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Intramyocardial Cell Delivery: Observations in Murine Hearts
Published on: January 24, 2014
逆行性冠内輸液による心臓発作のラットハートへの標的細胞投与:分布,動態,心臓機能への影響
Ken Suzuki1, Bari Murtuza, Satsuki Fukushima
1Harefield Heart Science Centre, Department of Cardiothoracic Surgery, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, UK. k.suzuki@ic.ac.uk
Circulation
|September 15, 2004
まとめ
逆行性冠内細胞移植は,心臓発作の心臓に細胞を効果的に送ります. この新しい方法は,心臓の機能と寸法を改善し,心筋梗塞の治療に有望な戦略を提供します.
科学分野:
- 心血管研究 循環器科の研究
- 再生医学は,再生医療である.
- 細胞療法 細胞療法
背景:
- 冠動脈内細胞移植は,心筋の修復のために直接注射よりも利点があります.
- 細胞配送のための動脈経路は,栓塞症や不血性領域へのアクセス制限などの課題に直面しています.
- 逆行性冠内細胞植入を評価するために,新しいラットモデルが開発されました.
研究 の 目的:
- 心臓発作を患ったネズミの心臓に逆行性冠内細胞移植の効率を評価する.
- 細胞の分布,保持,心臓の機能への影響を評価するために,心臓発作後.
主な方法:
- 骨格筋の前駆細胞は,心筋梗塞後のネズミの左心静脈に逆行的に注入されました.
- 細胞の分布と保持は,in situ染色と酵素活性測定を用いて追跡された.
- 心臓の機能と寸法は,エコーカルディオグラフィとランゲンドルフ perfusion を使って評価されました.
主要な成果:
- ドナー細胞は,心臓発作と境界地帯を含む左心室自由壁全体に10分以内に拡散します.
- 輸液後3日から14日までの間,心筋内の細胞保持量が有意に増加した.
- 細胞移植により,心臓の機能とサイズが改善され,コラーゲンの堆積が28日減少しました.
結論:
- 逆行性冠内細胞移植は,心臓発作の心臓に細胞を運ぶための効果的な戦略です.
- このアプローチは,心臓機能を改善し,心筋梗塞を治療する可能性を示しています.
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