ニューロン・アストロサイトプログラムによる 衰老と統合失調症の減少
Emi Ling1,2, James Nemesh3,4, Melissa Goldman3,4
1Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA. eling@broadinstitute.org.
Nature
|March 6, 2024
まとめ
新しく発見されたシナプスニューロンとアストロサイトプログラム (SNAP) は 脳の細胞のコミュニケーションを 個々の違いと結びつけています このプログラム
科学分野:
- 神経科学
- 細胞生物学
- 遺伝学
背景:
- 人間の脳の多様性は 細胞レベルで理解されていません
- 皮質のアストロサイトとニューロンは 脳の機能において重要な役割を果たします
- 統合失調症と老化は 認知の柔軟性や可塑性に影響します
研究 の 目的:
- 脳皮質のニューロンと 星球細胞の関係を調べる
- 細胞のメカニズムを特定し,個体間の違いと神経発達/神経変性状態を明らかにする.
- 健康と病気におけるシナプスニューロンとアストロサイトプログラム (SNAP) の役割を探求する.
主な方法:
- 191人のヒトドナー (22歳から97歳) の前頭前皮質の単核RNAシーケンシング.
- 分析対象は健康な個人と統合失調症患者でした.
- 遺伝子発現の関係を特定するための潜伏因子分析
主要な成果:
- ニューロンシナプス遺伝子発現とアストロサイトシナプス/コレステロール合成遺伝子発現の間に,シナプスニューロンおよびアストロサイトプログラム (SNAP) と呼ばれる正の相関が発見された.
- 統合失調症患者および高齢者のアストロサイト,グルタマタージックニューロン,およびGABAergicニューロンにおけるSNAP発現の減少が観察されました.
- SNAP内の遺伝子は統合失調症に関連する 遺伝的危険因子に富んでいます
結論:
- SNAPは正常な人間の個体間脳の変化の基礎となる 重要な細胞機構を表しています
- 統合失調症や老化などの病理生理学における SNAPの調節不良は収束点である可能性があります
- SNAPは認知機能の低下と 脳の可塑性を理解するための 細胞的な枠組みを提供します
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