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[Decrease of CD16 antigen density on granulocytes in chronic myeloid leukemia]

O Kabutomori1, T Koh, Y Iwatani

  • 1Central Laboratory for Clinical Investigation, Osaka University Hospital.

Rinsho Byori. the Japanese Journal of Clinical Pathology
|September 1, 1992
PubMed

Insights

The density of CD16 antigen on granulocytes is lower in chronic myeloid leukemia (CML) patients. This finding aids in differentiating CML from inflammatory neutrophilia using flow cytometry analysis.

Area of Science:

  • Immunology
  • Hematology
  • Flow Cytometry

Context:

  • Neutrophilia can arise from both chronic myeloid leukemia (CML) and inflammatory conditions, necessitating accurate diagnostic methods.
  • CD16 antigen expression on granulocytes is a potential biomarker for distinguishing between these conditions.

Purpose:

  • To investigate the differences in CD16 antigen fluorescence intensity (density) on granulocytes among healthy subjects, patients with inflammatory neutrophilia, and patients with CML.
  • To assess the utility of granulocyte CD16 antigen density analysis in the differential diagnosis of CML.

Summary:

  • Flow cytometry was used to measure CD16 antigen fluorescence intensity on granulocytes in 15 healthy subjects, 15 patients with inflammatory neutrophilia, and 10 CML patients.
  • Significantly lower CD16 antigen fluorescence intensity was observed in CML patients compared to both healthy subjects and patients with inflammatory neutrophilia.

Impact:

  • The study demonstrates that decreased CD16 antigen density on granulocytes is characteristic of CML.
  • Analysis of granulocyte CD16 antigen density offers a valuable tool for the differential diagnosis of CML, distinguishing it from inflammatory diseases presenting with neutrophilia.

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