光活性化有機半導体プロナノ酵素
Jingchao Li1, Jiaguo Huang1, Yan Lyu1
1School of Chemical and Biomedical Engineering , Nanyang Technological University , 70 Nanyang Drive , Singapore 637457 , Singapore.
Journal of the American Chemical Society
|February 12, 2019
まとめ
この研究は,がん治療のための光活性化有機半導体プロナノ酵素 (OSPE) を導入します. OSPEは,近赤外線活性化時にシングレット酸素を生成し,RNAを分解することによって,腫瘍の成長と転移を抑制する.
科学分野:
- 生物医学工学
- ナノテクノロジー
- ガン 治療
背景:
- 治療用酵素はがん治療の可能性を秘めているが,in vivoの特異性は欠けている.
- 標的がん療法における酵素活性の遠隔制御は,依然として重要な課題である.
研究 の 目的:
- 標的がん治療のための光活性化有機半導体プロナノ酵素 (OSPE) を開発する.
- 腫瘍の成長と転移を阻害するOSPEの能力を研究する.
主な方法:
- 光活性化特性を持つ有機半導体プロナノ酵素 (OSPE) の開発
- 近赤外線 (NIR) を利用してOSPEを活性化し,シングレット酸素 (PDT) を生成し,RNAを分解する.
- 腫瘍の成長と転移の抑制に対するマウス異種移植モデルにおけるOSPEの有効性を評価する.
主要な成果:
- OSPEは光ダイナミック療法 (PDT) のNIR照射で細胞毒性シングレット酸素 (1O2) を生成する.
- OSPEは腫瘍の微小環境でRNAの分解を誘発し,転移に関連したタンパク質を抑制します.
- OSPEは腫瘍の成長と肺転移を in vivoで完全に抑制し,従来のPDT剤を上回った.
結論:
- 開発されたOSPEは,光活性化され,がん特異的なシナージ療法を提供します.
- このアプローチは,原発腫瘍の成長と転移の両方を抑制することによって,がん治療において完全な寛解の可能性を示しています.
- OSPEは進行した癌の治療のための有望な光療法プロ酵素戦略です.
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