Stephan Fellner, Björn Bauer, David S. Miller, Martina Schaffrik, Martina Fankhänel, Thilo Spruß, Günther Bernhardt, Claudia Graeff, Lothar Färber, Harald Gschaidmeier, Armin Buschauer, Gert Fricker
Increase of intracellular fluorescence intensity (free calcein) in monolayers of porcine brain capillary endothelial cells. Presence of the p-gp substrates valspodar (filled circles) and paclitaxel (filled triangles) results in an increased fluorescence intensity, whereas penicillin (open circles) has no effect (means ± SEM, n = 6).