PDGFR-β受容体サブユニット発現のアンチセンセスオリゴヌクレオチド抑制は,親密な加厚の抑制を導きます
M G Sirois1, M Simons, E R Edelman
1Harvard-MIT Division of Health Sciences and Technology, Cambridge, Brigham and Women's Hospital (E.R.E.), Boston, Mass, USA. mgsirois@mit.edu
Circulation
|February 4, 1997
まとめ
血小板由来成長因子ベータ受容体 (PDGFR-β) を標的としたアンチセンセスのオリゴヌクレオチドは,血管損傷後のネオインティマル形成を著しく減少させた. PDGFR-βの発現抑制またはPDGF-BBによる活性化は,血管疾患の潜在的な治療戦略です.
科学分野:
- 血管細胞生物学 血管細胞生物学
- 血管疾患の分子メカニズム
- 遺伝子療法の応用 遺伝子療法の応用
背景:
- 血管細胞生物学の進歩は,血管疾患の病理生理学に情報を与えています.
- アンチセンスオリゴヌクレオチド遺伝子療法は,細胞増殖のための重要なタンパク質を特定します.
- 血管疾患における化学作用因子と受容体は,まだ十分に研究されていない.
研究 の 目的:
- PDGFR-β発現を減少させるアンチセンスオリゴヌクレオチドの能力を評価する.
- ネオインティマルの形成にPDGFR-βの寄与を決定する.
- 血管増殖のための治療戦略を調査する.
主な方法:
- PDGFR-β mRNAを標的としたアンチセンスオリゴヌクレオチドの周周血管投与.
- 損傷した頸動脈におけるPDGFR-βタンパク質発現の定量化.
- ネオインティマル形成の評価とPDGFR-β発現との相関.
主要な成果:
- アンチセンスオリゴヌクレオチドは,PDGFR-βタンパク質発現をほぼ廃止しました.
- ネオインティマルの形成は,2つの異なるアンチセンセスのシーケンスで80%と60%減少した.
- ネオインティマルの形成は,PDGFR-β発現と指数関数的な相関を示した.
結論:
- ミオインティマルの増殖は,PDGFR-βの過剰発現とPDGF-BBの活性化に依存しています.
- PDGFR-βまたはPDGF-BBの抑制は,ネオインティマルの形成を抑制することができます.
- PDGFR-βを標的にすることは,血管増殖性疾患の潜在的な治療方法を示しています.
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