C3欠乏が動脈硬化に及ぼす影響
Chiara Buono1, Carolyn E Come, Joseph L Witztum
1Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass 02115, USA.
Circulation
|June 26, 2002
まとめ
補足成分3 (C3) の欠乏は,動脈硬化症を悪化させる. C3欠乏したマウスは,より大きな動脈硬化病変を示し,マクロファージが増大し,滑らかな筋肉細胞とコラーゲンが減少し,病変の成熟が損なわれたことを示しました.
科学分野:
- 免疫学 免疫学とは
- 心血管科学 心血管科学
- 動脈硬化症の研究研究
背景:
- 動脈硬化症における補完体活性化の役割は不明である.
- 心血管疾患の進行に対する補充の影響を調査することは極めて重要です.
研究 の 目的:
- 動脈硬化症の程度と病変の特徴に対するC3欠乏の影響を決定する.
- 補完体系の整合性と動脈硬化性プラークの形成の関係を解明する.
主な方法:
- 低密度リポプロテイン受容体 (ldlr) /C3欠乏性マウスと高コレステロール食事のコントロールにおける大動脈動脈硬化症の分析.
- 病変の大きさ,脂質の堆積,マクロファージの含有量,滑らかな筋肉の細胞,動脈硬化性プラークのコラーゲンの評価.
主要な成果:
- C3欠乏症のマウスは,対照群と比較して,大動脈に著しく大きな動脈硬化病変を示した.
- C3欠乏マウスの病変では,マクロファージの浸透が増加し,滑らかな筋肉細胞とコラーゲン含有量が減少した.
- 血清リポプロテインと免疫グロブリンレベルは,グループ間で比較可能であり,C3の効果を隔離しました.
結論:
- 完ぺきな補完系は,初期発泡細胞段階を超えた動脈硬化性病変の成熟に不可欠である.
- 補足成分3は,動脈硬化性プラークの発達と安定性を調節する上で重要な役割を果たします.
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