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使用MALDI-MSI可视化单细胞脂质组

Jean Andrea Maillat¹, Nika Goršek¹, Pavel Barahtjan¹

¹Interfaculty Institute of Bioengineering and Global Health Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.

Methods in enzymology

|February 20, 2026

概括

使用矩阵辅助激光吸附离子化质谱成像 (MALDI-MSI) 的单细胞脂管学揭示了细胞对细胞的脂质多样性. 这种先进的技术以单细胞分辨率可视化脂质组,有助于理解细胞身份和疾病.

科学领域:

生物化学生物化学
细胞生物学细胞生物学
分析化学分析化学

背景情况:

脂质对细胞功能至关重要,但它们的分布高度可变.
大量质谱法方法掩盖了细胞脂质异质性.
单细胞脂类组学提供了关于定义细胞状态和组织组织的独特脂质配置的见解.

研究的目的:

开发和介绍单细胞脂管学的工作流程.
为了在细胞精度上实现内源性脂质的无标签,空间分辨的检测.
推进脂质局部化和代谢多样性的研究.

主要方法:

优化矩阵沉积的整合用于矩阵辅助激光溶解离子化质谱成像 (MALDI-MSI).
高分辨率采集和光学联合记录,用于精确的空间分析.
最小的样品扰动,以保持脂质完整性.

主要成果:

在脂质组成中表现出明显的细胞对细胞的变化.
在组织样本中揭示了邻近细胞内的连贯脂质域.
通过细胞分辨率实现了无标签,空间分辨的脂质检测.

结论:

开发的MALDI-MSI工作流提供了一个强大的和可扩展的策略,用于单细胞脂质可视化.
这种方法弥合了脂质局部化和代谢多样性之间的差距.
推进脂管学研究细胞身份,组织组织和疾病机制.

关键词:

马尔迪-MSI是什么意思脂质异质性的异质性单细胞脂管组的单细胞脂管组.空间代谢学空间代谢学

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