Live Imaging and Quantitation of Lipid Droplets and Mitochondrial Membrane Potential Changes with Aggregation-Induced Emission Luminogens in an in Vitro Model of Liver Steatosis

Yabin Zhou, Jin Hua, Greg Barritt, Yong Liu, Ben Zhong Tang, Youhong Tang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

High specificity, low background, good biocompatibility and photostability are common properties of aggregation-induced emission luminogens (AIEgens). In this study, an AIEgen FAS was used in live HepG2 cells, an in vitro model of liver steatosis, to quantify lipid droplet number and size instead of the traditional method of only measuring fluorescence intensity emitted from fluorescence dye stained in lipid droplet. In parallel, another AIEgen, TPE-Ph-In, was used to perform continuous monitoring and quantitation of mitochondrial membrane potential in the same batch of live HepG2 cells. The data show a significant increase in lipid droplet numbers after 24 h treatment by amiodarone and a significant increase in both lipid droplet numbers and size after 48 h amiodarone treatment. Moreover, the data suggest a significant increase in mitochondria membrane potential in cells treated with amiodarone for 24 and 48 h, with restoration to pre-treatment level 24 h after removal of the amiodarone. Further investigation is needed to fully understand the underlying mechanism.

Original languageEnglish
Pages (from-to)1256-1259
Number of pages4
JournalChembiochem
Volume20
Issue number10
DOIs
Publication statusPublished - 15 May 2019

Keywords

  • aggregation-induced emission luminogens
  • biosensors
  • lipids
  • luminescence
  • steatosis

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