Figure 1.

Immunohistochemical staining of NRP-1 protein in tumor cells of nasopharyngeal carcinoma (NPC, A) and non-cancerous nasopharyngeal tissues (B; Original magnification × 400). Intense staining of NRP-1 is seen in the cell membrane and/or cytoplasm of tumors cells and is intensive in NPC tissues (A). In contrast, negative immunostainings of NRP-1 (B) was observed in non-cancerous nasopharyngeal tissues.

Xu et al. Diagnostic Pathology 2013 8:155   doi:10.1186/1746-1596-8-155
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