クリック反応支援免疫細胞ターゲティング戦略による薬物を含むナノ粒子の深層腫瘍浸透
Soo Hong Lee1,2, Ok Kyu Park1,2, Jonghoon Kim1,2
1Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea.
Journal of the American Chemical Society
|August 7, 2019
まとめ
この研究は,新しいクリック反応支援免疫細胞ターゲティング (CRAIT) 戦略を導入しています. CRAITは免疫細胞を媒介体として利用し,治療結果を向上させることで,腫瘍に薬物を含むナノ粒子配送を強化します.
科学分野:
- 生物医学工学
- ナノテクノロジー
- ガン 治療
背景:
- ナノ粒子はパッシブ (EPR) またはアクティブ・ターゲティングで腫瘍への薬物投与を強化します.
- 腫瘍へのナノ粒子の浸透は限られており,異質な分布により治療効果が阻害されます.
研究 の 目的:
- クリック反応支援免疫細胞標的化 (CRAIT) 戦略を開発し,薬剤を含むナノ粒子を腫瘍に深く浸透させる.
- 血管の腫瘍領域に 薬剤を投与するベクトルとして 免疫細胞を活用する
主な方法:
- トランスサイクロオクテンの改変されたCD11b抗体は,テトラジン機能化されたメソポラスシリカナノ粒子 (MSNs-Tz) とのバイオオートホグナルクリック化学を可能にしました.
- 修正された抗体とMSN-Tzの配列注入により,CD11b+骨髄細胞へのナノ粒子の結合が容易になりました.
- この戦略は4T1の乳がんモデルでテストされた.
主要な成果:
- CRAITの戦略は 薬で満たされたナノ粒子が 腫瘍の内部に深く浸透することを達成しました
- ナノ粒子を免疫細胞に標的的に結合させることで,治療効果が向上しました.
- この方法は,ex vivo細胞操作なしに薬の投与を成功させた.
結論:
- CRAIT戦略は,ナノ粒子浸透の限界を克服するための有望なアプローチを提供します.
- この方法は免疫細胞を 標的の薬物投与のための 活性キャリアとして効果的に利用します
- CRAITの戦略は多様で,様々な細胞タイプとがん治療のためのナノケータイに適用できます.
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