発達中の脳の高解像度アトラスを構築(High-resolution atlas of the developing brain)

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2026-03-26 ジョンズ・ホプキンス大学 (JHU)

ジョンズ・ホプキンズ大学の研究チームは、発達中のヒト脳を詳細に可視化した高解像度アトラスを構築した。胎児期から初期発達段階にかけての脳組織を解析し、細胞タイプの分布や遺伝子発現の時空間的変化を網羅的に記録。これにより、脳の構造形成や神経回路の発達過程がこれまでにない精度で明らかになった。さらに、自閉スペクトラム症や神経発達障害の起源理解にもつながる重要な基盤データを提供する。発達過程における異常の特定や早期診断、治療法開発に寄与する成果とされる。

発達中の脳の高解像度アトラスを構築(High-resolution atlas of the developing brain)
The image shows how different elements of the genome are used during the birth of neurons in the mouse (left), monkey (center), and human (right) brain. Each tiny dot is a single cell in the developing neocortex. The sequential waves of color depict conserved gene expression programs beginning in neural stem cells, progressing through intermediate states, and finishing in newly born neurons.Image credit: Carlo Colantuoni

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NeMO Analytics:新皮質発達の探索のためのトランスクリプトームデータ集 NeMO Analytics: a compendium of transcriptomic data for the exploration of neocortical development

Shreyash Sonthalia,Brian Herb,Ricky S. Adkins,Joshua Orvis,Guangyan Li,Xiangyu Liao,Qingjie Yu,Xoel Mato Blanco,Alex Casella,Jinrui Liu,Genevieve Stein-O’Brien,Brian Caffo,Ronna Hertzano,Anup Mahurkar,Jin-Chong Xu,Jesse Gillis,Jonathan Werner,Shaojie Ma,Suel-Kee Kim,Nicola Micali,Nenad Sestan,Pasko Rakic,Gabriel Santpere,Seth A. Ament & Carlo Colantuoni
Nature Neuroscience  Published:25 March 2026
DOI:https://doi.org/10.1038/s41593-026-02204-4

Abstract

Here, to enable researchers to more fully harness the collective discovery potential of multiomic data in the public domain, we have assembled gene-level transcriptomic data from ~200 studies of neocortical development and in vitro models. Applying joint matrix decomposition to mouse, macaque and human data, we define transcriptome dynamics that are conserved across neocortical neurogenesis and identify a program that emerges in ventricular progenitors, is later expressed in neurogenic outer, or basal, radial glia of primates, but is limited to gliogenic precursors in the rodent. Decomposition of adult human neocortical data identified layer-specific signatures in excitatory neurons, enabling the charting of their developmental emergence and protracted maturation, which is in stark contrast to the early peaking expression of layer-defining transcription factors. Interrogation of data from cerebral organoids demonstrated that, although broad elements of in vivo development are recapitulated in vitro, many layer-specific transcriptomic programs in neuronal maturation are absent. We invite cell biologists without coding expertise to use NeMO Analytics in their research and to fuel it with their own emerging data at nemoanalytics.org/landing/neocortex.

医療・健康
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