Evidence map›Paper›PMID 35420542›Full record

ArticleeLife2022

Probing the segregation of evoked and spontaneous neurotransmission via photobleaching and recovery of a fluorescent glutamate sensor.

Camille S Wang, Natali L Chanaday, Lisa M Monteggia, Ege T Kavalali

Open access · goldAbstract read
In one paragraph

Article in eLife, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-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

21 citing papers in PubMed, 23 citations in OpenAlex.

  1. Lithium as a therapeutic strategy for SNAP25 encephalopathies via modulation of homeostatic plasticity.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  2. Review
  3. Review
  4. Review
  5. Review
  6. Synaptobrevin-2 disease variants reveal spatial constraints within the presynaptic active zone.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Spontaneous glutamate release activates mGluR signaling to drive rapid antidepressant responses.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Nanoscale architecture of synaptic vesicles and scaffolding complexes revealed by cryo-electron tomography.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Distinct SAP102 and PSD-95 Nano-organization Defines Multiple Types of Synaptic Scaffold Protein Domains at Single Synapses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  13. MDGAs perform activity-dependent synapse type-specific suppression via distinct extracellular mechanisms.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  14. Frequency of Spontaneous Neurotransmission at Individual Boutons Corresponds to the Size of the Readily Releasable Pool of Vesicles.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  15. Brain-derived neurotrophic factor scales presynaptic calcium transients to modulate excitatory neurotransmission.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  16. SV2B defines a subpopulation of synaptic vesicles.Journal of molecular cell biology · 2024
    Article
  17. Spatially non-overlapping CaCell reports · 2023
    Article
  18. Article
  19. Article
  20. Rapid homeostatic plasticity and neuropsychiatric therapeutics.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Review
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

4 authors at 2 institutions in 1 country.

Camille S WangVanderbilt Brain Institute, Vanderbilt University, Nashville, United States.ORCID 0000-0002-2178-5754
Natali L ChanadayDepartment of Pharmacology, Vanderbilt University, Nashville, United States.ORCID 0000-0002-3376-5187
Lisa M MonteggiaVanderbilt Brain Institute, Vanderbilt University, Nashville, United States.ORCID 0000-0003-0018-501X
Ege T KavalaliVanderbilt Brain Institute, Vanderbilt University, Nashville, United States.ORCID 0000-0003-1777-227X
Allen Institute for Brain Science · USVanderbilt University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007347 · NIGMS · VANDERBILT UNIVERSITY · PI WILLIAMS, CHRISTOPHER S. · 1985 to 2023
$26.3M
Overall: Eunice Kennedy Shriver Intellectual and Developmental Disabilities Research Center at VanderbiltP50HD103537 · NICHD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Lea K Davis · 2020 to 2026
$10.3M
ANTIDEPRESSANTS & INTRACELLULAR SIGNALING LINKED TO BDNFR01MH070727 · NIMH · VANDERBILT UNIVERSITY · PI LISA M MONTEGGIA · 2005 to 2026
$8.9M
Role of SNARE Interactions in Central Synapse FunctionR01MH066198 · NIMH · VANDERBILT UNIVERSITY · PI KAVALALI, EGE T · 2004 to 2023
$7.9M
Medical Scientist Training ProgramT32GM152284 · NIGMS · VANDERBILT UNIVERSITY · PI Christopher S. Williams · 2024 to 2026
$4.8M
MECP2 DEPENDENT TRANSCRIPTIONAL REPRESSION & NEUROTRANSMISSIONR01MH081060 · NIMH · VANDERBILT UNIVERSITY · PI MONTEGGIA, LISA M · 2008 to 2017
$3.7M
MeCP2 Dependent Transcriptional Repression & NeurotransmissionR56MH081060 · NIMH · VANDERBILT UNIVERSITY · PI MONTEGGIA, LISA M · 2021 to 2021
$396k
The effect of brain derived neurotrophic factor on presynaptic functionF30MH127808 · NIMH · VANDERBILT UNIVERSITY · PI WANG, CAMILLE · 2022 to 2023
$71k
NICHD NIH HHS P50 HD103537NIGMS NIH HHS T32 GM007347NIGMS NIH HHS T32 GM152284NIMH NIH HHS F30 MH127808NIMH NIH HHS R01 MH066198NIMH NIH HHS R01 MH070727NIMH NIH HHS R01 MH081060NIMH NIH HHS R56 MH081060
6 · The paper itself

Abstract

Synapses maintain both action potential-evoked and spontaneous neurotransmitter release; however, organization of these two forms of release within an individual synapse remains unclear. Here, we used photobleaching properties of iGluSnFR, a fluorescent probe that detects glutamate, to investigate the subsynaptic organization of evoked and spontaneous release in primary hippocampal cultures. In nonneuronal cells and neuronal dendrites, iGluSnFR fluorescence is intensely photobleached and recovers via diffusion of nonphotobleached probes with a time constant of ~10 s. After photobleaching, while evoked iGluSnFR events could be rapidly suppressed, their recovery required several hours. In contrast, iGluSnFR responses to spontaneous release were comparatively resilient to photobleaching, unless the complete pool of iGluSnFR was activated by glutamate perfusion. This differential effect of photobleaching on different modes of neurotransmission is consistent with a subsynaptic organization where sites of evoked glutamate release are clustered and corresponding iGluSnFR probes are diffusion restricted, while spontaneous release sites are broadly spread across a synapse with readily diffusible iGluSnFR probes.

Indexed as

Glutamic AcidSynaptic TransmissionHippocampusPhotobleachingSynapsesGlutamic Acidevoked releasefluorescence photobleachingglutamate releaseiGluSnFRneuroscienceratspontaneous releasesynaptic transmission

Identifiers

PMID35420542
PMCPMC9129874
OpenAlexW4226075027

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.