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Gene Transfer to the Developing Mouse Inner Ear by In Vivo Electroporation
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低レベル in vivo の遺伝子転送は,穿孔した風船キャセターを通って動脈壁に伝わります
M Y Flugelman1, M T Jaklitsch, K D Newman
1Molecular Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.
Circulation
|March 1, 1992
まとめ
この研究では,風船カテーテルを使用して動脈壁のための急速な遺伝子転送方法を開発しました. 1分以内に成功する一方で,トランスデュースされた細胞の数が少ないため,冠動脈リステノシスに対する治療的応用が制限されています.
科学分野:
- 心血管科学の研究について
- 遺伝子療法の遺伝子治療法
- 血管生物学 血管生物学
背景:
- 冠動脈静止症は,重要な臨床的課題となっています.
- 動脈壁の現在の遺伝子転送方法は,長期の血管閉塞 (30分) を要求します.
- 臨床的関連性のために,より迅速な遺伝子転送プロトコルが必要である.
研究 の 目的:
- 動脈壁のための迅速な in vivo 遺伝子転送プロトコルの開発と評価.
- 臨床的に適切な時間枠 (30分未満) の内での遺伝子転送を達成するために.
主な方法:
- ウサギの大動脈にレトロウイルスベクトルを注入するために,穿孔 (ウォリンスキー) バルーンカテーテルを使用しました.
- 遺伝子転送は1分間の輸液期間で達成されました.
- ヒストキミカル染色 (β-ガラクトシダゼ) を使用して遺伝子転送が検出され,ポリメラーゼ連鎖反応 (PCR) で確認されました.
主要な成果:
- 遺伝子転送は,注射後5〜14日以内にウサギの大動脈で検出されました.
- PCR分析により,ベクトル注入した大動脈におけるベクトル配列のレベルがコントロールと比較して低いことが明らかになった (p < 0.03).
- 大動脈組織の2センチメートルのセグメントあたり100個未満のトランスデュースされた細胞が特定されました.
結論:
- 動脈壁へのインビオ遺伝子転送は,風船キャセターを使用して1分間の輸液で実現可能である.
- この急速な遺伝子転送法の治療効果は,現在,成功裏にトランスデュースされた細胞の数が少ないことによって制限されています.
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