Spatial cell-type enrichment predicts mouse brain connectivity

Summary: A fundamental neuroscience topic is the link between the brain’s molecular, cellular, and cytoarchitectonic properties and structural connectivity. Recent studies relate inter-regional connectivity to gene expression, but the relationship to regional cell-type distributions remains understu...

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Main Authors: Shenghuan Sun, Justin Torok, Christopher Mezias, Daren Ma, Ashish Raj
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Cell Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211124723012706
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author Shenghuan Sun
Justin Torok
Christopher Mezias
Daren Ma
Ashish Raj
author_facet Shenghuan Sun
Justin Torok
Christopher Mezias
Daren Ma
Ashish Raj
author_sort Shenghuan Sun
collection DOAJ
description Summary: A fundamental neuroscience topic is the link between the brain’s molecular, cellular, and cytoarchitectonic properties and structural connectivity. Recent studies relate inter-regional connectivity to gene expression, but the relationship to regional cell-type distributions remains understudied. Here, we utilize whole-brain mapping of neuronal and non-neuronal subtypes via the matrix inversion and subset selection algorithm to model inter-regional connectivity as a function of regional cell-type composition with machine learning. We deployed random forest algorithms for predicting connectivity from cell-type densities, demonstrating surprisingly strong prediction accuracy of cell types in general, and particular non-neuronal cells such as oligodendrocytes. We found evidence of a strong distance dependency in the cell connectivity relationship, with layer-specific excitatory neurons contributing the most for long-range connectivity, while vascular and astroglia were salient for short-range connections. Our results demonstrate a link between cell types and connectivity, providing a roadmap for examining this relationship in other species, including humans.
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spelling doaj.art-92a923f8230c47e69c84f4fad0dc60852023-10-20T06:39:29ZengElsevierCell Reports2211-12472023-10-014210113258Spatial cell-type enrichment predicts mouse brain connectivityShenghuan Sun0Justin Torok1Christopher Mezias2Daren Ma3Ashish Raj4Department of Radiology, University of California, San Francisco, San Francisco, CA, USADepartment of Radiology, University of California, San Francisco, San Francisco, CA, USACold Spring Harbor Laboratory, Cold Spring Harbor, NY, USADepartment of Radiology, University of California, San Francisco, San Francisco, CA, USADepartment of Radiology, University of California, San Francisco, San Francisco, CA, USA; Corresponding authorSummary: A fundamental neuroscience topic is the link between the brain’s molecular, cellular, and cytoarchitectonic properties and structural connectivity. Recent studies relate inter-regional connectivity to gene expression, but the relationship to regional cell-type distributions remains understudied. Here, we utilize whole-brain mapping of neuronal and non-neuronal subtypes via the matrix inversion and subset selection algorithm to model inter-regional connectivity as a function of regional cell-type composition with machine learning. We deployed random forest algorithms for predicting connectivity from cell-type densities, demonstrating surprisingly strong prediction accuracy of cell types in general, and particular non-neuronal cells such as oligodendrocytes. We found evidence of a strong distance dependency in the cell connectivity relationship, with layer-specific excitatory neurons contributing the most for long-range connectivity, while vascular and astroglia were salient for short-range connections. Our results demonstrate a link between cell types and connectivity, providing a roadmap for examining this relationship in other species, including humans.http://www.sciencedirect.com/science/article/pii/S2211124723012706CP: NeuroscienceCP: Cell biology
spellingShingle Shenghuan Sun
Justin Torok
Christopher Mezias
Daren Ma
Ashish Raj
Spatial cell-type enrichment predicts mouse brain connectivity
Cell Reports
CP: Neuroscience
CP: Cell biology
title Spatial cell-type enrichment predicts mouse brain connectivity
title_full Spatial cell-type enrichment predicts mouse brain connectivity
title_fullStr Spatial cell-type enrichment predicts mouse brain connectivity
title_full_unstemmed Spatial cell-type enrichment predicts mouse brain connectivity
title_short Spatial cell-type enrichment predicts mouse brain connectivity
title_sort spatial cell type enrichment predicts mouse brain connectivity
topic CP: Neuroscience
CP: Cell biology
url http://www.sciencedirect.com/science/article/pii/S2211124723012706
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AT christophermezias spatialcelltypeenrichmentpredictsmousebrainconnectivity
AT darenma spatialcelltypeenrichmentpredictsmousebrainconnectivity
AT ashishraj spatialcelltypeenrichmentpredictsmousebrainconnectivity