To clarify association between FLI1/TIE1 expression and their roles in the prediction of clinical prognosis, we used IHC staining assays to detect the expression of FLI1 and TIE1 in 137 NPC patients using tissue microarrays (Fig. 7A and Fig. 2B). This evidence concerns the gene TIE1 and nasopharyngeal carcinoma.