関連する実験動画
新発性心不全における個々のリスク評価のためのトランスクリプトミックのバイオマーカー
Bettina Heidecker1, Edward K Kasper, Ilan S Wittstein
1Miller School of Medicine, University of Miami Division of Cardiology, CRB, 1120 NW 14th St, Suite 1124, Miami, FL 33136, USA.
Circulation
|July 2, 2008
まとめ
心臓バイオプシーからの新しいトランスクリプトミックシグネチャーは,心不全 (HF) の生存率を予測することができます. このバイオマーカーは,HFと心筋病の潜在的な新しい治療目標を提供します.
科学分野:
- 心臓病学 心臓病学
- ゲノミクスゲノミクスとは
- バイオマーカーの発見
背景:
- 新発性心不全 (HF) の予後予測は,依然として重要な臨床的課題である.
- 現在の臨床試験では,生存率が低い患者と生存率が高い患者との違いを正確に区別することができない.
- エンドミオカルディアン生検からのトランスクリプトミックシグネチャーは,HFの新たな予後バイオマーカーとして仮説化されています.
研究 の 目的:
- 新発性心不全 (HF) の患者の予後を予測するために,心内組織生検からのトランスクリプトミックシグネチャーの可能性を調査する.
- HF患者の良好な生存結果と悪い生存結果を区別する遺伝子発現プロフィールを特定する.
主な方法:
- 新たに発症したHF (1997-2006) の350人の患者から採取されたエンドミオカルディアル生検サンプルと臨床データ.
- 極端な生存フェノタイプを有する選択された患者:良好な予後 (n=25) と悪い予後 (n=18)
- Affymetrix U133 Plus 2.0 マイクロアレイと統計分析 (SAM,PAM) を利用して,トランスクリプトミックのサインを特定し,検証しました.
主要な成果:
- 予後が良いグループと悪いグループで46の過剰発現遺伝子を特定し,予測のために45が選択されました.
- トランスクリプトミックのバイオマーカーは,検証後,HFの予後を予測するのに74%の感度と90%の特異性を達成しました.
- バイオマーカーは50のランダムなパーティションで堅実な予測性能を示した.
結論:
- エンドミオカルディアの生検から得られたトランスクリプトミカルバイオマーカーは,新規発症のHFの予後を予測する有望なことを示しています.
- 特定された遺伝子シグネチャーは,HFと心筋病の新たな治療標的を提供することができる.
- このアプローチは,HF患者のパーソナライズされたリスク分層化のための潜在的なツールを提供します.
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