The function of Fcγ receptors in dendritic cells and macrophages
Martin Guilliams1, Pierre Bruhns2, Yvan Saeys1
11] Laboratory of Immunoregulation, VIB Inflammation Research Center, 9052 Ghent, Belgium. [2] Department of Respiratory Medicine, Ghent University, 9000 Ghent, Belgium.
Abstract:
Dendritic cells (DCs) and macrophages use various receptors to recognize foreign antigens and to receive feedback control from adaptive immune cells. Although it was long believed that all immunoglobulin Fc receptors are universally expressed by phagocytes, recent findings indicate that only monocyte-derived DCs and macrophages express high levels of activating Fc receptors for IgG (FcγRs), whereas conventional and plasmacytoid DCs express the inhibitory FcγR. In this Review, we discuss how the uptake, processing and presentation of antigens by DCs and macrophages is influenced by FcγR recognition of immunoglobulins and immune complexes in the steady state and during inflammation.
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