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单细胞非向性脂组学使用液体染色学离子移动性质谱法

Jinyong Kim¹, Dong-Gi Mun¹, Husheng Ding¹

¹Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota 55905, United States.

Journal of proteome research

|February 14, 2025

概括

这项研究引入了单细胞脂管学的一种新方法,使单个细胞的详细脂质分析成为可能. 这一突破推动了单细胞多组学,并提供了关于疾病细胞异质性的见解.

科学领域:

生物化学生物化学
分析化学分析化学
细胞生物学细胞生物学

背景情况:

奥米克分析现在实现了单细胞分辨率,转录组学和基因组学是领先的进展.
单细胞蛋白组学已经快速发展,但单细胞脂组学方法很少,特别是非成像方法.
单细胞脂组学为了解疾病中的细胞异质性提供了潜力,并使多细胞组学研究成为可能.

研究的目的:

开发和展示一个非向的单细胞脂管学方法.
提高脂质覆盖率,并使单细胞水平的脂质分析成为可能.
为集成的单细胞多组学奠定基础.

主要方法:

使用纳米流液体染色学-离子移动性光谱学-质谱学 (nLC-IMS-MS) 开发非向单细胞脂管学.
积极和负离子模式的应用,以最大限度地提高脂质识别.
在单细胞水平上对人类胆管癌细胞的分析.

主要成果:

在正离子模式下识别了平均161种脂质 (脂质,脂质,胆固醇,糖).
在负离子模式中平均识别了20种脂物种.
来自单细胞或低细胞输入的脂质分析新方法的演示.

结论:

一种新的非向单细胞脂管组学方法已经成功开发和验证.
该方法显著提高了脂质覆盖率,并使单细胞中详细的脂质分析成为可能.
这种方法对于推进单细胞多组学和理解细胞脂质异质性至关重要.

关键词:

这就是LC-TIMS-MS.这就是TIMS-MS.电子喷雾剂是一种电子喷雾剂.纳米流的纳米流是什么?

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