Table 1.

Expression of the P2X7 receptor in the retinal pigment epithelium (RPE).

Cells	mRNA	Protein	Species	Reference
ARPE-19 cell line	n.d. *	+	Human	[10]
	+	n.d.	Human	[11,12]
Primary cultured RPE	+	+	Human	[11,13]
Freshly isolated RPE	+	n.d.	Human	[11,13]
Freshly isolated RPE	+	n.d.	Mouse	[12]
RPE in situ	n.d.	+	Mouse	[12,26]
	n.d.	-	Monkey	[18]

* n.d., not determined; +, expressed; -, not expressed.