Evidence map›Paper›PMID 34343611›Full record

ReviewNeuropharmacology2021

Evolution of glutamatergic signaling and synapses.

Leonid L Moroz, Mikhail A Nikitin, Pavlin G Poličar, Andrea B Kohn, Daria Y Romanova

Open access · greenAbstract readReview
In one paragraph

Review in Neuropharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
6.0field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 76 citations in OpenAlex.

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  5. HS-AssociatedMicroorganisms · 2025
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  13. Intranasal Delivery of Lithium Salt Suppresses Inflammatory Pyroptosis in the Brain and Ameliorates Memory Loss and Depression-like Behavior in 5XFAD Mice.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025
    Article
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  15. Review
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  17. Making Neurobots and Chimerical Ctenophores.bioRxiv : the preprint server for biology · 2024
    Article
  18. Review
  19. Article
  20. Recording Cilia Activity in Ctenophores.Methods in molecular biology (Clifton, N.J.) · 2024
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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

5 authors at 4 institutions in 3 countries.

Leonid L MorozWhitney Laboratory for Marine Biosciences, University of Florida, St. Augustine, FL, 32080, USA; Departments of Neuroscience and McKnight Brain Institute, University of Florida, Gainesville, FL, 32610, USA. Electronic address: moroz@whitney.ufl.edu.
Mikhail A NikitinBelozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, 119991, Russia; Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, 127994, Russia.
Pavlin G PoličarWhitney Laboratory for Marine Biosciences, University of Florida, St. Augustine, FL, 32080, USA; Faculty of Computer and Information Science, University of Ljubljana, SI-1000, Ljubljana, Slovenia.
Andrea B KohnWhitney Laboratory for Marine Biosciences, University of Florida, St. Augustine, FL, 32080, USA.
Daria Y RomanovaCellular Neurobiology of Learning Lab, Institute of Higher Nervous Activity and Neurophysiology, Moscow, 117485, Russia. Electronic address: darjaromanova@gmail.com.
Whitney Museum of American Art · USInstitute of Higher Nervous Activity and Neurophysiology · RULomonosov Moscow State University · RUUniversity of Ljubljana · SI

Funding

Neuron-SELEX: Development of neuron-specific nanoscale toolkits for single-cell recognitionR01NS114491 · NINDS · UNIVERSITY OF FLORIDA · PI MOROZ, LEONID L · 2020 to 2024
$2.0M
NINDS NIH HHS R01 NS114491
6 · The paper itself

Abstract

Glutamate (Glu) is the primary excitatory transmitter in the mammalian brain. But, we know little about the evolutionary history of this adaptation, including the selection of l-glutamate as a signaling molecule in the first place. Here, we used comparative metabolomics and genomic data to reconstruct the genealogy of glutamatergic signaling. The origin of Glu-mediated communications might be traced to primordial nitrogen and carbon metabolic pathways. The versatile chemistry of L-Glu placed this molecule at the crossroad of cellular biochemistry as one of the most abundant metabolites. From there, innovations multiplied. Many stress factors or injuries could increase extracellular glutamate concentration, which led to the development of modular molecular systems for its rapid sensing in bacteria and archaea. More than 20 evolutionarily distinct families of ionotropic glutamate receptors (iGluRs) have been identified in eukaryotes. The domain compositions of iGluRs correlate with the origins of multicellularity in eukaryotes. Although L-Glu was recruited as a neuro-muscular transmitter in the early-branching metazoans, it was predominantly a non-neuronal messenger, with a possibility that glutamatergic synapses evolved more than once. Furthermore, the molecular secretory complexity of glutamatergic synapses in invertebrates (e.g., Aplysia) can exceed their vertebrate counterparts. Comparative genomics also revealed 15+ subfamilies of iGluRs across Metazoa. However, most of this ancestral diversity had been lost in the vertebrate lineage, preserving AMPA, Kainate, Delta, and NMDA receptors. The widespread expansion of glutamate synapses in the cortical areas might be associated with the enhanced metabolic demands of the complex brain and compartmentalization of Glu signaling within modular neuronal ensembles.

Indexed as

Biological EvolutionAnimalsGlutamic AcidReceptors, GlutamateSignal TransductionSynapsesGlutamic AcidReceptors, GlutamateAlgaeAplysiaAspartateCnidariaCtenophoresEukaryotesGABAGlutamate receptorsGlutamineNervous system evolutionNeurotransmittersPlacozoascRNA-seqStressSynapseTrichoplaxVesicular glutamate transporters

Identifiers

PMID34343611
PMCPMC9233959
OpenAlexW3190121236

What OpenQuestion holds

Textmetadata
LicenceTDM
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.