Evidence map›Paper›PMID 17581958›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2007

Schwann cell-derived factors modulate synaptic activities at developing neuromuscular synapses.

Guan Cao, Chien-Ping Ko

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

17 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. When glia meet induced pluripotent stem cells (iPSCs).Molecular and cellular neurosciences · 2020
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Astrocytes Control Synapse Formation, Function, and Elimination.Cold Spring Harbor perspectives in biology · 2015
    Review
  11. Review
  12. Motoneuron replacement for reinnervation of skeletal muscle in adult rats.Journal of neuropathology and experimental neurology · 2012
    Article
  13. Review
  14. Review
  15. Roles of glial cells in synapse development.Cellular and molecular life sciences : CMLS · 2009
    Review
  16. Article
  17. Schwann cells promote synaptogenesis at the neuromuscular junction via transforming growth factor-beta1.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2008
    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.

Guan CaoSection of Neurobiology, Department of Biological Sciences, University of Southern California, Los Angeles, California 90089-2520, USA.
Chien-Ping Ko
Southern California University for Professional Studies · US

Funding

FORMATION &ELIMINATION OF SYNAPSESR01NS017954 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KO, CHIEN-PING · 1985 to 2005
$1.4M
NINDS NIH HHS NS17954NINDS NIH HHS R01 NS017954
6 · The paper itself

Abstract

Glial cells are active participants in the function, formation, and maintenance of the chemical synapse. To investigate the molecular basis of neuron-glia interactions at the peripheral synapse, we examined whether and how Schwann cell-derived factors modulate synaptic function at developing neuromuscular junctions (NMJs). Schwann cell-conditioned medium (SC-CM) from Xenopus Schwann cell cultures was collected and applied to Xenopus nerve-muscle cocultures. We found that SC-CM increased the frequency of spontaneous synaptic currents (SSCs) within 3-15 min by an average of approximately 150-fold at developing neuromuscular synapses. The increase in SSC frequency by SC-CM is a presynaptic effect independent of neuronal excitability and requires the influx of Ca2+. In contrast to its potentiating effect on spontaneous transmitter release, SC-CM suppressed the evoked transmitter release. The SC-CM effect required the presence of motoneuron soma but not protein synthesis. Using molecular weight cutoff filters and dialysis membranes, we found that the molecular weight of functional factor(s) in SC-CM was within 500 and 5000 Da. The SC-CM effect was not attributable to currently known factors that modulate synaptic efficacy, including neurotrophins, glutamate, and ATP. SC-CM also enhanced spontaneous synaptic release at developing NMJs in Xenopus tadpoles in situ. Our results suggest that Schwann cells release small molecules that enhance spontaneous synaptic activities acutely and potently at developing neuromuscular synapses, and the glial cell-enhanced spontaneous neurotransmission may contribute to synaptogenesis.

Indexed as

AnimalsCells, CulturedCulture Media, ConditionedNeuromuscular JunctionSchwann CellsSynapsesSynaptic TransmissionXenopus laevisCulture Media, Conditioned

Identifiers

PMID17581958
PMCPMC6672697
OpenAlexW2038487987

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.