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ダイナミック・コヴァレンント・バインディング・モチーフのファージ表示は,標的型抗生物質の開発を容易にする
Kelly A McCarthy1, Michael A Kelly1, Kaicheng Li1
1Department of Chemistry, Merkert Chemistry Center , Boston College , Chestnut Hill , Massachusetts 02467 , United States.
Journal of the American Chemical Society
|April 28, 2018
まとめ
新しいファグディスプレイプラットフォームは,特定の細菌株のペプチドプローブを迅速に特定し,抗生物質耐性の増大と戦うために標的の抗生物質開発と診断を可能にします. このアプローチは,Staphylococcus aureusやAcinetobacter baumanniiのような耐性病原体に対する狭いスペクトルの治療法を開発するのに役立ちます.
科学分野:
- 微生物学
- バイオテクノロジー
- 薬物の発見
背景:
- 細菌の抗生物質耐性は 世界的な健康上の脅威です
- 広範囲の抗生物質の過剰使用は 耐性を引き起こすため 標的型治療が必要になります
- 狭いスペクトルの薬剤が必要で 病原体を排除しながら 有益な細菌を保存する
研究 の 目的:
- 細菌株に対する特定のペプチドプローブの迅速な識別のためのファグ表示プラットフォームを開発する.
- 菌株特有の殺菌剤を開発する方法を開発する.
- 耐性菌に対する新しい診断ツールと抗生物質の緊急需要に対処する.
主な方法:
- バクテリアの細胞表面にダイナミックな共振結合のために,2- アセチルフェニルボロン酸を組み込んだファグディスプレイライブラリを使用した.
- Staphylococcus aureusとAcinetobacter baumanniiの臨床株を含む生細菌細胞に対してファグライブラリをスクリーニングしました.
- 特定されたペプチドを 毒素を放出する特定の殺菌剤に変換した.
主要な成果:
- 抗生物質に耐性のあるStaphylococcus aureusとAcinetobacter baumannii株のサブミクロモラーおよび高度に特異的なペプチド結合剤を特定した.
- ペプチドプローブを標的細菌殺菌剤に変換したことが実証された.
- 広範囲のバクテリア菌株に対する プラットフォームの適用性を検証した.
結論:
- 記述されたファグディスプレイプラットフォームは,特定の細菌標的ペプチドの迅速な識別を容易にする.
- この技術により 菌株特有の抗生物質と診断ツールが開発できます
- 抗生物質耐性対策と 感染症治療の改善に 有望な戦略です
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