炎症を誘発する薬剤性銅信号伝達経路
Stéphanie Solier1, Sebastian Müller1, Tatiana Cañeque1
1Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France.
Nature
|April 26, 2023
まとめ
ミトコンドリアの銅は 細胞の代謝と表遺伝を調節することで 炎症を誘発します 新しい薬であるスーフォルミン (LCC-12) は 炎症を軽減し 細胞状態を再プログラムするために この銅池を標的とし 新しい治療戦略を提示しています
科学分野:
- 免疫学
- 細胞生物学
- 代謝の調節
背景:
- 炎症は怪我に対する 重要な免疫反応ですが 病気では過度になります
- 炎症反応を制御する正確な分子メカニズムは,まだ完全に理解されていません.
- 細胞表面グリコプロテインCD44は,免疫と癌の間に細胞の表型調節に関与する.
研究 の 目的:
- 炎症反応の 分子基盤を解明するためです
- 細胞の炎症における 銅の役割を調べるため
- 炎症経路を標的とした 治療戦略を策定する
主な方法:
- 金属,特に銅の吸収におけるCD44の役割を調査した.
- 炎症性マクロファージのミトコンドリアで反応性銅が確認された.
- NAD (H) レドックスサイクルと過酸化水素との関連を分析した.
- ミトコンドリアの銅を標的にするために,メトコンドリアのダイマーであるスーフォルミン (LCC-12) を利用した.
- マクロファージの代謝と表遺伝的再プログラムが評価された.
- バクテリアとウイルス感染のマウスモデルでのLCC-12の有効性を評価した.
主要な成果:
- CD44は銅を含む金属の吸収を媒介する.
- ミトコンドリアの銅はNADとHのリドックスサイクルを触媒化し,炎症代謝と表遺伝状態を促進する.
- LCC-12でミトコンドリアの銅を標的にすると,NAD (H) プールが減少し,マクロファージの活性化が阻害されます.
- LCC-12は,in vivoで炎症を軽減する効果を示しています.
結論:
- 銅は細胞の可塑性と炎症反応の 重要な調節物質です
- ミトコンドリアの銅を標的とした治療は 炎症性疾患に対する新しいアプローチです
- 代謝再プログラムと表遺伝子制御は 炎症管理の有効な戦略です
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