Table 1.

Expression pattern of type I and type II Fc receptors on human immune cell populations (*induced upon cell activation, ^‡ monocyte subpopulations not distinguished, n.d., not determined).

		B cells	T cells	Classical monocytes	Non − classical monocytes	NK cells	Neutrophils	Eosinophils	Basophils	Mast cells	Macrophages	Conventional DCs	Plasmacytoid DCs
Type I	FcγRIa	–	–	+	–	–	+*	+*	–	+*	+	+	–
	FcγRIIa	–	–	+	+	–	+	+	+	+	+	+	+
	FcγRIIb	+	–	+	+	–	+	–	+	+	+	+	+
	FcγRIIIa	–	–	–	+	+	–	–	–	+	+	–	–
	FcγRIIIb	–	–	–	–	–	+	–	–	–	–	–	–
Type II	Dectin-1	+	+	+	+	–	+	+	n.d.	+	+	+	+
	DC-SIGN	–	–	–	–	n.d.	–	–	–	n.d.	+	+/–	–
	FcεRII	+	+*	+‡	+‡	n.d.	+*	+*	n.d.	n.d.	+*	n.d.	n.d.