腫瘍の微環境を標的としたがん治療のためのマイクロRNAサイレンシング
Christopher J Cheng1, Raman Bahal2, Imran A Babar3
11] Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, USA [2] Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, USA [3] Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06511, USA.
Nature
|November 20, 2014
まとめ
研究者は,酸性腫瘍の微環境を標的とした,antimiRs (アンチセンセスのオリゴマー) のための新しい配送プラットフォームを開発しました. このプラットフォームは,マウスリンパ腫モデルにおけるオンコミRを効果的に抑制し,標的を絞ったがん薬の投与のための新しい戦略を提供します.
科学分野:
- 分子生物学は分子生物学である.
- 腫瘍学 腫瘍学
- 薬物の配達 薬物の配達
背景:
- マイクロRNAは遺伝子発現を調節し,生物学的プロセスにおいて極めて重要です.
- 調節不良のマイクロRNA,特にオンコミRは,がんの発症に関与しています.
- 現在のアンチミリR治療は,腫瘍細胞へのインビボ投与で課題に直面しています.
研究 の 目的:
- 酸性腫瘍の微小環境を標的とした新しいantimiR配信プラットフォームを導入する.
- 現在のantimiRの有効性を阻害する生理学的および細胞的障壁を克服するために.
- 癌治療のためのpHLIPと結合されたペプチド核酸抗ミリRの可能性を調査する.
主な方法:
- ペプチド核酸抗ミリRとpH感受性ペプチド (pHLIP) の結合.
- 酸性腫瘍の微小環境 (pH ~6) を標的とするコンストクトの能力の評価.
- 非内皮細胞経路による細胞侵入の評価.
- miR-155 oncomiRを抑制するためのリンパ腫のマウスモデルでの試験.
主要な成果:
- 新しいpHLIP-antimiRコンストラクタは,酸性腫瘍の微小環境を成功裏に標的とした.
- このプラットフォームは,酸性条件下で,プラズマ膜を横断するantimiR輸送を容易にした.
- miR-155 oncomiRの効果的な阻害は,マウスリンパ腫モデルで観察されました.
結論:
- 開発されたantimiR配達プラットフォームは,標的がん治療の有望性を示しています.
- このアプローチは,主要な配送障壁を克服し,オンコミR抑制のための新しい戦略を提供します.
- この研究は,抗がん剤としての抗ミリル剤の新たなモデルを提示し,薬物投与に関する広範な意味合いを持つ.
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