Evidence map›Paper›PMID 27185948›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Tissue-specific dynamin-1 deletion at the calyx of Held decreases short-term depression through a mechanism distinct from vesicle resupply.

Satyajit Mahapatra, Fan Fan, Xuelin Lou

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.3field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Dynamin deficiency causes insulin secretion failure and hyperglycemia.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Exocytosis, Endocytosis, and Their Coupling in Excitable Cells.Frontiers in molecular neuroscience · 2017
    Review
  14. Review
  15. Dynamin 1- and 3-Mediated Endocytosis Is Essential for the Development of a Large Central Synapse In Vivo.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    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

3 authors at 1 institution in 1 country.

Satyajit MahapatraDepartment of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53706.
Fan FanDepartment of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53706.
Xuelin LouDepartment of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53706 xlou3@wisc.edu.ORCID 0000-0002-0576-8575
University of Wisconsin–Madison · US

Funding

Regulated exocytosis and endocytosis coupling in pancreatic endocrine cellsR01DK093953 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI LOU, XUELIN · 2011 to 2015
$1.6M
Assistant Professor of Physiology in Synaptic FunctionP30NS069271 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI JACKSON, MEYER B. · 2009 to 2010
$1.3M
NIDDK NIH HHS R01 DK093953NINDS NIH HHS P30 NS069271
6 · The paper itself

Abstract

Dynamin is a large GTPase with a crucial role in synaptic vesicle regeneration. Acute dynamin inhibition impairs neurotransmitter release, in agreement with the protein's established role in vesicle resupply. Here, using tissue-specific dynamin-1 knockout [conditional knockout (cKO)] mice at a fast central synapse that releases neurotransmitter at high rates, we report that dynamin-1 deletion unexpectedly leads to enhanced steady-state neurotransmission and consequently less synaptic depression during brief periods of high-frequency stimulation. These changes are also accompanied by increased transmission failures. Interestingly, synaptic vesicle resupply and several other synaptic properties remain intact, including basal neurotransmission, presynaptic Ca(2+) influx, initial release probability, and postsynaptic receptor saturation and desensitization. However, acute application of Latrunculin B, a reagent known to induce actin depolymerization and impair bulk and ultrafast endocytosis, has a stronger effect on steady-state depression in cKO than in control and brings the depression down to a control level. The slow phase of presynaptic capacitance decay following strong stimulation is impaired in cKO; the rapid capacitance changes immediately after strong depolarization are also different between control and cKO and sensitive to Latrunculin B. These data raise the possibility that, in addition to its established function in regenerating synaptic vesicles, the endocytosis protein dynamin-1 may have an impact on short-term synaptic depression. This role comes into play primarily during brief high-frequency stimulation.

Indexed as

Action PotentialsAnimalsDepressionDynamin IEndocytosisExcitatory Postsynaptic PotentialsFemaleFluorescent Antibody TechniqueMaleMiceMice, KnockoutNeuronsOrgan SpecificityPatch-Clamp TechniquesSynapsesSynaptic TransmissionDynamin Iactinbulk endocytosisdynaminrelease site clearanceshort-term plasticity

Identifiers

PMID27185948
PMCPMC4896691
OpenAlexW2380195132

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.