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Updated: Feb 8, 2026

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新規培地カクテルLACIDを用いた高品質ブタiPSCの作製
Bingbo Shi1, Jiajun Li2, Xiaomin Wang3
1Laboratory of Cell Fate Control, School of Life Sciences, Westlake University, Hangzhou, China; Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong, China.
Stem cell reports
|February 6, 2026
まとめ
研究者らは、疾患モデリングおよび再生医療のための改良型ブタ人工多能性幹細胞(piPSC)を作成する新しい方法を開発した。これらのpiPSCはフィーダーレス培養に適しており、核移植による胚盤胞の作製に使用できる。
科学分野:
- 幹細胞生物学
- 発生生物学
- 遺伝学
背景:
- ブタは疾患研究、異種移植、器官形成の重要なモデルである。
- フィーダーレス培養や発生能などの望ましい特性を持つブタ人工多能性幹細胞(piPSC)の作製は困難であった。
研究 の 目的:
- 高度な研究アプリケーションの主要な基準を満たすpiPSC作製のための改良戦略を開発する。
- フィーダーレス培養、堅牢な発生能、および核移植を介した胚盤胞発生に適したpiPSCを確立する。
主な方法:
- ブタの初期化中に上皮様コロニー形成を促進するために化学定義培地3を利用した。
- 後続の初期化ステップには新規培地カクテルLACIDを使用した。
- piPSCをフィーダーレス条件下で培養し、それらの多能性および発生能力を評価した。
主要な成果:
- 平坦な形態を示し、フィーダーレス培養が可能なpiPSCの作製に成功した。
- テラトーマおよび胚盤胞様構造体の堅牢な形成、およびキメラ胚盤胞の作製を実証した。
- 作製したpiPSCを用いた核移植後のCRISPR-Cas9編集および胚盤胞発生の成功を示した。
結論:
- 新たに確立されたLACID piPSCは、再生医療アプリケーションに理想的な主要な特徴を備えている。
- 開発された方法は、機能的なpiPSCの作製において重要な進歩を提供する。
- 将来の改善は、ナイーブまたは全能性ブタ幹細胞の作製につながる可能性がある。
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