リポソーム・アシストメタボリック・グリカン・ラベリングのメカニズム調査と多重化
Yuting Sun, Senlian Hong, Ran Xie
1Departments of Molecular Medicine and Immunology and Microbiology , The Scripps Research Institute , La Jolla , California 92037 , United States.
Journal of the American Chemical Society
|February 16, 2018
まとめ
リポソームアシスタド・バイオオートゴーナル・レポーター (LABOR) 戦略は,細胞型選択的代謝性グリカンラベルを可能にします. この方法は,精密なグリカンイメージングとプロファイリングのためのエンドサイトーシス救済経路を使用します.
科学分野:
- 生物化学
- 細胞生物学
- 化学生物学
背景:
- メタボリックグリカンラベルは,グリカン画像とグリコプロテオミクプロファイリングに不可欠です.
- 主な制限は,現在の方法の細胞タイプ選択性の欠如です.
- リポソームアシスタド・バイオオートゴーナル・レポーター (LABOR) 戦略は潜在的な解決策を提供します.
研究 の 目的:
- LABOR戦略の基礎となるメカニズムを明らかにする.
- 選択的なラベル付けのためのLABORのマルチプレキシング能力を探求する.
- LABORの適用範囲を広げ,様々な細胞タイプをターゲットにします.
主な方法:
- レセプターメディエートされたエンドサイトーシスを用いたLABORのメカニズム的調査.
- リソソームの密輸とリポソームからのアジド糖の放出
- 様々なリガンド受容体ペアの評価を対象としたシアログリカンラベリング
主要な成果:
- LABORはエンドサイトーシスの救済メカニズムで働き,ライソソームにアジド糖を放出します.
- アジド糖は,リゾソーム糖輸送体によって細胞溶液に運ばれます.
- 異なる化学レポーターを用いた共同培養細胞におけるシオログリカンのマルチプレックスラベリングに成功した.
結論:
- 解明されたメカニズムは,LABORの細胞タイプ選択性を支持する.
- LABORは汎用性があり,標的を特定するために様々なリガンドタイプに対応します.
- マルチプレックスされたLABORは,異なる細胞集団で同時に選択的なグリカンラベルを可能にします.
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