Cytotoxicity of PEI-BP-CD (20–22a,b) and PEI-MP-CD
(22a,b) ternary conjugates in different cell lines. HeLa
cells (A), MC3T3 osteoblasts (B), and MG-63 sarcomas (C) were incubated
with 1–30 μM ALN or PEI-BP derivatives for 48 h, and
the cell cytotoxicity (expressed as the percentage of the cell viability
of the untreated cells minus the cell viability of treated cells)
was determined by an MTT assay. Data are shown as mean ± SEM
(n = 5). (D) MG-63 cells were incubated in the absence
or presence of 15 μM PEI-BP or ALN for 30 min. The phosphorylative
status of Akt and ERK1/2 was measured by Western blot. Data are shown
as mean ± SEM (n = 4). *p <
0.05 vs nontreated (C) cells and #p < 0.05 vs ALN-treated cells.