Evidence map›Paper›PMID 11251051›Full record

ArticleThe Journal of physiology2001

Purinergic control of intercellular communication between Hensen's cells of the guinea-pig cochlea.

L Lagostena, J F Ashmore, B Kachar, F Mammano

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Intercellular CaThe Journal of physiology · 2019
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. ATP activates P2X receptors to mediate gap junctional coupling in the cochlea.Biochemical and biophysical research communications · 2012
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Developmental regulation of spontaneous activity in the Mammalian cochlea.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  18. Review
  19. Article
  20. What's new in ion transports in the cochlea?Pflugers Archiv : European journal of physiology · 2006
    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

4 authors at 3 institutions in 3 countries.

L LagostenaSettore di Biofisica e Istituto Nazionale di Fisica della Materia, Scuola Internazionale Superiore di Studi Avanzati (SISSA), 34014 Trieste, Italy.
J F Ashmore
B Kachar
F Mammano
Scuola Internazionale Superiore di Studi Avanzati · ITNational Institute on Deafness and Other Communication Disorders · USUniversity College London · GB

Funding

Structural and Molecular Basis of Transduction in Auditory Sensory OrgansZIADC000002 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI KACHAR, BECHARA · 2009 to 2025
$38.3M
MOLECULAR BASIS OF TRANSDUCTION IN AUDITORY SENSORY ORGANSZ01DC000002 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI KACHAR, BECHARA · 1989 to 2008
$3.9M
Wellcome Trust
6 · The paper itself

Abstract

1. Hensen's cells in the isolated cochlea were stimulated by extracellular adenosine 5'-triphosphate (ATP) applied to their endolymphatic surface while changes in membrane current and intracellular calcium concentration ([Ca2+]i) were measured simultaneously. The response consisted of (i) an initial rapid inward current accompanied by elevation of the [Ca2+]i, (ii) a more slowly rising inward current accompanied by a rise of the [Ca2+]i and (iii) a slowly developing reduction of input conductance. 2. The slower responses were maintained in the absence of extracellular Ca2+. Similar responses were produced by increasing the [Ca2+]i via UV flash photolysis of intracellular D-myo-inositol 1,4,5-trisphosphate, P4(5)-(1-(2-nitrophenyl)ethyl) ester (caged InsP3) loaded at pipette concentrations of 8-16 microM. 3. The slow inward current, reversing around 0 mV, was blocked by 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid (DIDS). 4. Bath application of U-73122 (1 microM), a phospholipase C inhibitor, eliminated the slow Ca2+-release component of the response to ATP. It is proposed that the effects of ATP are mediated by the co-activation of ionotropic P2X and metabotropic P2Y receptors. 5. Immunohistochemistry using light and electron microscopy revealed that inositol 1,4,5-trisphosphate (InsP3) receptors delineate a network within the cells. 6. The coupling ratio (CR) between cell pairs measured in dual patch-clamp recordings was 0.356 +/- 0.024. The coupling reversibly decreased to 51 % of the control within 2 min of applying 100 microM ATP. Flash photolysis of 32 microM intracellular caged InsP3 and 1 mM caged Ca2+ reduced CR to 42 and 62 % of the control, respectively. 7. We propose that endolymphatic ATP via P2X and P2Y receptors can control intercellular communication amongst Hensen's cells by reducing gap junction conductance in a Ca2+- and InsP3-dependent manner.

Indexed as

Adenosine TriphosphateAnimalsCalciumCell CommunicationCochleaElectric ConductivityEnzyme InhibitorsExtracellular SpaceGuinea PigsImmunohistochemistryInositol 1,4,5-TrisphosphateIntracellular MembranesPhotolysisPurinesTime FactorsType C PhospholipasesAdenosine TriphosphateCalciumEnzyme InhibitorsInositol 1,4,5-TrisphosphateP(3)-1-(2-nitro)phenylethyladenosine 5'-triphosphatePurinesType C Phospholipases

Identifiers

PMID11251051
PMCPMC2278490
OpenAlexW2122710090

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.