Fig. 1.

RON and MET expression in primary triple-negative breast cancer (TNBC) samples. Semiquantitative immunohistochemical staining was performed on 187 primary TNBC samples. Representative images showing negative staining and different levels of RON immunoreactivity are shown. A combined score of 2-4 was deemed weakly positive, while a combined score ≥ 5.0 was considered high expression or overexpression. (A) TNBC samples using mouse anti-RON mAb Zt/f2 for RON staining. (B) TNBC samples using rabbit anti-MET mAb for MET staining.