胎児の脳は自己組織化して 長期にわたって膨張するオーガノイドになる
Delilah Hendriks1, Anna Pagliaro2, Francesco Andreatta2
1Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW), Utrecht, the Netherlands; Oncode Institute, Utrecht, the Netherlands.
Cell
|January 9, 2024
まとめ
健康な胎児の脳組織は自己組織化して 拡張性オーガノイド (FeBOs) になり,体内の発達を模倣する. この新しいプラットフォームは 脳の発達と 脳がんを含む疾患のモデル化を 長期的に研究することを可能にします
科学分野:
- 神経科学
- 発達生物学
- 幹細胞生物学
背景:
- 人間の脳の発達には 複雑な神経の祖先の拡張と 組織構造の確立が含まれます
- 現在の脳オルガノイドは 多能幹細胞からのみ生成されています
- 代替オーガノイドモデルが必要であり,これは in vivo 開発をより良く再現するものである.
研究 の 目的:
- 健康な胎児の脳組織が 拡張性オーガノイド (FeBOs) に 自己組織化することを研究する.
- FeBOsの細胞異質性と組織を特徴付ける.
- 中枢神経系 (CNS) の発達と疾患の研究のための補完的なプラットフォームとしてFeBOsを確立する.
主な方法:
- 健康な胎児の脳組織をインビトロ培養して,自己組織化 (FeBOs) を促進する.
- FeBOの膨張,組織の整合性,細胞外マトリックス (ECM) のニッチ維持を評価する.
- 地域アイデンティティの保存を評価するために,異なるCNS領域からFeBOラインを導出します.
- CRISPR-Cas9遺伝子エディティングを使用して,病気のモデリングのために変異したFeBOラインを生成します.
主要な成果:
- 健康な胎児の脳組織は自発的にオーガノイド (FeBOs) に自己組織化します.
- FeBOのフェノコピーは,細胞の異質性と複雑な組織であり,長期的に拡張することができます.
- FeBOの成長は組織の整合性とECMのニッチに依存し,持続的な拡張を可能にします.
- 異なるCNS地域から派生したFeBOは地域的アイデンティティを維持する.
- シンゲニック変異のFeBO線は脳がん研究のために生成された.
結論:
- FeBOは胎児の脳組織から直接派生した 新しく拡張可能なオルガノイドモデルです
- このプラットフォームは 人間の脳の発達と 組織の重要な側面を 再現しています
- FeBOは,CNSの発達,位置的アイデンティティ,および脳がんを研究するための既存のオルガノイドモデルに補完的なアプローチを提供します.
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