ヴァガル・インターオセプティブ・システムの多次元的なコーディングアーキテクチャ
Qiancheng Zhao1,2, Chuyue D Yu1,2,3, Rui Wang1,2
1Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA.
Nature
|March 17, 2022
まとめ
ヴァーガルセンサリーニューロン (VSN) は 体の内部情報を伝達するために 多次元のコーディング戦略を使用します このシステムは 精密な脳伝達のための 内臓器,組織層,刺激のタイプをマップします
科学分野:
- 神経科学
- ゲノミクス
- 生理学
背景:
- 身体の内部の変化を感知することが 生存に不可欠です
- ヴァーガルセンサリーニューロン (VSN) は臓器と脳を結びつけますが,そのコード化戦略は不明です.
研究 の 目的:
- 感覚神経細胞 (Vagal sensory neurons,VSNs) のインターオセプティブ信号に対するコーディング戦略を解明する.
- VSNが臓器,組織層,刺激タイプについての情報を伝達する方法を理解する.
主な方法:
- マウスの7つの臓器から複数のプロジェクションバーコードを用いた単細胞の大規模プロファイリング.
- カルシウムイメージングによる空間トランスクリプトミクスは,VSNの機能的組織をマッピングします.
主要な成果:
- VSNは3つの独立したコーディング次元:内臓器官,組織層,および刺激様式を使用します.
- 遺伝子モジュールは,ロストラル・カウダル軸に沿った臓器と,表面・ルメン軸に沿ったVSNの位置を区別する.
- VSNは異なる臓器や層にわたる 類似の刺激を感知する機能的な単位を形成します
結論:
- 哺乳類の ヴァーガル・インターオセプティブ・システムの 基礎となるのは多次元的な コーディング・アーキテクチャです
- この組み合わせコードは,並列のVSN経路と脳幹のプロジェクションを指定します.
- 内部信号通信の 洗練されたシステムを明らかにしています
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