Evidence map›Paper›PMID 31818976›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2020

Suppression of Presynaptic Glutamate Release by Postsynaptic Metabotropic NMDA Receptor Signalling to Pannexin-1.

Jennifer Bialecki, Allison Werner, Nicholas L Weilinger, Catharine M Tucker, Haley A Vecchiarelli, Jon Egaña, Juan Mendizabal-Zubiaga, Pedro Grandes, Matthew N Hill, Roger J Thompson

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

36 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Pannexins in the vasculature.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  6. Pannexin channels in the kidney.American journal of physiology. Renal physiology · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Astrocyte and neuronal Panx1 support long-term reference memory in mice.bioRxiv : the preprint server for biology · 2023
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 2 countries.

Jennifer BialeckiHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.
Allison WernerHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.
Nicholas L WeilingerHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.
Catharine M TuckerHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.
Haley A VecchiarelliHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.ORCID 0000-0001-6331-6107
Jon EgañaDepartment of Neurosciences, University of the Basque Country UPV/EHU, 48940 Leioa, Spain.
Juan Mendizabal-ZubiagaDepartment of Neurosciences, University of the Basque Country UPV/EHU, 48940 Leioa, Spain.
Pedro GrandesDepartment of Neurosciences, University of the Basque Country UPV/EHU, 48940 Leioa, Spain.
Matthew N HillHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and.
Roger J ThompsonHotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, Alberta T2N 4N1, Canada, and rj.thompson@ucalgary.ca.
University of Calgary · CAUniversity of the Basque Country · ES

Funding

CIHR FDN 143329CIHR MOP 136812
6 · The paper itself

Abstract

The impact of pannexin-1 (Panx1) channels on synaptic transmission is poorly understood. Here, we show that selective block of Panx1 in single postsynaptic hippocampal CA1 neurons from male rat or mouse brain slices causes intermittent, seconds long increases in the frequency of sEPSC following Schaffer collateral stimulation. The increase in sEPSC frequency occurred without an effect on evoked neurotransmission. Consistent with a presynaptic origin of the augmented glutamate release, the increased sEPSC frequency was prevented by bath-applied EGTA-AM or TTX. Manipulation of a previously described metabotropic NMDAR pathway (i.e., by preventing ligand binding to NMDARs with competitive antagonists or blocking downstream Src kinase) also increased sEPSC frequency similar to that seen when Panx1 was blocked. This facilitated glutamate release was absent in transient receptor potential vanilloid 1 (TRPV1) KO mice and prevented by the TRPV1 antagonist, capsazepine, suggesting it required presynaptic TRPV1. We show presynaptic expression of TRPV1 by immunoelectron microscopy and link TRPV1 to Panx1 because Panx1 block increases tissue levels of the endovanilloid, anandamide. Together, these findings demonstrate an unexpected role for metabotropic NMDARs and postsynaptic Panx1 in suppression of facilitated glutamate neurotransmission.

Indexed as

AnimalsCalcium Chelating AgentsConnexinsEgtazic AcidExcitatory Postsynaptic PotentialsGlutamic AcidHippocampusMiceMice, KnockoutNerve Tissue ProteinsNeuronsPresynaptic TerminalsRatsReceptors, N-Methyl-D-AspartateSignal TransductionSodium Channel BlockersCalcium Chelating AgentsConnexinsEGTA acetoxymethyl esterEgtazic AcidGlutamic AcidNerve Tissue ProteinsPanx1 protein, mouseReceptors, N-Methyl-D-AspartateSodium Channel Blockerssrc-Family KinasesTetrodotoxinTRPV1 protein, mouseTRPV Cation Channelsanandamideglutamate transmissionhippocampusmetabotropic NMDARpannexinTRPV1

Identifiers

PMID31818976
PMCPMC6975291
OpenAlexW2995738737

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.