景观扩展显微镜揭示了膜和相隔器官之间的相互作用
Yinyin Zhuang1, Zhao Zhang1, Zhipeng Dai1
1Department of Developmental and Cell Biology, University of California, Irvine; Irvine, CA 92697, United States.
bioRxiv : the preprint server for biology
|December 22, 2025
概括
景观扩展显微镜 (land-ExM) 通过提高信号质量来增强细胞结构的成像. 这种超分辨率技术可视化蛋白质和脂质,揭示器官相互作用和相位分离.
科学领域:
- 细胞生物学 细胞生物学
- 显微镜的使用方法
- 生物物理学的生物物理.
背景情况:
- 扩展显微镜 (ExM) 提供超高分辨率,但对蛋白质和脂质的高信号噪声比有所困难.
- 想象细胞组件的超结构背景,包括脂质和蛋白质,对于理解细胞功能至关重要.
研究的目的:
- 介绍景观扩展显微镜 (land-ExM),这是一种用于高对比度超分辨率成像的新技术.
- 为了克服传统ExM的信号对噪声限制,同时可视化蛋白质和脂质.
主要方法:
- 开发和应用自持三功能,以增强扩展样本中的蛋白质和脂质信号.
- 使用陆地ExM进行细胞超结构的超分辨率成像,包括膜器官和相位分离.
主要成果:
- 陆地ExM显著增强蛋白质和脂质信号,使得高对比度超分辨率成像.
- 该技术准确地可视化了多样化的膜器官,相位分离和它们的三维接触点.
- 展示了三重器官接触点的可视化,其中包括应力颗粒,核道和核细胞.
结论:
- 陆地-ExM提供了一个强大的超分辨率平台,用于高对比度的细胞超结构成像.
- 这种技术有助于理解膜器官之间的空间协调和细胞内的相位分离.
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