Fig. 6

Apical to basolateral transport of [¹²⁵I]-angiopep-2. Transport (left) and uptake (right) of [¹²⁵I]-angiopep-2 were measured in the absence and presence of the non-labeled angiopep-2 (cold) over a time course of four hours. The cell uptake was probed after the transport study was terminated. Data are shown as mean ± SEM of three individual passages of triplicates (n = 3, N = 3). **: p < 0.005