组织上化学衍生策略的最新进展,用于增强MALDI-MSI
Meng Huang1,2, Xiaoyu Qi2,3, Dafu Zhu2
1School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
Mass spectrometry reviews
|December 4, 2025
概括
组织上化学衍生物化 (OTCD) 增强了矩阵辅助激光消耗/电离质谱成像 (MALDI-MSI) 以实现更广泛的分子检测. 本综述详细介绍了用于提高电离效率和组织成像中的生物相关性的试剂和策略.
科学领域:
- 生物医学研究的研究.
- 分析化学是一种分析化学.
- 分子成像学分子成像学
背景情况:
- 矩阵辅助激光脱/电离质谱成像 (MALDI-MSI) 能够在组织中无标签,无目标地检测生物分子的空间.
- MALDI-MSI的局限性包括某些分析物的低电离效率和化学不稳定性.
- 组织内化学衍生物化 (OTCD) 是克服这些检测挑战的关键策略.
研究的目的:
- 系统地审查用于MALDI-MSI的衍生试剂的开发和应用.
- 要突出OTCD如何提高分析物的检测范围和生物相关性.
- 讨论OTCD在各种生物样本中的应用及其相关挑战.
主要方法:
- 关于衍生试剂及其在MALDI-MSI中的使用的科学文献的综述.
- 根据目标反应性功能组 (胺基,碳基等) 进行试剂分类. ) 的情况.
- 分析提高电离效率,分子量和减少背景噪音的策略.
主要成果:
- 开发针对各种功能组的多种衍生试剂.
- 在检测范围和对代谢物,脂质,蛋白质和甘氨酸的灵敏度的证明增强.
- 在不同的生物样本类型中成功应用OTCD.
结论:
- 在生物医学研究中,OTCD是提高MALDI-MSI能力的关键技术.
- 优化的衍生策略提高了从组织中获得的分子信息的深度和广度.
- 需要对实验工作流程和组织完整性的进一步研究,以最大限度地发挥OTCD的潜力.
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