Evidence map›Paper›PMID 22069721›Full record

ArticleToxins2011

Alpha-latrotoxin rescues SNAP-25 from BoNT/A-mediated proteolysis in embryonic stem cell-derived neurons.

Mariano Mesngon, Patrick McNutt

Open access · goldAbstract read
In one paragraph

Article in Toxins, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Using Tinbergen's Four Questions as the Framework for a Neuroscience Capstone Course.Journal of undergraduate neuroscience education : JUNE : a publication of FUN, Faculty for Undergraduate Neuroscience · 2015
    Article
  8. Article
  9. Scorpion toxins for the reversal of BoNT-induced paralysis.Bioorganic & medicinal chemistry letters · 2013
    Article
  10. Article
  11. Article
  12. 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

2 authors at 1 institution in 1 country.

Mariano MesngonUnited States Army Medical Research Institute of Chemical Defense, 3100 Ricketts Point Road, Gunpowder, MD 21010, USA. patrick.mcnutt@us.army.mil
Patrick McNutt
United States Army · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The botulinum neurotoxins (BoNTs) exhibit zinc-dependent proteolytic activity against members of the core synaptic membrane fusion complex, preventing neurotransmitter release and resulting in neuromuscular paralysis. No pharmacologic therapies have been identified that clinically relieve botulinum poisoning. The black widow spider venom α-latrotoxin (LTX) has the potential to attenuate the severity or duration of BoNT-induced paralysis in neurons via the induction of synaptic degeneration and remodeling. The potential for LTX to antagonize botulinum poisoning was evaluated in embryonic stem cell-derived neurons (ESNs), using a novel screening assay designed around the kinetics of BoNT/A activation. Exposure of ESNs to 400 pM LTX for 6.5 or 13 min resulted in the nearly complete restoration of uncleaved SNAP-25 within 48 h, whereas treatment with 60 mM K(+) had no effect. Time-lapse imaging demonstrated that LTX treatment caused a profound increase in Ca(2+) influx and evidence of excitotoxicity, though ESNs remained viable 48 h after LTX treatment. This is the first instance of a cell-based treatment that has shown the ability to eliminate BoNT activity. These data suggest that LTX treatment may provide the basis for a new class of therapeutic approach to BoNT intoxication and may contribute to an improved understanding of long-term mechanisms of BoNT intoxication and recovery. They further demonstrate that ESNs are a novel, responsive and biologically relevant model for LTX research and BoNT therapeutic drug discovery.

Indexed as

AnimalsBotulinum Toxins, Type ACell DifferentiationCells, CulturedEmbryonic Stem CellsImmunoblottingMiceMicroscopy, ConfocalNeuronsProteolysisSpider VenomsSynaptosomal-Associated Protein 25Time-Lapse Imagingalpha-latrotoxinBotulinum Toxins, Type ASnap25 protein, mouseSpider VenomsSynaptosomal-Associated Protein 25alpha-latrotoxinbotulinum neurotoxinembryonic stem cell-derived neurons

Identifiers

PMID22069721
PMCPMC3202834
OpenAlexW2123099605

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.