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Measuring circulating cytokines

J G Cannon1, J L Nerad, D D Poutsiaka

  • 1Department of Medicine, New England Medical Center, Tufts University School of Medicine, Boston, Massachusetts.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|October 1, 1993
PubMed
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Cytokine·1996

Regulatory proteins called cytokines influence bodily processes. Accurately measuring these immune system signaling molecules in biological fluids requires careful consideration of assay limitations and the balance between cytokines and their antagonists.

Area of Science:

  • Immunology
  • Biochemistry
  • Physiology

Background:

  • Cytokines are regulatory proteins with significant physiological roles.
  • Immune system cells are primary sources of cytokines.
  • Cytokines are increasingly recognized for their broad biological influences.

Purpose of the Study:

  • To outline the unique characteristics of cytokines.
  • To discuss challenges in measuring cytokines in biological fluids.
  • To emphasize the importance of assay selection for cytokine measurement.

Main Methods:

  • Review of cytokine characteristics.
  • Analysis of common cytokine measurement assays.
  • Discussion of factors affecting cytokine measurement in vitro and in vivo.

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Main Results:

  • Each cytokine assay presents unique advantages and disadvantages.
  • Methodological factors significantly impact cytokine measurement accuracy.
  • In vivo cytokine activity is influenced by measurement factors.

Conclusions:

  • Investigators must select cytokine assays based on specific research needs and trade-offs.
  • Understanding measurement pitfalls is crucial for reliable cytokine data.
  • The balance between cytokines and antagonists may be more physiologically relevant than absolute concentrations.