細胞タイプがヒトの脳内ネットワークをどのように形成しているかが研究で明らかに(Study Reveals How Cell Types Shape Human Brain Networks)

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2024-11-21 ラトガース大学

ラトガース大学の研究者らは、ヒト脳の異なる細胞タイプが脳ネットワークの形成にどのように寄与するかを明らかにしました。この研究は、特定の細胞タイプが神経回路の構造と機能に与える影響を詳細に解析し、脳疾患の理解と治療法の開発に新たな視点を提供します。

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ヒトの大脳皮質機能的コネクトームの基盤は細胞タイプにある The cell-type underpinnings of the human functional cortical connectome

Xi-Han Zhang  ( (张喜寒)),Kevin M. Anderson,Hao-Ming Dong  ( (董昊铭)),Sidhant Chopra,Elvisha Dhamala,Prashant S. Emani,Mark B. Gerstein,Daniel S. Margulies & Avram J. Holmes
Nature Neuroscience  Published:21 November 2024
DOI:https://doi.org/10.1038/s41593-024-01812-2

細胞タイプがヒトの脳内ネットワークをどのように形成しているかが研究で明らかに(Study Reveals How Cell Types Shape Human Brain Networks)

Abstract

The functional properties of the human brain arise, in part, from the vast assortment of cell types that pattern the cerebral cortex. The cortical sheet can be broadly divided into distinct networks, which are embedded into processing streams, or gradients, that extend from unimodal systems through higher-order association territories. Here using microarray data from the Allen Human Brain Atlas and single-nucleus RNA-sequencing data from multiple cortical territories, we demonstrate that cell-type distributions are spatially coupled to the functional organization of cortex, as estimated through functional magnetic resonance imaging. Differentially enriched cells follow the spatial topography of both functional gradients and associated large-scale networks. Distinct cellular fingerprints were evident across networks, and a classifier trained on postmortem cell-type distributions was able to predict the functional network allegiance of cortical tissue samples. These data indicate that the in vivo organization of the cortical sheet is reflected in the spatial variability of its cellular composition.

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