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Three-dimensional Inflammatory Human Tissue Equivalents of Gingiva
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ヒトの表心脂肪組織は,炎症媒介体の源である
Tomasz Mazurek1, LiFeng Zhang, Andrew Zalewski
1Department of Surgery, Thomas Jefferson University, Suite 623, 1025 Walnut St, Philadelphia, Pa 19107, USA.
Circulation
|October 29, 2003
まとめ
心臓を囲むエピカルディアの脂肪組織は,冠動脈疾患の患者の皮膚下の脂肪よりも,インタールイキン-6や単細胞化学反応タンパク質-1のような炎症媒介物質を多く放出します.
科学分野:
- 心血管科学 心血管科学
- 炎症の研究 炎症の研究
- アディポス組織生物学
背景:
- 血管系および血管外組織からの炎症媒介物質は,冠動脈病変の発達を促します.
- 脂肪組織は内分泌器官として作用し,心血管疾患のリスクにおける炎症を増加させる可能性があります.
- 重篤な冠動脈疾患 (CAD) の炎症における結節脂肪組織 (EAT) の役割は不明である.
研究 の 目的:
- 炎症メディエーター発現を心臓上皮と皮膚下脂肪組織で比較する.重篤なCAD患者.
- 血バイオマーカーが局所脂肪組織炎症を反映しているかどうかを調べる.
主な方法:
- CABG手術を受けた42人の患者から,ペアリングされた表心および皮下脂肪組織を採取した.
- 分析されたmRNAとタンパク質のレベルは,インタールイキン-1β,インタールイキン-6,モノサイト化学毒性タンパク質-1,腫瘍死滅因子-α.
- TaqManのリアルタイムRT-PCR,ELISA,DNAマイクロアレイのハイブリッド化を使用しました.
主要な成果:
- エピカルディアの脂肪組織は,主要な炎症媒介者のmRNAとタンパク質のレベルが著しく高かったことを示した.
- EATにおける炎症は,臨床的要因と血バイオマーカー濃度とは無関係でした.
- 遺伝子発現分析と組織学は,EAT.に広範な炎症反応と細胞浸透が確認されました.
結論:
- エピカルディアの脂肪組織は,高リスクの心臓患者における炎症媒介体の重要な源である.
- プラズマ炎症バイオマーカーは,局所的な組織炎症を正確に表現できない可能性があります.
- 現在の治療法では,心臓の脂肪組織における局所的な炎症信号は解消されません.
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