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Adherence assay of 51chromium-labeled human polymorphonuclear leukocyte using glass beads

Y Kinoshita1, M E Miller, C J Wuest

  • 1Department of Pediatrics, University of California, Davis 95616.

Journal of Immunological Methods
|November 13, 1989
PubMed

Insights

This study presents a refined assay for measuring polymorphonuclear leukocyte (PMN) adherence in vitro. The new method is reliable, simple, and valuable for clinical and research applications involving PMN function.

Area of Science:

  • Immunology
  • Cell Biology
  • Biomedical Assays

Background:

  • Assessing in vitro adherence capacity of polymorphonuclear leukocytes (PMN) requires reliable and simple methods.
  • Existing methods may lack the necessary simplicity or reliability for widespread clinical and research use.

Purpose of the Study:

  • To develop and validate a modified, reliable, and simple in vitro assay for measuring PMN adherence.
  • To establish an assay applicable to both clinical diagnostics and research settings.

Main Methods:

  • Modification of a previously described method using 51Cr-labeled PMN adherence to glass beads.
  • The assay quantifies PMN adherence in both non-stimulated and stimulated states (using phorbol myristate acetate or endotoxin-activated plasma).
  • Utilizes a small number of PMN (as few as 0.25 x 10^6).

Main Results:

  • A highly significant difference was observed between the adherence of stimulated and non-stimulated PMN.
  • The modified assay demonstrates reliability and simplicity.
  • The assay is effective even with limited PMN quantities.

Conclusions:

  • The developed assay provides a valuable tool for assessing PMN adherence capacity in vitro.
  • This method is suitable for both clinical and research applications.
  • The assay effectively differentiates between stimulated and non-stimulated PMN adherence.

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