Evidence map›Paper›PMID 19790106›Full record

ArticleDevelopmental neurobiology2009

Activity of nAChRs containing alpha9 subunits modulates synapse stabilization via bidirectional signaling programs.

Vidya Murthy, Julián Taranda, A Belén Elgoyhen, Douglas E Vetter

Open access · bronzeAbstract read
In one paragraph

Article in Developmental neurobiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

26 citing papers in PubMed, 32 citations in OpenAlex.

  1. Genetic tools for studying cochlear inhibition.Frontiers in cellular neuroscience · 2024
    Review
  2. Article
  3. Article
  4. Hair cell α9α10 nicotinic acetylcholine receptor functional expression regulated by ligand binding and deafness gene products.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  5. Article
  6. Enhancement of the Medial Olivocochlear System Prevents Hidden Hearing Loss.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Retrograde facilitation of efferent synapses on cochlear hair cells.Journal of the Association for Research in Otolaryngology : JARO · 2013
    Article
  19. Article
  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

4 authors at 3 institutions in 2 countries.

Vidya MurthyDepartment of Neuroscience, Tufts University School of Medicine, Boston, Massachusetts, USA.
Julián Taranda
A Belén Elgoyhen
Douglas E Vetter
Tufts University · USConsejo Nacional de Investigaciones Científicas y Técnicas · ARUniversity of Buenos Aires · AR

Funding

Imaging Core PlanP30DC005209 · NIDCD · MASSACHUSETTS EYE AND EAR INFIRMARY · PI LIBERMAN, M. CHARLES · 2002 to 2016
$12.0M
TUSM/T-NEMC CENTER FOR NEUROSCIENCE RESEARCH - Imaging CoreP30NS047243 · NINDS · TUFTS UNIVERSITY BOSTON · PI JACKSON, F ROB · 2003 to 2017
$10.0M
Investigations into the mouse olivocochlear systemR01DC006258 · NIDCD · TUFTS UNIVERSITY BOSTON · PI VETTER, DOUGLAS E · 2004 to 2008
$1.9M
Howard Hughes Medical InstituteNIDCD NIH HHS P30 DC005209NIDCD NIH HHS P30 DC05209NIDCD NIH HHS R01 DC006258NIDCD NIH HHS R01DC006258NINDS NIH HHS P30 NS047243
6 · The paper itself

Abstract

Although the synaptogenic program for cholinergic synapses of the neuromuscular junction is well known, little is known of the identity or dynamic expression patterns of proteins involved in non-neuromuscular nicotinic synapse development. We have previously demonstrated abnormal presynaptic terminal morphology following loss of nicotinic acetylcholine receptor (nAChR) alpha9 subunit expression in adult cochleae. However, the molecular mechanisms underlying these changes have remained obscure. To better understand synapse formation and the role of cholinergic activity in the synaptogenesis of the inner ear, we exploit the nAChR alpha9 subunit null mouse. In this mouse, functional acetylcholine (ACh) neurotransmission to the hair cells is completely silenced. Results demonstrate a premature, effusive innervation to the synaptic pole of the outer hair cells in alpha9 null mice coinciding with delayed expression of cell adhesion proteins during the period of effusive contact. Collapse of the ectopic innervation coincides with an age-related hyperexpression pattern in the null mice. In addition, we document changes in expression of presynaptic vesicle recycling/trafficking machinery in the alpha9 null mice that suggests a bidirectional information flow between the target of the neural innervation (the hair cells) and the presynaptic terminal that is modified by hair cell nAChR activity. Loss of nAChR activity may alter transcriptional activity, as CREB binding protein expression is decreased coincident with the increased expression of N-Cadherin in the adult alpha9 null mice. Finally, by using mice expressing the nondesensitizing alpha9 L9'T point mutant nAChR subunit, we show that increased nAChR activity drives synaptic hyperinnervation.

Indexed as

AcetylcholineAge FactorsAnalysis of VarianceAnimalsAuditory PathwaysBlotting, WesternCell Adhesion MoleculesEar, InnerFluorescent Antibody TechniqueMiceMice, KnockoutMicroscopy, ConfocalNeuronsProtein SubunitsReceptors, NicotinicSynapsesAcetylcholineCell Adhesion MoleculesProtein SubunitsReceptors, Nicotinic

Identifiers

PMID19790106
PMCPMC2819290
OpenAlexW2147661861

What OpenQuestion holds

Textmetadata
LicenceTDM
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.