相关实验视频
Updated: Feb 11, 2026

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Robust 3D DNA FISH Using Directly Labeled Probes
Published on: August 15, 2013
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用于不对称和长达一周的溶酶体标签的内细胞叶片DNA探针的迁移
An Yan1,2, Yuhan Kong1,3, Yuxing Shang1
1School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China.
Journal of the American Chemical Society
|February 10, 2026
概括
研究人员开发了一种新方法,RELAY (Endocytic Leaflet tAg的转移到修改器官),用于在活细胞中长期的溶酶体成像. 这种技术克服了以前的局限性,使得 lysosomal 动态和细胞间传输的稳定可视化.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 溶酶体可视化对于理解细胞功能至关重要.
- 现有的探针往往会破坏 lysosomal 化学和缺乏长期成像的稳定性.
研究的目的:
- 开发一种新的,稳定的标签策略,用于在活细胞中长期的溶酶体成像.
- 为了克服当前探测器的局限性,例如信号泄漏和光化学的破坏.
主要方法:
- 开发了RELAY (Endocytic Leaflet tAg的转移到修改器官),这是一个保存拓的标签策略.
- 利用脂质体细胞膜融合来将DNA探针在血膜的内部小册子上.
- 采用内细胞运输来将探针转移到 lysosomal 外表面,从而创建稳定的不对称标签.
主要成果:
- 在活细胞中实现了为期一周的高准确度溶酶体成像.
- 在细胞衰老过程中可视化了 lysosomal 动态.
- 通过道化纳米管发现了随机的,单向的,细胞间 lysosomal 转移.
结论:
- RELAY提供了一种可靠的方法,用于长时间,稳定的溶酶体可视化.
- 这种技术有助于探索细胞过程和通信中的 lysosomal 功能.
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