Paradoxical network excitation by glutamate release from VGluT3+ GABAergic interneurons

  1. Kenneth A Pelkey  Is a corresponding author
  2. Daniela Calvigioni
  3. Calvin Fang
  4. Geoffrey Vargish
  5. Tyler Ekins
  6. Kurt Auville
  7. Jason C Wester
  8. Mandy Lai
  9. Connie Mackenzie-Gray Scott
  10. Xiaoqing Yuan
  11. Steven Hunt
  12. Daniel Abebe
  13. Qing Xu
  14. Jordane Dimidschstein
  15. Gordon Fishell
  16. Ramesh Chittajallu
  17. Chris J McBain  Is a corresponding author
  1. NICHD/NIH, United States
  2. New York University Abu Dhabi, United Arab Emirates
  3. Broad Institute of MIT and Harvard, United States
  4. Harvard Medical School, United States

Abstract

In violation of Dale's principle several neuronal subtypes utilize more than one classical neurotransmitter. Molecular identification of vesicular glutamate transporter 3 and cholecystokinin expressing cortical interneurons (CCK+VGluT3+INTs) has prompted speculation of GABA/glutamate corelease from these cells for almost two decades despite a lack of direct evidence. We unequivocally demonstrate CCK+VGluT3+INT mediated GABA/glutamate cotransmission onto principal cells in adult mice using paired recording and optogenetic approaches. Although under normal conditions, GABAergic inhibition dominates CCK+VGluT3+INT signaling, glutamatergic signaling becomes predominant when glutamate decarboxylase (GAD) function is compromised. CCK+VGluT3+INTs exhibit surprising anatomical diversity comprising subsets of all known dendrite targeting CCK+ interneurons in addition to the expected basket cells, and their extensive circuit innervation profoundly dampens circuit excitability under normal conditions. However, in contexts where the glutamatergic phenotype of CCK+VGluT3+INTs is amplified, they promote paradoxical network hyperexcitability which may be relevant to disorders involving GAD dysfunction such as schizophrenia or vitamin B6 deficiency.

Data availability

All data analyzed in this study are included in the manuscript/supporting files.

Article and author information

Author details

  1. Kenneth A Pelkey

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    For correspondence
    pelkeyk2@mail.nih.gov
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-9731-1336
  2. Daniela Calvigioni

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  3. Calvin Fang

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  4. Geoffrey Vargish

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  5. Tyler Ekins

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  6. Kurt Auville

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  7. Jason C Wester

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  8. Mandy Lai

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  9. Connie Mackenzie-Gray Scott

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  10. Xiaoqing Yuan

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  11. Steven Hunt

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  12. Daniel Abebe

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  13. Qing Xu

    Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
    Competing interests
    The authors declare that no competing interests exist.
  14. Jordane Dimidschstein

    Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, United States
    Competing interests
    The authors declare that no competing interests exist.
  15. Gordon Fishell

    Department of Neurobiology, Harvard Medical School, Boston, United States
    Competing interests
    The authors declare that no competing interests exist.
  16. Ramesh Chittajallu

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    Competing interests
    The authors declare that no competing interests exist.
  17. Chris J McBain

    Section on Cellular and Synaptic Physiology, NICHD/NIH, Bethesda, United States
    For correspondence
    mcbainc@mail.nih.gov
    Competing interests
    The authors declare that no competing interests exist.
    ORCID icon "This ORCID iD identifies the author of this article:" 0000-0002-5909-0157

Funding

Eunice Kennedy Shriver National Institute of Child Health and Human Development (Intramural research program)

  • Chris J McBain

National Institute of Neurological Disorders and Stroke (NS081297; NS074972)

  • Gordon Fishell

National Institute of Mental Health (MH071679)

  • Gordon Fishell

The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.

Ethics

Animal experimentation: All experiments were conducted in accordance with animal protocols approved by the National Institutes of Health (ASP# 17-045).

Copyright

This is an open-access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.

Metrics

  • 4,015
    views
  • 635
    downloads
  • 39
    citations

Views, downloads and citations are aggregated across all versions of this paper published by eLife.

Download links

A two-part list of links to download the article, or parts of the article, in various formats.

Downloads (link to download the article as PDF)

Open citations (links to open the citations from this article in various online reference manager services)

Cite this article (links to download the citations from this article in formats compatible with various reference manager tools)

  1. Kenneth A Pelkey
  2. Daniela Calvigioni
  3. Calvin Fang
  4. Geoffrey Vargish
  5. Tyler Ekins
  6. Kurt Auville
  7. Jason C Wester
  8. Mandy Lai
  9. Connie Mackenzie-Gray Scott
  10. Xiaoqing Yuan
  11. Steven Hunt
  12. Daniel Abebe
  13. Qing Xu
  14. Jordane Dimidschstein
  15. Gordon Fishell
  16. Ramesh Chittajallu
  17. Chris J McBain
(2020)
Paradoxical network excitation by glutamate release from VGluT3+ GABAergic interneurons
eLife 9:e51996.
https://doi.org/10.7554/eLife.51996

Share this article

https://doi.org/10.7554/eLife.51996

Further reading

    1. Neuroscience
    Yafen Li, Yixuan Lin ... Antao Chen
    Research Article

    Concurrent verbal working memory task can eliminate the color-word Stroop effect. Previous research, based on specific and limited resources, suggested that the disappearance of the conflict effect was due to the memory information preempting the resources for distractors. However, it remains unclear which particular stage of Stroop conflict processing is influenced by working memory loads. In this study, electroencephalography (EEG) recordings with event-related potential (ERP) analyses, time-frequency analyses, multivariate pattern analyses (MVPAs), and representational similarity analyses (RSAs) were applied to provide an in-depth investigation of the aforementioned issue. Subjects were required to complete the single task (the classical manual color-word Stroop task) and the dual task (the Sternberg working memory task combined with the Stroop task), respectively. Behaviorally, the results indicated that the Stroop effect was eliminated in the dual-task condition. The EEG results showed that the concurrent working memory task did not modulate the P1, N450, and alpha bands. However, it modulated the sustained potential (SP), late theta (740–820 ms), and beta (920–1040 ms) power, showing no difference between congruent and incongruent trials in the dual-task condition but significant difference in the single-task condition. Importantly, the RSA results revealed that the neural activation pattern of the late theta was similar to the response interaction pattern. Together, these findings implied that the concurrent working memory task eliminated the Stroop effect through disrupting stimulus-response mapping.

    1. Evolutionary Biology
    2. Neuroscience
    Anastasia A Makarova, Nicholas J Chua ... Alexey A Polilov
    Research Article

    The structure of compound eyes in arthropods has been the subject of many studies, revealing important biological principles. Until recently, these studies were constrained by the two-dimensional nature of available ultrastructural data. By taking advantage of the novel three-dimensional ultrastructural dataset obtained using volume electron microscopy, we present the first cellular-level reconstruction of the whole compound eye of an insect, the miniaturized parasitoid wasp Megaphragma viggianii. The compound eye of the female M. viggianii consists of 29 ommatidia and contains 478 cells. Despite the almost anucleate brain, all cells of the compound eye contain nuclei. As in larger insects, the dorsal rim area of the eye in M. viggianii contains ommatidia that are believed to be specialized in polarized light detection as reflected in their corneal and retinal morphology. We report the presence of three ‘ectopic’ photoreceptors. Our results offer new insights into the miniaturization of compound eyes and scaling of sensory organs in general.