Evidence map›Paper›PMID 24035894›Full record

ArticleNeuroscience letters2013

Decreased dendritic spine density as a consequence of tetanus toxin light chain expression in single neurons in vivo.

Victoria Heimer-McGinn, Anita C H Murphy, Jun Chul Kim, Susan M Dymecki, Paul W Young

Abstract read
In one paragraph

Article in Neuroscience letters, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.3field-weighted citation impact, top 45% 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

9 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. The Glymphatic System: A Novel Component of Fundamental Neurobiology.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. L-Type Voltage-Gated CaCell reports · 2017
    Article
  7. Article
  8. Article
  9. Article
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

5 authors at 2 institutions in 2 countries.

Victoria Heimer-McGinnSchool of Biochemistry and Cell Biology, University College Cork, Cork, Ireland; Department of Cognitive, Linguistic and Psychological Sciences, Brown University, Providence, RI 02912, USA. Electronic address: victoria_heimer-mcginn@brown.edu.
Anita C H Murphy
Jun Chul Kim
Susan M Dymecki
Paul W Young
University College Cork · IEHarvard University · US

Funding

Mapping neuronal circuits in mice with high selectivityR01DK067826 · NIDDK · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI DYMECKI, SUSAN M. · 2004 to 2007
$1.7M
Novel tools to study circuit function, development, and periods of vulnerabilityR21MH083613 · NIMH · HARVARD MEDICAL SCHOOL · PI DYMECKI, SUSAN M. · 2008 to 2009
$709k
NIDDK NIH HHS R01 DK067826NIMH NIH HHS R21 MH083613
6 · The paper itself

Abstract

Tetanus toxin light chain has been used for some time as a genetically-encoded tool to inhibit neurotransmission and thereby dissect mechanisms underlying neural circuit formation and function. In addition to cleaving v-SNARE proteins involved in axonal neurotransmitter release, tetanus toxin light chain can also block activity-dependent dendritic exocytosis. The application of tetanus toxin light chain as a research tool in mammalian models, however, has been limited to a small number of cell types. Here we have induced expression of tetanus toxin light chain in a very small number of fluorescently labeled neurons in many regions of the adult mouse brain. This was achieved by crossing SLICK (single-neuron labeling with inducible cre-mediated knockout) transgenic lines with RC::Ptox mice that have Cre recombinase-controlled expression of the tetanus toxin light chain. Using this system we have examined the cell-autonomous effects of tetanus toxin light chain expression on dendritic spines in vivo. We find that dendritic spine density is reduced by 15% in tetanus toxin expressing hippocampal CA1 pyramidal cells, while spine morphology is unaltered. This effect is likely to be a consequence of inhibition of activity-dependent dendritic exocytosis and suggests that on-going plasticity-associated exocytosis is required for long-term dendritic spine maintenance in vivo.

Indexed as

AnimalsDendritic SpinesGreen Fluorescent ProteinsHippocampusIn Vitro TechniquesMetalloendopeptidasesMiceMice, TransgenicNeuronsRecombinant Fusion ProteinsTetanus ToxinGreen Fluorescent ProteinsMetalloendopeptidasesRecombinant Fusion ProteinsTetanus Toxinzinc-endopeptidase, tetanus neurotoxinDendritic exocytosisDendritic spinesInterneuronal competitionSLICKTetanus toxin light chain

Identifiers

PMID24035894
PMCPMC4035819
OpenAlexW2066549790

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.