マウスの脳全体の分子的に定義され,空間的に解明された細胞アトラス
Meng Zhang1,2,3, Xingjie Pan1,2,3, Won Jung1,2,3
1Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.
Nature
|December 13, 2023
まとめ
研究者は高度なトランスクリプトミクスを用いて マウスの脳細胞のアトラスを作成し 5千以上の細胞群とその空間的組織を明らかにしました この地図は 細胞の相互作用や 分子基盤を詳細に説明することで 脳の機能や病気を理解するのに役立ちます
科学分野:
- 神経科学
- ゲノミクス
- システム生物学
背景:
- 哺乳類の脳には 機能に不可欠な複雑な細胞ネットワークがあります
- 脳の分子と細胞の基礎を理解するのは 細胞の多様性と組織によって妨げられます
- 空間的に解明された単細胞トランスクリプトミックは,細胞構造をマッピングするための新しい道を提供します.
研究 の 目的:
- 大人のマウスの脳全体を 詳細で高解像度の 細胞アトラスを生成します
- 分子的に定義された細胞の空間的組織をマップする.
- 細胞同士の相互作用と 脳内の分子基盤を推測する
主な方法:
- ~1000万個の細胞の遺伝子イメージングのための多重複合のエラーロブスト光 in situ ハイブリダイゼーション (MERFISH).
- MERFISHと単細胞RNAの配列を整体トランスクリプトームプロファイリングに統合する.
- 空間分析のための共通の座標枠にセルアトラスを登録する.
主要な成果:
- 細胞アトラスの作成 転写的に異なった細胞群の5000個と300の主要な細胞タイプ.
- マウスの脳全体に広がる 細胞型の高分子と空間的解像度マッピング
- 空間モジュール,グラデーションの識別,そして何百もの細胞型特有の相互作用の推論.
- リガンド受容体相互作用と機能的影響の予測
結論:
- この研究は脳の分子と細胞構造を理解するための 基礎的なリソースを提供します
- 細胞アトラスは脳領域の細胞組成と組織を 体系的に定量化することを可能にします
- この研究は,健康と病気における神経回路の機能的調査を容易にする.
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