血流は,血管内皮成長因子遺伝子療法中に増殖する血管系を再構成し,毛細血管動脈化と芽生えた血管新生の間に決定します
Tuomas T Rissanen1, Petra Korpisalo, Johanna E Markkanen
1Department of Biotechnology, A.I. Virtanen Institute, Kuopio University, Kuopio, Finland.
Circulation
|December 14, 2005
まとめ
血管内皮成長因子 (VEGF) 遺伝子療法は,大動脈と静脈を含む血管樹全体の成長を促します. 血液の流れは,治療中にこの血管の改造プロセスに大きな影響を与えます.
科学分野:
- 血管生物学 血管生物学とは
- 遺伝子治療は遺伝子療法です.
- 再生医学は再生医学である.
背景:
- 臨床的に重要なプロ血管新生療法には,血管樹全体の促進が必要です.
- 血管内皮成長因子 (VEGF) は血管新生を誘導しますが,より大きな血管への影響については議論されています.
研究 の 目的:
- VEGF遺伝子療法中に血流が血管再構成に影響するかどうかを調査する.
- VEGF治療がより大きな血管の成長を促すかどうかを判断する.
主な方法:
- アデノウイルス (Ad) VEGFまたはウサギの後肢の筋肉における制御遺伝子転送.
- 介入には,一部の被験者における深部股関節動脈 (PFA) の結合も含まれていた.
- コントラスト強化超音波とダイナミック感受性コントラストMRIを用いた評価.
主要な成果:
- AdVEGFの遺伝子転送により,筋肉の浸透が著しく増加し,外周抵抗性が低下しました.
- 毛細血管が動脈のフェノタイプに変容し,拡大と循環器の覆いによって証明される.
- VEGFは,大動脈や静脈を含む血管樹全体の拡大を促し,血流の正常化を促した.
結論:
- 血流は,VEGF遺伝子療法中の血管成長の重要な調節剤です.
- VEGF過剰発現は,動脈と静脈の両方の成長を促し,毛細血管の動脈化を促進します.
- これにより,標的筋肉の超生理学的血流が促進され,治療の可能性が向上します.
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