人間の前頭皮質の発達状況の単細胞RNA-seq調査
Suijuan Zhong1,2, Shu Zhang3, Xiaoying Fan3
1State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
Nature
|March 15, 2018
まとめ
この研究は2,300以上の単細胞を分析し 35の細胞サブタイプとその発達経路を特定することで 人間の前頭前皮質の発達をマッピングしています この研究は 早期の脳形成と 神経発達障害を理解するための 青写真を提供します
科学分野:
- 神経科学
- 発達生物学
- ゲノミクス
背景:
- 人間の前頭前皮質 (PFC) は 高いレベルの認知に不可欠ですが その発達は複雑です
- PFC発達の機能障害は神経発達障害と関連している.
- 胚性PFCの細胞タイプと発達特徴を特定することは困難です.
研究 の 目的:
- 妊娠初期から中期までのヒトPFCの細胞タイプと発達経路を包括的にマッピングする.
- ニューラルプロジェニータ細胞の新たなマーカー遺伝子と発達特性を特定する.
- 発達中のヒトPFCにおけるニューロン生成と回路形成の分子調節を理解する.
主な方法:
- ヒトPFC (妊娠8~26週) の2,300以上の単細胞のRNA配列解析
- 細胞のサブタイプと発達経路を特定するための単細胞トランスクリプトミックのデータ分析.
- 細胞集団と調節信号をスクリーニングし,特徴づけるための生物情報分析.
主要な成果:
- ヒトPFCの6つの主要クラスで35の異なる細胞サブタイプを特定した.
- ニューラルプロジェニータ細胞の詳細な特徴付け,中間のプロジェニータ細胞を含む,新しいマーカー遺伝子.
- 刺激性ニューロンの神経生成のタイムラインのマッピングと内部ニューロンの祖先の検出.
- ニューロン生成と回路形成を制御する 発達依存の固有信号の発見
結論:
- この研究は,妊娠初期と中期のヒトPFC発達の詳細な細胞および分子設計図を提供します.
- この発見は神経発達障害の 細胞の基礎について 洞察力を与えてくれます
- このリソースは,PFCの機能とその規制に関する将来の研究を促進します.
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