Evidence map›Paper›PMID 10856113›Full record

ArticleThe Journal of physiology2000

Disruption of actin impedes transmitter release in snake motor terminals.

J C Cole, B R Villa, R S Wilkinson

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.3field-weighted citation impact, top 13% 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

36 citing papers in PubMed, 86 citations in OpenAlex.

  1. Deciphering the Nanoscale Architecture of Presynaptic Actin Using a Micropatterned Presynapse-on-Glass Model.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Presynapses contain distinct actin nanostructures.The Journal of cell biology · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Microtubule and Actin Differentially Regulate Synaptic Vesicle Cycling to Maintain High-Frequency Neurotransmission.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  11. Article
  12. Review
  13. Actin Filaments Regulate Exocytosis at the Hair Cell Ribbon Synapse.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  14. The neuronal porosome complex in health and disease.Experimental biology and medicine (Maywood, N.J.) · 2016
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Dual pools of actin at presynaptic terminals.Journal of neurophysiology · 2012
    Article
  20. 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.

J C ColeDepartment of Cell Biology and Physiology, Washington University School of Medicine, St Louis, MO, USA.
B R Villa
R S Wilkinson
Washington University in St. Louis · US

Funding

DETERMINANTS OF SYNAPTIC STRENGTH IN MUSCLER37NS024752 · NINDS · WASHINGTON UNIVERSITY · PI WILKINSON, ROBERT S · 2001 to 2007
$2.1M
DETERMINANTS OF SYNAPTIC STRENGTH IN MUSCLER01NS024752 · NINDS · WASHINGTON UNIVERSITY · PI WILKINSON, ROBERT S · 1992 to 2013
$1.7M
DETERMINANTS OF SYNAPTIC STRENGTH IN MUSCLER29NS024752 · NINDS · WASHINGTON UNIVERSITY · PI WILKINSON, ROBERT S · 1987 to 1991
–
NINDS NIH HHS NS-24752NINDS NIH HHS R01 NS024752NINDS NIH HHS R37 NS024752
6 · The paper itself

Abstract

To investigate the role of actin in vertebrate nerve terminals, nerve-muscle preparations from garter snake (Thamnophis sirtalis) were treated with the actin-depolymerizing agent latrunculin A. Immunostaining revealed that actin filaments within presynaptic motor terminal boutons were disrupted by the drug. In preparations loaded with the optical probe FM1-43, destaining was reduced by latrunculin treatment, suggesting that transmitter release was partially blocked. Latrunculin treatment did not influence the amplitude or time course of spontaneous miniature endplate potentials (MEPPs). Similarly, endplate potentials (EPPs) evoked at low frequency were comparable in control and latrunculin-treated curarized preparations. Brief tetanic stimulation of the muscle nerve (25 Hz, 90 s) depressed EPP amplitudes in both control and latrunculin-treated preparations. After tetanus, EPPs elicited at 0. 2 Hz in control preparations recovered rapidly (0-5 min) and completely (usually potentiating to above pre-tetanus levels; 130 +/- 11 %, mean +/- s.e.m.). In contrast, EPPs evoked in latrunculin-treated preparations recovered slowly (8-10 min) and incompletely (84 +/- 8 %). The influence of latrunculin on post-tetanic EPPs depended on its concentration in the bath (KD = 3. 1 microM) and on time of incubation. These observations argue that actin filaments facilitate transmitter release rather than impede it. Specifically, actin may facilitate mobilization of vesicles towards the releasable pools.

Indexed as

ActinsAnimalsBridged Bicyclo Compounds, HeterocyclicColubridaeDose-Response Relationship, DrugElectrophysiologyEndocytosisFluorescent DyesMotor NeuronsPresynaptic TerminalsPyridinium CompoundsQuaternary Ammonium CompoundsSynaptic TransmissionSynaptic VesiclesThiazolesThiazolidinesActinsBridged Bicyclo Compounds, HeterocyclicFluorescent DyesFM1 43latrunculin APyridinium CompoundsQuaternary Ammonium CompoundsThiazolesThiazolidines

Identifiers

PMID10856113
PMCPMC2269967
OpenAlexW2132025143

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.