMembrane PotentialsMorpholinesMyocytes, Smooth MusclePhosphatidylinositol 4,5-DiphosphatePortal Vein1,2-bis(2-aminophenoxy)ethane N,N,N',N'-tetraacetic acid acetoxymethyl ester1-Phosphatidylinositol 4-Kinase2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneAndrostadienesAntibodies, Phospho-SpecificBenzophenanthridinesChelating AgentschelerythrineChromonescyclopiazonic acidEgtazic AcidImmunologic FactorsIndolesMorpholinesPhosphatidylinositol 4,5-DiphosphateProtein Kinase CProtein Kinase InhibitorsRo 31-8220transient receptor potential cation channel, subfamily C, member 1TRPC Cation ChannelsWortmannin

Identifiers

PMID19047197
PMCPMC2667327
OpenAlexW2137198348

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.