spiroisoxazoline SMARt-420によるMycobacterium tuberculosisにおける抗生物質耐性の回復
Nicolas Blondiaux1, Martin Moune1, Matthieu Desroses2,3
1Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR8204-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France.
まとめ
研究者は新しい分子である SMARt-420 を開発し 結核の抗生物質耐性に対抗しました この小さな分子 (SMARt-420) は,眠っている経路を再活性化し,エチオナミドに対する耐性を克服し,マウスの感染を排除します.
科学分野:
- 微生物学
- 薬物の発見
- 抗菌剤に対する耐性
背景:
- 抗生物質耐性,特に多剤耐性および広範囲にわたる耐性菌 (Mycobacterium tuberculosis) は,世界的な健康上の重大な脅威となっている.
- 多くの重要な抗結核抗生物質は前薬であり,耐性はしばしば細菌の生物活性化経路の変異から生じる.
研究 の 目的:
- エチオナミドの生物活性化経路を回避する 新薬のような分子を開発する
- "Mycobacterium tuberculosis"のレジスタンスメカニズムを克服できる化合物を特定する.
主な方法:
- 代替生物活性化経路を狙った小分子設計と合成
- エチオナミド耐性菌株 (Mycobacterium tuberculosis) に対する候補分子のインビトロおよびインビボ試験
- SMARt-420の感染除去と細菌の感受性を調節する効果の評価
主要な成果:
- 小分子中絶抵抗 (SMARt-420) という新しい分子は,エチオナミドの暗号化された生物活性化経路を活性化するために開発されました.
- SMARt-420は* Mycobacterium tuberculosis*においてエチオナミドによる耐性を完全に逆転させる能力を示した.
- SMARt-420による治療はマウスモデルでエチオナミド耐性感染症を治し,エチオナミドに対する細菌の感受性を高めました.
結論:
- SMARt-420は,結核におけるエチオナミド耐性に対する第一級の治療戦略です.
- 代替生物活性化経路をターゲットにすることは 抗菌剤耐性を克服する有望なアプローチです
- この戦略は,耐性菌株に対する既存の抗生物質の有効性を回復させる可能性があります.
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