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Updated: Feb 7, 2026
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CD137はヒトの大動脈硬化症で発現し,高コレステロール血症のマウスのプラーク炎症の発症を促進する
Peder S Olofsson1, Leif A Söderström, Dick Wågsäter
1Center for Molecular Medicine, L8:03, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden. Peder.Olofsson@ki.se
Circulation
|February 21, 2008
まとめ
CD137-CD137L経路は,自己免疫疾患に関与しており,動脈硬化を促進します. この相互作用は炎症と白血球の徴募を増加させ,疾患の進行に貢献します.
科学分野:
- 免疫学 免疫学とは
- 心血管生物学 心血管生物学
- 動脈硬化症の病原性について
背景:
- 炎症は,動脈硬化症の発達と進行に中心的な役割を果たします.
- CD40/CD40LとOX40/OX40Lを含む腫瘍死滅因子スーパーファミリー分子が,動脈硬化プロセスに関与しています.
研究 の 目的:
- 動脈硬化症の病原性におけるCD137とそのリガンド (CD137L) の役割を調査する.
- CD137-CD137Lの相互作用が動脈硬化病変の発生と炎症に寄与するかどうかを判断する.
主な方法:
- 人間の動脈硬化病変におけるCD137タンパク質の検出.
- 炎症誘発性サイトカインによって,内皮細胞および滑らかな筋肉細胞におけるCD137発現の誘導.
- 細胞内皮細胞と滑らかな筋肉細胞に対するCD137活性化効果の評価 in vitro.
- アポリポプロテインE欠乏症のマウスにCD137アゴニストを投与し,動脈硬化に対する効果を評価した.
主要な成果:
- CD137タンパク質は,ヒトの動脈硬化性損傷内のT細胞,内皮細胞,および滑らかな筋肉細胞に発見されました.
- 炎症誘発性サイトカインは,培養された内皮細胞と滑らかな筋肉細胞でCD137発現を誘発した.
- CD137LによるCD137活性化により,内皮粘着分子発現が増加し,滑らかな筋肉細胞の増殖が減少しました.
- マウスにおけるCD137アゴニスト治療は,動脈硬化炎症,T細胞浸透,およびサイトカイン発現を悪化させた.
結論:
- CD137-CD137Lの相互作用は,アテロゲネシスの病原性経路を表しています.
- これらの相互作用は,白血球の徴募と炎症を促進することによって,動脈硬化を促進します.
- CD137-CD137L軸をターゲットにすることで,動脈硬化症の治療戦略を提供することができる.
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