Figure 2.

Translocation of fluorescein-labeled MTS fusion peptides (Fluo-DT-2 and Fluo-DT-3) in smooth muscle cells from cerebral arteries. The arteries were isolated from rat and incubated for 30 min with Fluo-DT-2 (A), Fluo-DT-3 (B), or Fluo-W45 (C). Confocal images (100×) of tissue samples were taken after washing arteries with physiological salt solution. Fluorescein excitation was imaged at 488 nm. Images show the smooth muscle layer of the arteries (optical thickness = 1.5 μm).