Figure 3. Effect of JNK-deficiency on mammary epithelial cell motility and invasion.
A,B) Primary cultures of CreERT (Control) and Jnk1Δ/Δ Jnk2−/− CreERT mammary epithelial cells prepared from tamoxifen-treated mice were examined using Boyden chambers coated with Collagen I (A) or with a Matrigel layer (B). The relative number of cells that moved from the upper chamber to the lower chamber is presented (mean ± SD; n = 5). Significant differences between Control cells and JNK-deficient cells are indicated with an asterisk (*, p < 0.05; **, p < 0.001).