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Related Experiment Videos

The flow cytometric analysis of cytokines using multi-analyte fluorescence microarray technology.

Harry R Hill1, Thomas B Martins

  • 1ARUP Institute for Clinical and Experimental Pathology, Department of Pathology, Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City, USA. hillhr@aruplab.com

Methods (San Diego, Calif.)
|March 17, 2006
PubMed
Summary

New particle-based flow cytometry assays enable analysis of multiple cytokines, crucial for understanding immune system disorders. Researchers developed methods to detect and overcome interference from heterophile antibodies, ensuring accurate results.

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Area of Science:

  • Immunology
  • Biochemistry

Background:

  • Cytokines are immune system hormones with diverse, often overlapping effects.
  • Assessing cytokine patterns is vital for diagnosing inflammatory, autoimmune, transplant, and immunodeficiency conditions.

Purpose of the Study:

  • To describe the development and validation of multi-analyte cytokine assays using particle-based flow cytometry.
  • To document interference from heterophile antibodies in these assays.
  • To present methods for detecting and circumventing heterophile antibody interference.

Main Methods:

  • Analysis of up to 10 cytokines in stimulated mononuclear cell supernatants and patient serum.
  • Utilized particle-based flow cytometry for multi-analyte detection.
  • Developed internal controls and specific methods to address antibody interference.

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Main Results:

  • Successfully developed and validated multi-analyte cytokine assays.
  • Identified significant interference from heterophile antibodies, causing false positive and false negative results.
  • Established reliable internal controls and methods to mitigate interference.

Conclusions:

  • Particle-based flow cytometry offers a powerful tool for cytokine pattern analysis in various disorders.
  • Heterophile antibodies pose a significant challenge to assay accuracy.
  • Internal controls and specific mitigation strategies are essential for reliable cytokine measurement.