成人の人間の脳トランスクリプトームの解剖学的に包括的なアトラス
Michael J Hawrylycz1, Ed S Lein1, Angela L Guillozet-Bongaarts1
1Allen Institute for Brain Science, Seattle, Washington 98103, USA.
Nature
|September 22, 2012
まとめ
この研究は,成人の人間の脳全体の遺伝子活動をマッピングし,異なる領域と細胞タイプにおける異なる分子シグネチャを明らかにしています. この転写アトラスは,脳機能と神経遺伝学的障害を理解するための基線を提供します.
科学分野:
- 神経科学は神経科学である.
- ゲノミクスゲノミクスとは
- 分子生物学は分子生物学である.
背景:
- ゲノム全体のトランスクリプト分布マップは,脳の機能を理解するために不可欠です.
- 遺伝子データと脳の構造を相関させるには,正確な解剖学的および分子情報が必要です.
研究 の 目的:
- 大人の人間の脳の高解像度の転写アトラスを作成する.
- 神経解剖学的に正確なサブディビジョンの遺伝子発現パターンを分析する.
- 神経遺伝学的研究のためのベースラインを確立するために.
主な方法:
- マイクロアレイプロファイリングを用いた転写アトラスの生成と分析.
- 約900の神経解剖学的に正確な脳のサブディビジョンの組織学的分析.
- 2人の成人ヒトのプロフィール作成.
主要な成果:
- 転写調節は,解剖学的位置と細胞タイプによって有意な変化を示しています.
- 遺伝子発現パターンは,主要な細胞クラス (ニューロン,グリア) の分布と強く相関しています.
- 新皮質の遺伝子発現は空間的地形を反映し,より近い領域は同様のトランスクリプトームを示しています.
結論:
- 人間の脳は,解剖学的な場所や個人を越えて,堅牢で保存された分子シグネチャーを持っています.
- このトランスクリプションアトラスは,神経遺伝学の研究に貴重なリソースとして役立つ.
- この発見は,人間の脳の分子組織についての洞察を提供します.
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