Figure 5

Integrin β4 neoexpression induces Rac1 activation. Akt phosphorylation and Rac1 activation is shown in (A) wild-type and (B) integrin β4-expressing fibroblasts. Wild-type and integrin β4-expressing fibroblasts were incubated in RSM, MCF7 CM, or MDA-MB-231 CM under anoikis conditions for 24 hours. Suspended fibroblasts were harvested for Rac1 pull-down assays.