Table 1.

Analysis of 56 basal-like and triple-negative breast cancer tumor samples

Proteins analyzed	IHC score, n				Overexpressed, n (%)
	3+	2+	1+	0
SHP2	22	17	11	6	39 (70 %)
EGFR	13	20	9	5	33 (59 %)

EGFR epidermal growth factor receptor, IHC immunohistochemistry, SHP2 Src homology phosphotyrosyl phosphatase 2

A total of 56 basal-like and triple-negative breast cancer tumor samples were analyzed for SHP2 and EGFR by immunohistochemistry as described in Materials and methods. Samples that showed 3+ and 2+ expression levels were considered as positive for elevated expression of SHP2 and EGFR