Figure 3
From: Clinical implications of high NQO1 expression in breast cancers
Immunohistochemical staining for NQO1 protein expression. (A) NQO1 staining is negative in non-tumor tissue. (B) Weakly positive NQO1 protein signals in breast hyperplasia. (C) Strongly positive NQO1 protein signal in breast cancer cases with metastasis. (D) Weakly positive NQO1 protein signal in invasive ductal breast cancers without metastasis. (E) Strongly positive NQO1 protein in the cancer cells metastatic to blood vessels (arrows). (F) Strongly positive NQO1 protein signal in the metastatic cancer loci in lymph node. Original magnification, A: ×100; B–F: ×200.