Table 2.

Expression of members of Fcγ receptor family by immune cell subsets in humans and macaques.

Lineage	Role	Cell type	Species	FcγRI	FcγRIIa	FcγRIIb	FcγRIIc	FcγRIIIa	FcγRIIIb
Myeloid	Granulocytes	Neutrophils	H. sapiens	I	+	+/–	+	–	+
			M. fascicularis	ND	◦	◦	–	–	–
		Eosinophils	H. sapiens	ND	+	–	ND	–	+
			M. fascicularis	ND	◦	◦	–	–	–
		Basophils	H. sapiens	–	+	+	ND	–	+
			M. fascicularis	ND	◦	◦	–	–	–
		Mast Cells	H. sapiens	I	+	–	+/–	–	+
			M. fascicularis	ND	◦	◦	–	–	–
	Phagocytes	Monocytes/Macrophages	H. sapiens	I	+	+/–	–	+	–
			M. mulatta	+	◦	◦	–	+	–
		Dendritic Cells	H. sapiens	+	+	+	–	–	–
			M. mulatta	+	◦	◦	–	–	–
		Platelets	H. sapiens	ND	+	–	–	ND	ND
			M. mulatta	ND	ND	ND	–	ND	–
Lymphoid		B Cells	H. sapiens	–	–	+	+	–	–
			M. mulatta	–	◦	◦	–	–	–
		T Cells	H. sapiens	–	–	+/–1	–	+/–2	–
			M. mulatta	–	◦	◦	–	–	–
		Natural Killer Cells	H. sapiens	–	–	–	+	+	–
			M. mulatta	–	◦	◦	–	+	–

^◦Positive for FcγR2 but a/b not determined.

^IInducible by interferon γ.

^NDNot determined.

^+/–Expressed by a low percentage of cells, or by a specific subset.

Subset-specific expression is:

⁽¹⁾FcγRIIb has been observed on human memory CD8⁺ T cells (121).

⁽²⁾FcγRIIIa has been observed on activated human CD4⁺ T cells (122).

References: (72, 117, 119–135).