(A) The effect of protamine:GNPs incubated with luciferase protein,
which were then exposed to A375 cells, and then the cells were rinsed. The
cell-associated luminescence activity was quantified. (B)
Tuberculosis antigen 85B presentation coculture assay positive controls. For
details, see the experimental methods section in [22]. (C) Western blot of B-Raf expression in
A375 cells after anti-B-Raf siRNA treatment with delivery by
Lipofectamine™ (lipo-NH2)-siRNA, GNP–Prot control or
the GNP–Prot–siRNA nanoconjugate. (D) Comparison of
methoxypoly(ethylene glycol)-block-polyamidoamine dendrimer and GNP
nanoconjugate effect on delivery of B-Raf siRNA. Represents the number of A375
tumor ‘spheroids’ formed after treatment of nanoconjugates. Error
bars represent standard deviation values.
Abs.: Absorbance; B-Raf: B-Raf siRNA; Dend: Dendrimer; GNP: Gold nanoparticle;
Luc: Luciferase; Prot: Protamine; RLU: Relative light unit.