活性化可能な光探知器による前立腺がんの光検出
Minoru Kawatani, Kyoko Yamamoto, Daisuke Yamada1
1Department of Urology, Faculty of Medicine , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8655 , Japan.
Journal of the American Chemical Society
|June 28, 2019
まとめ
研究者は手術中に前立腺がん (PCa) を検出するための新しい光センサーを開発しました. この探知器は前立腺特異性膜抗原 (PSMA) のグルタミン酸カルボキシペプチダース活性を視覚化し,PCaの正確な診断に役立ちます.
科学分野:
- 腫瘍学
- 生物化学
- 医療用イメージング
背景:
- 前立腺がん (PCa) は,成人男性における有病性腫瘍である.
- PCaの手術内検出は,特に神経を節約する手術で,ポジティブな外科的限界を最小限に抑えるために重要です.
- 前立腺特異性膜抗原 (PSMA) はPCaの有望なバイオマーカーであり,グルタミン酸カルボキシペプチダース (CP) 活性で認識されています.
研究 の 目的:
- PCaの手術中の可視化のための迅速な光ベースの方法を開発する.
- PSMAのCP活性を狙った新しい活性化可能な光センサーを設計し合成する.
- 手術中にPCaをリアルタイムで検出できるように
主な方法:
- PSMA認識を利用したアリルグルタミン酸結合体の設計と合成
- 光誘導電子移転 (PET) 機構を使用して,探査機の低いLUMOエネルギーレベルを使用して,光を消す.
- 生体細胞と臨床PCa標本におけるPSMA CP活性を視覚化する探査機の能力を検証する.
主要な成果:
- PSMA CP活動のための,クラスで初めての活性化可能な光センサーの設計と合成が成功しました.
- 生体細胞におけるPSMA CPの活性を示すことが示された.
- 前立腺がん患者の臨床試験で検査効果が確認された.
結論:
- 開発された活性化可能な光センサーは,PSMA CPの活動を効果的に可視化します.
- この探知器は,前立腺がんの迅速な手術内検出と診断のための貴重なツールです.
- これらの発見は,PCaのマージンを正確に特定することを可能にすることで,外科的結果を改善すると予想されます.
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