Figure 4. Ultrasound treatment followed by topical application of siMutB-Raf-nanoliposomal complex inhibits melanocytic lesion development in reconstructed skin.
A. Schematic showing treatment regime. Beginning on d 10 and on alternate days thereafter up to d 20, reconstructed skin was treated with ultrasound for 20 m followed by topical administration of siMutB-Raf-nanoliposomal complex (100 pmoles) or ghost nanoliposomes. B., C. Ultrasound followed by addition of siMutB-Raf-nanoliposomal complex decreases melanocytic lesion development in skin. Reconstructed skin containing UACC 903-GFP or WM35-GFP cells were treated with ultrasound for 20 m followed by topical administration of siMutB-Raf-nanoliposomal complex on alternated days from d 10–20. Skin was harvested on d 21, and average area occupied by GFP-tagged tumors calculated for each group. Ultrasound treatments followed by exposure to ghost nanoliposomes served as a control. Results are mean±SE.