定量的心筋サイトカイン発現とアポプトシス経路の活性化は,左心室補助装置を必要とする患者の場合
1National Heart and Lung Institute at Imperial College School of Medicine, Royal Brompton and Harefield Hospital, Harefield, Middlesex.
Circulation
|September 25, 2001
まとめ
LVアシストデバイス (LVAD) を必要とする心不全が悪化している患者は,炎症性サイトカインの腫瘍死滅因子アルファ (TNF-alpha),インタールイキン-1β (IL-1β),およびIL-6の上昇を示しています. 心筋と血清におけるこれらの分子変化は,LVAD治療のタイミングと結果に影響を与える可能性があります.
科学分野:
- 心臓病学 心臓病学
- 免疫学 免疫学とは
- 分子生物学は分子生物学である.
背景:
- LVアシストデバイス (LVAD) のインプランテーション中に患者の悪化のメカニズムは完全に理解されていません.
- 進行性心不全における炎症性サイトカインとアポプトシス経路の調査は極めて重要です.
研究 の 目的:
- LVADのサポートを必要とする患者の炎症マーカーとアポプトシス経路の活性化を,選択心臓移植を受けている患者と比較するために.
- 悪化する心不全患者の分子差異を解明する.
主な方法:
- LVAD患者および心臓移植受信者からの心筋と血清のサンプルを分析.
- 腫瘍死滅因子-アルファ (TNF-alpha),インタールイキン-1β (IL-1β),およびIL-6 mRNAおよびタンパク質レベルの測定.
- カスパスおよびDFF-45.5を含むアポプトシス経路マーカーの評価
主要な成果:
- LVADの患者は,心筋TNF-α,IL-6,およびIL-1βのmRNAおよびタンパク質が増加した.
- TNF-αとIL-6の血清濃度は,LVAD患者において有意に高かった.
- プロカスペーゼ9および割れたカスペーゼ9のようなアポプトシス経路の成分は,LVAD患者で増加しました.
結論:
- LVADのサポートを必要とする心不全が悪化している患者は,心筋および血清の炎症性サイトカイン (TNF-α,IL-1β,IL-6) の増加を示しています.
- これらの患者では,アポプトシス経路の変異がある.
- 発見は,潜在的な治療的影響を示唆し,LVAD挿入の最適なタイミングに影響を与えます.
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