Evidence map›Paper›PMID 22956545›Full record

ArticleJournal of cell science2012

The ATP permeability of pannexin 1 channels in a heterologous system and in mammalian taste cells is dispensable.

Roman A Romanov, Marina F Bystrova, Olga A Rogachevskaya, Vladimir B Sadovnikov, Valery I Shestopalov, Stanislav S Kolesnikov

Abstract read
In one paragraph

Article in Journal of cell science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
7.3field-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

74 citing papers in PubMed, 112 citations in OpenAlex.

  1. Article
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  5. Article
  6. Review
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  8. Review
  9. Article
  10. Review
  11. Review
  12. Pharmacology of pannexin channels.Current opinion in pharmacology · 2023
    Review
  13. Article
  14. Astrocyte and neuronal Panx1 support long-term reference memory in mice.bioRxiv : the preprint server for biology · 2023
    Article
  15. Article
  16. ER-resident STIM1/2 couples CaProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Endogenous pannexin1 channels form functional intercellular cell-cell channels with characteristic voltage-dependent properties.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  18. Pannexin1 channels-a potential therapeutic target in inflammation.Frontiers in cell and developmental biology · 2022
    Review
  19. Review
  20. Purinergic neurotransmission in the gustatory system.Autonomic neuroscience : basic & clinical · 2021
    Article

14 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 3 institutions in 2 countries.

Roman A RomanovInstitute of Cell Biophysics, Russian Academy of Sciences, Institutional Street 3, Pushchino, Moscow Region, 142290, Russia.
Marina F Bystrova
Olga A Rogachevskaya
Vladimir B Sadovnikov
Valery I Shestopalov
Stanislav S Kolesnikov
Institute of Cell Biophysics · RUInstitute of Bioorganic Chemistry · RUUniversity of Miami · US

Funding

The Role of Pannexin 1 Pathway in Ocular Hypertension Injury of Retinal Ganglion CellsR01EY021517 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SHESTOPALOV, VALERY I · 2012 to 2020
$3.1M
NEI NIH HHS EY021517NEI NIH HHS R01 EY021517
6 · The paper itself

Abstract

Afferent output in type II taste cells is mediated by ATP liberated through ion channels. It is widely accepted that pannexin 1 (Panx1) channels are responsible for ATP release in diverse cell types, including taste cells. While biophysical evidence implicates slow deactivation of ion channels following ATP release in taste cells, recombinant Panx1 activates and deactivates rapidly. This inconsistency could indicate that the cellular context specifies Panx1 functioning. We cloned Panx1 from murine taste tissue, and heterologously expressed it in three different cell lines: HEK-293, CHO and neuroblastoma SK-N-SH cells. In all three cell lines, Panx1 transfection yielded outwardly rectifying anion channels that exhibited fast gating and negligible permeability to anions exceeding 250 Da. Despite expression of Panx1, the host cells did not liberate ATP upon stimulation, making it unclear whether Panx1 is involved in taste-related ATP secretion. This issue was addressed using mice with genetic ablation of the Panx1 gene. The ATP-biosensor assay revealed that, in taste cells devoid of Panx1, ATP secretion was robust and apparently unchanged compared with the control. Our data suggest that Panx1 alone forms a channel that has insufficient permeability to ATP. Perhaps, a distinct subunit and/or a regulatory circuit that is absent in taste cells is required to enable a high ATP-permeability mode of a native Panx1-based channel.

Indexed as

Adenosine TriphosphateAnimalsAnionsCarbenoxoloneCHO CellsConnexinsCricetinaeCricetulusHEK293 CellsHumansIon Channel GatingMammalsMiceMice, Inbred C57BLMice, KnockoutNerve Tissue ProteinsAdenosine TriphosphateAnionsCarbenoxoloneConnexinsNerve Tissue ProteinsPanx1 protein, mouse

Identifiers

PMID22956545
PMCPMC3561859
OpenAlexW2154979821

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.