哺乳類の多能幹細胞による種間化学作用
Jun Wu1, Aida Platero-Luengo1, Masahiro Sakurai1
1Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037, USA.
Cell
|January 28, 2017
まとめ
研究者は豚と牛の胚にヒトの多能幹細胞 (hPSC) を調べました 中間 hPSC は豚の胚発育に有意な貢献を示し,異種臓器生成の可能性を向上させました.
科学分野:
- 発達生物学
- 幹細胞生物学
- 異種移植の研究
背景:
- 異種性多能幹細胞 (PSC) デリバティブの臓器特異的な増殖を促進する.
- CRISPR-Cas9技術は,胚形成と疾患モデルを研究するための多用途のブラストシスト補完プラットフォームを可能にします.
- 動物におけるヒト臓器生成の可能性は,様々な哺乳類のヒトPSC (hPSC) の貢献を理解することを必要としています.
研究 の 目的:
- CRISPR-Cas9を用いた多用途のブラストシスト補充プラットフォームを遺伝子編集された器官生成障害のあるマウスに確立する.
- 爪類 (豚と牛) の様々なhPSCのキメリック能力の評価
- 将来の臓器生成のための非歯類のキメラ形成へのhPSCの潜在的貢献を決定する.
主な方法:
- ブラストシスト補完のためのCRISPR-Cas9媒介のジゴトゲノム編集プラットフォームの開発.
- 植入前および植入後のブタと牛の胚への移植と寄与のための異なるhPSCタイプの体系的な評価.
- 移植後のブタの胚に挿入されたhPSCから分化した子孫の生成の評価
主要な成果:
- ネズミのPSC誘導体は,遺伝子編集されたオルガノゲーゼス障害のマウスの複数の組織に濃縮された.
- ネイヴなhPSCは,ブタと牛の両方の植入前のブラストシストに堅固な移植を示した.
- 中間 hPSC はより高い程度のキメリズムを示し,インプラント後のブタ胚で微分化した子孫を生成しました.
結論:
- この研究は,種間研究のための多用途のブラストシスト補完プラットフォームを成功裏に確立しました.
- 中間 hPSC は,毛皮動物,特に豚のキメラ形成に寄与する見込みを示しています.
- これらの発見は,生理学的に人間に近い動物における人間の臓器生成の可能性を高めています.
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