磁気共鳴画像を用いた自己駆動型ジャヌスナノ触媒ロボットは,腫瘍の浸透と治療を向上させる
Zhaoli Sun1,2, Tao Wang3, Jingjing Wang1
1Beijing Key Laboratory for Magnetoelectric Materials and Devices (BKL-MMD), School of Materials Science and Engineering, Peking University, Beijing 100871, China.
Journal of the American Chemical Society
|May 16, 2023
まとめ
ジャヌスナノ触媒ロボット (JNCR) は,自己推進とナノ触媒を組み合わせることで,腫瘍の浸透と治療を強化します. これらのMRI誘導型ロボットは バイオセーフティでがん治療の改善を 期待しています
科学分野:
- 生物医学工学
- ナノテクノロジー
- 腫瘍学
背景:
- バイオメディカル・マイクロ・ナノロボットは 病気の治療には有望ですが 薬の負荷,安定性,放出に関する課題に直面しています
- マイクロ/ナノロボットをナノ触媒医学と統合することで,限界を克服し,治療成果を向上させることができます.
研究 の 目的:
- 自己駆動型ジャヌスナノ触媒ロボット (JNCRs) を開発し,インビボ腫瘍治療の強化を目指す.
- JNCRを用いて腫瘍に深く浸透し,触媒反応を誘発する治療を行う.
主な方法:
- JNCRは,H2O2で自己推進するように設計され,磁気共鳴画像 (MRI) によって導かれました.
- 近赤外線照射と鉄媒介のフェントン反応は,高温と活性酸素種 (ROS) の生成を誘導するために使用されました.
- JNCRの性能は,被動ナノ粒子と比較して,in vivoで評価された.
主要な成果:
- JNCRは腫瘍組織内の活発な動きとMRIで追跡可能な移動を示した.
- 光熱療法と化学動力学的療法の組み合わせが達成され,温度上昇とROS生成につながりました.
- 自走式JNCRは,被動ナノ粒子と比較して,より深い腫瘍の浸透と治療効果の強化を達成しました.
- JNCRはマウスモデルで生体安全性を示した.
結論:
- マイクロ/ナノロボットとナノ触媒薬の統合は 先進的な腫瘍治療の新たなアプローチを提供します.
- JNCRsは,強化された浸透と二重モード療法によって,インビオがん治療を改善する大きな可能性を示しています.
- この研究はナノロボットによる癌治療の 臨床応用への道を開きます
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