Cited by 286Neurogenesis and neuroplasticity mechanismsNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

Pyramidal cell regulation of interneuron survival sculpts cortical networks

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Wong, Fong Kuan, Bercsenyi, Kinga, Sreenivasan, Varun, Portalés, Adrián, Fernández-Otero, Marian, Marín, Oscar·2018·Nature

Abstract

Complex neuronal circuitries such as those found in the mammalian cerebral cortex have evolved as balanced networks of excitatory and inhibitory neurons. Although the establishment of appropriate numbers of these cells is essential for brain function and behaviour, our understanding of this fundamental process is limited. Here we show that the survival of interneurons in mice depends on the activity of pyramidal cells in a critical window of postnatal development, during which excitatory synaptic input to individual interneurons predicts their survival or death. Pyramidal cells regulate interneuron survival through the negative modulation of PTEN signalling, which effectively drives interneuron cell death during this period. Our findings indicate that activity-dependent mechanisms dynamically adjust the number of inhibitory cells in nascent local cortical circuits, ultimately establishing the appropriate proportions of excitatory and inhibitory neurons in the cerebral cortex.

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Crossref · 10.1038/s41586-018-0139-6

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  • Preventing programmed cell death in pyramidal cells by ablating Bax and Bak is sufficient to abolish programmed cell death of cortical interneurons.

    “Moreover, preventing programmed cell death in pyramidal cells by genetically ablating the proapoptotic Bcl-2 family members Bax and Bak (Lindsten et al., 2000) from these cells is sufficient to abolish the programmed cell death of cortical interneurons (Wong et al., 2018).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wong et al., 2018

  • Increasing or decreasing pyramidal cell excitability with DREADDs during the interneuron programmed cell death period respectively enhances or diminishes interneuron survival.

    “Consistent with this idea, increasing or decreasing the excitability of pyramidal cells using DREADDs during the period of interneuron programmed cell death respectively enhances or diminishes the survival of cortical interneurons (Wong et al., 2018).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wong et al., 2018

  • Long-term Ca2+ imaging in vivo indicates that activity levels at the onset of the cell death period predict interneuron fate.

    “First, long-term Ca2+ imaging experiments in vivo indicate that activity levels at the onset of the cell death period predict the fate of interneurons (Wong et al., 2018).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wong et al., 2018

  • Programmed cell death appears to affect all classes of interneurons.

    “This process seems to impact all classes of interneurons (Denaxa et al., 2018; Priya et al., 2018; Wong et al., 2018) (Figure 6A).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wong et al., 2018

  • Interneuron cell death occurs progressively in vivo, with early-born infragranular layer interneurons disappearing before late-born supragranular layer interneurons.

    “This is consistent with the observation that interneuron cell death occurs progressively in vivo, with early-born infragranular layer interneurons disappearing before late-born supragranular layer interneurons (Wong et al., 2018).”

    From Development and Functional Diversification of Cortical Interneurons (2018) · cites this paper as Wong et al., 2018

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Authors
Wong, F. K., Bercsenyi, K., Sreenivasan, V., Portalés, A., Fernández-Otero, M., & Marín, O.
Affiliations
King's College London (GB)
Venue
Nature
Published
2018-05
Volume
557
Issue
7707
Pages
668-673
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2803681151
Cited by
286
References
60
Citations by year
2026: 25 · 2025: 33 · 2024: 37 · 2023: 37 · 2022: 42 · 2021: 41 · 2020: 26 · 2019: 35 · 2018: 9 · 2014: 1
FWCI
10.20
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion, other-oa)
Funders
  • Wellcome Trust (103714/Z/14/Z, 103714MA)
  • European Commission (H2020)
  • Horizon 2020 Framework Programme
  • Medical Research Council (MR/N026063/1)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
pyramidal neurons, excitation-inhibition balance, cortical development, postnatal development, neuronal cell death, activity-dependent regulation, inhibitory interneurons, excitatory synaptic input
MeSH terms
Animals, Cell Count, Cell Survival, Cerebral Cortex, Female, Interneurons, Male, Neural Pathways, Cell Death, Pyramidal Cells, PTEN Phosphohydrolase, Mice

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