統合失調症のリスクに関連する染色体コネクトームのニューロン特異的シグネチャー
Prashanth Rajarajan1,2,3,4, Tyler Borrman5, Will Liao6
1Icahn School of Medicine M.D./Ph.D. Program, Icahn School of Medicine at Mount Sinai, New York, NY 10027, USA.
Science (New York, N.Y.)
|December 15, 2018
まとめ
この研究は,脳が
科学分野:
- 神経科学
- ゲノミクス
- 発達生物学
背景:
- 統合失調症のような神経精神疾患には 複雑な遺伝的要素があります
- 3次元のゲノム組織を理解することは 脳の発達における遺伝子調節を解読するのに 極めて重要です
研究 の 目的:
- 神経の分化過程で 脳の3Dゲノムの ダイナミックな変化を調査する
- これらのゲノム変化を 統合失調症の 遺伝的危険因子と結びつけるためです
主な方法:
- 神経元細胞の分化における染色体構造のモニタリング
- 細胞型特異の染色体コンネクトームを分析する
- 統合失調症のリスク変種と関連遺伝子の 増殖を特定する
主要な成果:
- 神経細胞と膠質細胞の分化には 3Dゲノムの大幅な改造が伴う.
- 統合失調症のリスクは 特定の染色体相互作用に 根付いています
- これらの相互作用はニューロン接続とクロマチンの改造に関与する遺伝子を含んでいます
- 統合失調症のリスクのある領域の 発達の変化はニューロンにおいてより顕著です
結論:
- 脳の3Dゲノムは 発達過程で大きく再編成されます
- 空間的ゲノム組織は統合失調症の細胞タイプ特有の脆弱性に寄与します
- リスク変異のコネクトームは,神経細胞の発達と疾患における調整された遺伝子調節を強調する.
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