Major-depressive-disorder-associated dysregulation of ZBTB7A in orbitofrontal cortex promotes astrocyte-mediated stress susceptibility

Heightened activity in the orbitofrontal cortex (OFC), a brain region that contributes to motivation, emotion, and reward-related decision-making, is a key clinical feature of major depressive disorder (MDD). However, the cellular and molecular substrates underlying this dysfunction remain unclear. Here, we performed cell-type-specific profiling of human OFC and unexpectedly mapped MDD-linked epigenomic features (including genetic risk variants) to non-neuronal cells, revealing significant glial dysregulation in this region. Characterization of MDD-specific chromatin loci further identified ZBTB7A-a transcriptional regulator of astrocyte reactivity-as an important mediator of MDD-related alterations. In rodent models, we found that Zbtb7a induction in astrocytes is both necessary and sufficient to drive stress-mediated behavioral deficits, cell-type-specific transcriptional/epigenomic signatures, and aberrant OFC astrocyte-neuronal communication in male mice-an established MDD risk factor. These findings thus highlight essential roles for astrocytes in OFC-mediated stress susceptibility and identify ZBTB7A as a critical and therapeutically relevant regulator of MDD-related OFC dysfunction.

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Publication Details

Journal
Neuron
Published
2025-06-13
DOI
https://doi.org/10.1016/j.neuron.2025.05.023
Citations
3
Primary Topic
Genetic Neurodegenerative Diseases
Type
article
Field-Weighted Citation Impact
2.73

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article

Major-depressive-disorder-associated dysregulation of ZBTB7A in orbitofrontal cortex promotes astrocyte-mediated stress susceptibility

Romain Durand-de Cuttoli, Ian Maze, Sasha L. Fulton, Wolfram C. Poller et al.
3 citations
Neuron
Genetic Neurodegenerative Diseases
2.73
article

Major-depressive-disorder-associated dysregulation of ZBTB7A in orbitofrontal cortex promotes astrocyte-mediated stress susceptibility

Romain Durand-de Cuttoli, Ian Maze, Sasha L. Fulton, Wolfram C. Poller, Amni Al-Kachak, Kelly Gleason, Amanda K. Fakira, John F. Fullard, Mads E. Hauberg, Filip K. Świrski, Scott J. Russo, Ishmail Abdus-Saboor, Andrew F. Stewart, Vishwendra Patel, Flurin Cathomas, Jaroslav M. Bendl, Ryan M. Bastle, Robert D. Blitzer, Panos Roussos, Ashley E. Lepack, Paul A. Slesinger, Sumnima Singh, Ana Milošević, Isabel Gameiro‐Ros, Li Shen, Min Chen, Aarthi Ramakrishnan, G. Salvo, C.A. Tamminga
article en
3 citations

Abstract

Heightened activity in the orbitofrontal cortex (OFC), a brain region that contributes to motivation, emotion, and reward-related decision-making, is a key clinical feature of major depressive disorder (MDD). However, the cellular and molecular substrates underlying this dysfunction remain unclear. Here, we performed cell-type-specific profiling of human OFC and unexpectedly mapped MDD-linked epigenomic features (including genetic risk variants) to non-neuronal cells, revealing significant glial dysregulation in this region. Characterization of MDD-specific chromatin loci further identified ZBTB7A-a transcriptional regulator of astrocyte reactivity-as an important mediator of MDD-related alterations. In rodent models, we found that Zbtb7a induction in astrocytes is both necessary and sufficient to drive stress-mediated behavioral deficits, cell-type-specific transcriptional/epigenomic signatures, and aberrant OFC astrocyte-neuronal communication in male mice-an established MDD risk factor. These findings thus highlight essential roles for astrocytes in OFC-mediated stress susceptibility and identify ZBTB7A as a critical and therapeutically relevant regulator of MDD-related OFC dysfunction.

NeuronVol. 113(16)
Allen Institute for Brain Science (US), Southwestern Medical Center (US), MIND Research Institute (US), Southwestern Medical Center (US), Rockefeller University (US), The University of Texas Southwestern Medical Center (US), Icahn School of Medicine at Mount Sinai (US)
Howard Hughes Medical Institute, Burroughs Wellcome Fund, National Institute of Mental Health, National Institute of Neurological Disorders and Stroke
Openalex Percentile: Top 10%
Genetic Neurodegenerative Diseases
2.73
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