血清溶性熱ショックタンパク質60は,一般集団における動脈硬化症の被験者において上昇しています
1Institute for Biomedical Aging Research, Austrian Academy of Sciences, Innsbruck. qingbo.xu@oeaw.ac.at
Circulation
|July 6, 2000
まとめ
溶性熱ショックタンパク質60 (sHSP60) の高濃度が動脈硬化に関連している. この発見は,sHSP60が血管炎症と疾患発症に役割を果たす可能性があることを示唆しています.
科学分野:
- 免疫学 免疫学とは
- 心血管医学 心血管医学
- 分子生物学は分子生物学である.
背景:
- 以前の研究で,熱ショックタンパク質60 (HSP60) 抗体とHSP60反応性T細胞が動脈硬化症と関連付けられていた.
- HSP60は,血管疾患の重要な役割を果たす内皮細胞とマクロファージを直接活性化することが示されています.
研究 の 目的:
- 動脈硬化症における循環溶性HSP60 (sHSP60) の存在と役割を調査する.
- sHSP60レベルが頸動脈動脈硬化症および関連する危険因子と相関するかどうかを判断する.
主な方法:
- 40歳から79歳までの826人の被験者を対象とした人口ベースの研究です.
- 血清のsHSP60の測定,様々な抗体 (抗リポポリサッカリド,抗HSP65,抗クラミジア,抗ヘリコバクターピロリ),急性相反応物質,および全身性炎症マーカー.
- 頸動脈動脈硬化症 (1990年,1995年) と他の15の危険因子の評価.
主要な成果:
- 血清のsHSP60濃度は,大動脈動脈硬化症の有病および有病の被験者において有意に上昇した.
- sHSP60レベルは,従来の危険因子とは無関係に,一般的な頸動脈内側/中枢の厚さと相関しています.
- sHSP60は,炎症,慢性感染症,および特定の抗体のマーカーと関連しており,感染した被験者の動脈硬化リスクが増加しました.
結論:
- この研究は,sHSP60と動脈硬化症の強い相関の最初の証拠を提供します.
- sHSP60は,血管細胞と免疫系を活性化することによって,動脈硬化に寄与する可能性があります.
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