ArticlePloS one2020
Ultrastructure of light-activated axons following optogenetic stimulation to produce late-phase long-term potentiation.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
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.
Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Hippocampal Commissural Circuitry Shows Asymmetric cAMP-Dependent Synaptic Plasticity.ACS chemical neuroscience · 2025Article
- Ultrastructural analysis of synapses after induction of spike-timing-dependent plasticity.Cell reports methods · 2025Article
- Targeting the insular cortex for neuropathic pain modulation: Insights into synaptic and neuronal mechanisms.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025Article
- Opto-CLIP reveals dynamic FMRP regulation of mRNAs upon CA1 neuronal activation.bioRxiv : the preprint server for biology · 2025Article
- Review of Post-embedding Immunogold Methods for the Study of Neuronal Structures.Frontiers in neuroanatomy · 2021Review
- Ultrastructural Imaging of Activity-Dependent Synaptic Membrane-Trafficking Events in Cultured Brain Slices.Neuron · 2020Article
- Structural LTP: from synaptogenesis to regulated synapse enlargement and clustering.Current opinion in neurobiology · 2020Review
- Synaptic Odyssey.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Analysis of neuronal compartments has revealed many state-dependent changes in geometry but establishing synapse-specific mechanisms at the nanoscale has proven elusive. We co-expressed channelrhodopsin2-GFP and mAPEX2 in a subset of hippocampal CA3 neurons and used trains of light to induce late-phase long-term potentiation (L-LTP) in area CA1. L-LTP was shown to be specific to the labeled axons by severing CA3 inputs, which prevented back-propagating recruitment of unlabeled axons. Membrane-associated mAPEX2 tolerated microwave-enhanced chemical fixation and drove tyramide signal amplification to deposit Alexa Fluor dyes in the light-activated axons. Subsequent post-embedding immunogold labeling resulted in outstanding ultrastructure and clear distinctions between labeled (activated), and unlabeled axons without obscuring subcellular organelles. The gold-labeled axons in potentiated slices were reconstructed through serial section electron microscopy; presynaptic vesicles and other constituents could be quantified unambiguously. The genetic specification, reliable physiology, and compatibility with established methods for ultrastructural preservation make this an ideal approach to link synapse ultrastructure and function in intact circuits.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.