Figure 1From: Epidermal growth factor (EGF) and interleukin (IL)-1β synergistically promote ERK1/2-mediated invasive breast ductal cancer cell migration and invasionDetection of p-ERK1/2 expression in IBDC and non-neoplastic tissues using immunohistochemistry. P-ERK1/2 was not detected or very weakly expressed in non-neoplastic breast ductal cells (A), but was frequently expressed in both the cytoplasm and nucleus of IBDC cells (B to D). B to D represented different intensities of p-ERK1/2 positive staining in IBDC. Images in the left panel were ×100 magnification; and expanded on the right at ×200.Back to article page