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Flow Cytometry01:23

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MitoSOX-Based Flow Cytometry for Detecting Mitochondrial ROS.

Megan E Kauffman1, Melinda K Kauffman2, Kassim Traore1

  • 1Campbell University Jerry M. Wallace School of Osteopathic Medicine, Buies Creek, NC 27506, USA.

Reactive Oxygen Species (Apex, N.C.)
|May 4, 2018
PubMed
Summary
This summary is machine-generated.

This study found that 1 μM MitoSOX is optimal for detecting mitochondrial reactive oxygen species (ROS) using flow cytometry, outperforming the commonly used 5 μM concentration in melanoma cells.

Keywords:
B16-F10 melanoma cellsChemiluminometryFlow cytometryMitoSOXMitochondrial DNA-deficient cellsMitochondrial ROS

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Area of Science:

  • Cell Biology
  • Biochemistry
  • Mitochondrial Research

Background:

  • Mitochondrial reactive oxygen species (ROS) are crucial signaling molecules.
  • MitoSOX is a common fluorescent probe for detecting mitochondrial superoxide.
  • Standard protocols often use 5 μM MitoSOX, but optimal concentrations may vary.

Purpose of the Study:

  • To determine the optimal concentration of MitoSOX for detecting mitochondrial ROS.
  • To compare MitoSOX flow cytometry with lucigenin-derived chemiluminometry.
  • To investigate mitochondrial ROS in control versus mitochondrial DNA-deficient melanoma cells.

Main Methods:

  • Flow cytometry was used to analyze mitochondrial ROS.
  • Various MitoSOX concentrations (1, 2.5, 5 μM) were tested.
  • MitoSOX assay results were compared with lucigenin chemiluminometry.

Main Results:

  • 1 μM MitoSOX was identified as the optimal concentration for flow cytometric detection of mitochondrial ROS.
  • This concentration provided reliable detection of relative differences in ROS.
  • Results showed differences in mitochondrial ROS between control and MD cells.

Conclusions:

  • The optimal MitoSOX concentration for flow cytometry is 1 μM, not 5 μM.
  • This finding refines protocols for measuring mitochondrial ROS.
  • Accurate ROS measurement is vital for understanding mitochondrial function and disease.