Mitochondrial Membrane Potential Assay

Methods Mol Biol. 2022:2474:11-19. doi: 10.1007/978-1-0716-2213-1_2.

Abstract

Mitochondrial function, a key indicator of cell health, can be assessed through monitoring changes in mitochondrial membrane potential (MMP). Cationic fluorescent dyes are commonly used tools to assess MMP. We used a water-soluble mitochondrial membrane potential indicator (m-MPI) to detect changes in MMP in various types of cells, such as HepG2, HepaRG, and AC16 cells. A homogenous cell-based MMP assay has been optimized and performed in a 1536-well plate format, which can be used to screen several compound libraries for mitochondrial toxicity by evaluating the effects of chemical compounds on MMP.

Keywords: 1536-well plate; Mesoxalonitrile 4-trifluoromethoxyphenylhydrazone (FCCP); Mitochondrial membrane potential (MMP); Mitochondrial membrane potential indicator (m-MPI); Mitochondrial toxicity.

Publication types

  • Research Support, N.I.H., Intramural

MeSH terms

  • Biological Assay*
  • Fluorescent Dyes / metabolism
  • Membrane Potential, Mitochondrial
  • Mitochondria* / metabolism

Substances

  • Fluorescent Dyes