Visualization of Lysosomal Dynamics during Autophagy by Fluorescent Probe

Anal Chem. 2023 Oct 24;95(42):15795-15802. doi: 10.1021/acs.analchem.3c03329. Epub 2023 Oct 10.

Abstract

Lysosomes are one of the important organelles within cells, and their dynamic movement processes are associated with many biological events. Therefore, real-time monitoring of lysosomal dynamics processes has far-reaching implications. A lysosome-targeted fluorescent probe N(CH2)3-BD-PZ is proposed for real-time monitoring of lysosomal kinetic motility. Using this probe, the dynamic process of lysosomes under starvation induction was successfully explored through fluorescence imaging. Importantly, we observed a new pattern of lysosomal dynamic movement, in which an irregular lysosome was slowly cleaved into two different-sized touching lysosomes and then fused to form a new round lysosome. This research provides a powerful fluorescence tool to understand the dynamic motility of intracellular lysosomes under fluorescence imaging.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Autophagy
  • Fluorescent Dyes*
  • HeLa Cells
  • Humans
  • Lysosomes*
  • Optical Imaging

Substances

  • Fluorescent Dyes