デソルプションエレクトロスプレーイオン化質量分析イメージング:原理、進歩、および学際的応用
Yan Wang1,2, Huannan Wang2, Shuncun Zhang2
1School of Pharmaceutical Sciences & Institute of Materia Medica, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
Journal of mass spectrometry : JMS
|December 30, 2025
まとめ
デソルプションエレクトロスプレーイオン化質量分析イメージング(DESI-MSI)は、生物組織のラベルフリー分子マッピングを提供する。解像度の課題にもかかわらず、生物医学、製薬、植物科学における利用が進歩している。
科学分野:
- 分析化学; 生体医用画像処理; 質量分析
背景:
- DESI-MSIなどの環境イオン化技術は、複雑なサンプル調製なしに分子マッピングを可能にする。2004年以来、DESI-MSIは、組織内の分子分布を可視化するための機器とデータ処理において進歩してきた。大気圧下でのラベルフリー、マトリックスフリー分析を提供する。
研究 の 目的:
- DESI-MSIの原理、機器、パラメータを体系的にレビューする。ナノスケールDESIや強化溶媒添加剤などの最近の技術的進歩を評価する。様々な科学分野におけるDESI-MSIの学際的な応用を検討する。
主な方法:
- DESI-MSIの基本原理と機器構成のレビュー。ナノスケールDESIや添加剤強化溶媒などの技術的進歩の批判的評価。生物医学、製薬、植物科学における学際的な応用の包括的な検討。
主要な成果:
- DESI-MSIは、組織内の多様な分子(脂質、代謝物、薬物)の高スループットな可視化を提供する。ナノスケールDESIはサブ50μmの空間分解能を実現し、添加剤強化溶媒は感度と特異性を向上させる。応用には、がんマージンの区別、バイオマーカー発見、薬物分布分析、植物化学物質マッピングが含まれる。
結論:
- DESI-MSIは、臨床診断や薬物スクリーニングに応用可能な空間メタボロミクスのための変革ツールである。将来の方向性には、マルチモーダルイメージング、データ分析のための機械学習、臨床応用が含まれる。利点にもかかわらず、空間分解能とデータ解釈における課題は残っている。
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