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Updated: Apr 28, 2026

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Visualization of Endoplasmic Reticulum Subdomains in Cultured Cells
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一个二合一的探头:图像化脂滴和内质网膜在一并进行
Shabnam Mansuri1, Paramasivam Mahalingavelar2, Virupakshi Soppina3
1Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India. sriram@iitgn.ac.in.
Journal of materials chemistry. B
|February 6, 2024
概括
新的光探测器允许同时可视化内质网膜 (ER) 和脂质滴 (LDs). 这些新型探测器可以实时研究细胞脂质动态和器官相互作用.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 有机化学 有机化学
背景情况:
- 细胞内膜网膜 (ER) 合成脂质,脂质滴 (LD) 储存它们,复杂的相互作用对细胞功能至关重要.
- 同时可视化ER和LD对于理解它们的动态相互作用至关重要.
- 开发特定的光探头是实时亚细胞成像的关键.
研究的目的:
- 开发新的光探测器,同时对ER和LD进行分辨成像.
- 调查探针结构的作用,特别是五二 (PFP) 部分和水性,以准ER和LDs.
- 利用这些探测器研究ER区域内的LD生物发生和动态.
主要方法:
- 新型捐赠者-π-受体 styryl 光体 (PFC, PFN, PFB) 的合成,其中包含一个五二 (PFP) 组.
- 展示单次激发波长成像用于独特的ER和LD可视化.
- 在油酸处理后使用探头观察LD大小,分布和生物发生的变化.
主要成果:
- 合成的光体表现出具有选择性的ER和LD向,具有单一的激发波长.
- PFP部分增强了ER的选择性,而整体的疏水性推动了LD的向.
- 在油酸刺激后,成功使用探头监测LD动态,包括大小和分布变化.
- 光体表现出强烈的排放,需要低度 (∼100 nM),具有最小的细胞毒性,并且光稳定.
结论:
- 新型 styryl fluorophores 为 ER 和 LD 同时成像提供了强大的工具.
- 这些探测器可以实时阐明亚细胞动态和器官相互作用.
- 设计的探针适用于研究细胞系统中的脂质代谢和有机体生物发生.
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