Activity-dependent tuning of intrinsic excitability in mouse and human neurogliaform cells

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Abstract

The ability to modulate the efficacy of synaptic communication between neurons constitutes an essential property critical for normal brain function. Animal models have proved invaluable in revealing a wealth of diverse cellular mechanisms underlying varied plasticity modes. However, to what extent these processes are mirrored in humans is largely uncharted thus questioning their relevance in human circuit function. In this study, we focus on neurogliaform cells, that possess specialized physiological features enabling them to impart a widespread inhibitory influence on neural activity. We demonstrate that this prominent neuronal subtype, embedded in both mouse and human neural circuits, undergo remarkably similar activity-dependent modulation manifesting as epochs of enhanced intrinsic excitability. In principle, these evolutionary conserved plasticity routes likely tune the extent of neurogliaform cell mediated inhibition thus constituting canonical circuit mechanisms underlying human cognitive processing and behavior.

Data availability

All data generated or analysed during this study are included in the manuscript and supporting source data files.

The following previously published data sets were used

1. Allen Brain Institute - Hodge et al. doi:10.1038/s41586-019-1506-7
(2019) Cell Diversity in the Mouse Cortex and Hippocampus & Cell Diversity in the Human cortex
https://transcriptomic-viewer-downloads.s3-us-west-2.amazonaws.com/mouse/transcriptome.zip; https://transcriptomic-viewer-downloads.s3-us-west-2.amazonaws.com/human/transcriptome.zip.

https://portal.brain-map.org/atlases-and-data/rnaseq

Article and author information

Author details

Ramesh Chittajallu

Section on Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

For correspondence
ramesh.chittajallu@nih.gov

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0002-9794-0052
Kurt Auville

Section on Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.
Vivek Mahadevan

Laboratory of Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0002-0805-827X
Mandy Lai

Section on Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.
Steven Hunt

Laboratory of Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.
Daniela Calvigioni

Laboratory of Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.
Kenneth A Pelkey

Section on Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0002-9731-1336
Kareem A Zaghloul

Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, United States

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0001-8575-3578
Chris J McBain

Section on Cellular and Synaptic Physiology, Eunice Kennedy Shriver National Insititute of Child Helath and Human Development, National Insitutes of Health, Bethesda, United States

For correspondence
mcbainc@mail.nih.gov

Competing interests
The authors declare that no competing interests exist.

"This ORCID iD identifies the author of this article:" 0000-0002-5909-0157

Funding

NINDS Intramural Research Program (Z01NS003144)

Kareem A Zaghloul

NICHD Intramural Research Program (ZIAHD001205)

Chris J McBain

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 mice were handled in accordance with animal protocols approved by the National Institutes of Health (ASP# 17-045).

Human subjects: The NINDS Institutional Review Board (IRB) approved the research protocol (ClinicalTrials.gov Identifier NCT01273129), and informed consent for the experimental use of resected tissue was obtained from each participant and their guardians.

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.