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Updated: Jun 5, 2026

Use of a Monocyte Monolayer Assay to Evaluate Fcγ Receptor-mediated Phagocytosis
Published on: January 2, 2017
Human platelet FcγRIIA and phagocytes in immune-complex clearance
Zhen-Yu Huang1, Paul Chien, Zena K Indik
1Division of Hematology/Oncology, University of Pennsylvania, School of Medicine, Philadelphia, PA 19104, United States. zyh@mail.med.upenn.edu
Abstract:
In addition to their primary role in hemostasis and wound healing, platelets play important roles in a multitude of physiological functions including immune and inflammatory responses. We present data that platelets, by virtue of their expression of the human specific FcγR, FcγRIIA, bind IgG complexes in vivo and that circulating phagocytes from healthy individuals internalize platelets in vivo. Human platelets, as a consequence of their expression of FcγRIIA, may thus, contribute to the clearance of IgG-containing complexes from the circulation.
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