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Related Experiment Videos

Analysis of mitochondrial function using phosphorescent oxygen-sensitive probes.

Yvonne Will1, James Hynes, Vladimir I Ogurtsov

  • 1Pfizer Drug Safety Research & Development, San Diego, USA.

Nature Protocols
|April 5, 2007
PubMed
Summary
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This study introduces a new, high-throughput method for measuring mitochondrial oxygen consumption, crucial for identifying drug toxicity and disease markers. This fluorescence-based assay enables rapid screening of numerous compounds, advancing mitochondrial research.

Area of Science:

  • Biochemistry and Molecular Biology
  • Pharmacology and Toxicology
  • Cellular Respiration Assays

Background:

  • Mitochondrial dysfunction is linked to numerous diseases and drug side effects.
  • Traditional oxygen consumption assays are limited in throughput and scalability.
  • Accurate assessment of mitochondrial function is critical for drug development and disease research.

Purpose of the Study:

  • To develop a high-throughput, fluorescence-based assay for measuring mitochondrial oxygen consumption.
  • To enable rapid screening of compounds for mitochondrial toxicity, including uncoupling and inhibition.
  • To provide a scalable and adaptable methodology for broader biochemical and cellular screening applications.

Main Methods:

  • Isolation of mitochondria from animal tissues.

Related Experiment Videos

  • Utilized a phosphorescent oxygen-sensitive probe and microtitre plates for fluorescence-based detection.
  • Established and optimized oxygen consumption assays for compound screening and dose-response curve generation.

    • Main Results:

    • Demonstrated a high-throughput methodology capable of analyzing dozens of compounds or hundreds of assay points daily.
    • Successfully screened compounds for mitochondrial toxicity, identifying uncoupling and inhibitory effects.
    • Generated dose-response curves for accurate toxicity assessment.

    Conclusions:

    • The developed fluorescence-based assay offers a significant advancement in measuring mitochondrial oxygen consumption.
    • This method provides a scalable, efficient, and adaptable platform for high-throughput screening in drug discovery and toxicology.
    • The assay facilitates the identification of mitochondrial dysfunction markers relevant to disease states and therapeutic interventions.