Fig. 5From: Adenosine receptor signaling: a key to opening the blood–brain doorExpression of adenosine receptors (ARs) and adenosine-generating enzymes on brain endothelial cells. a A1 and A2A ARs expression green on primary human brain endothelial cells by immunofluorescence assay (IFA). Cells were counterstained with F-actin (red). b Relative mRNA expression level of ARs, CD39 and CD73 by quantitative PCR (q-PCR) in mouse primary brain endothelial cells. Scale bar is 50 μmBack to article page