Table 2

Results of immunohistochemical analysis

No. (%) of tumors
ScoreEGFRa (Membranous)Phospho-EGFR (Nuclear)Phospho-EGFR (Membranous)Phospho-EGFR (Cytoplasmic)TGF-α (Cytoplasmic)HER2-neu (Membranous)
027 (24.3)16 (14.4)104 (93.7)58 (52.2)81 (73.0)51 (45.9)
118 (16.2)21 (18.9)1 (0.9)26 (23.4)27 (24.3)41 (36.9)
236 (32.4)40 (36.0)4 (3.6)18 (16.2)1 (0.9)13 (11.7)
330 (27.0)34 (30.6)2 (1.8)9 (8.1)2 (1.8)6 (5.4)
Total111 (100)111 (100)111 (100)111 (100)111 (100)111 (100)
  • a EGFR, epidermal growth factor receptor; phospho-EGFR, phosphorylated epidermal growth factor receptor; TGF, transforming growth factor.