期刊
TUMOR BIOLOGY
卷 36, 期 2, 页码 675-683出版社
SAGE PUBLICATIONS LTD
DOI: 10.1007/s13277-014-2650-1
关键词
Nasopharyngeal carcinoma (NPC); LTF; Prognosis
类别
资金
- China Scholarship Council (CSC)
- National Natural Science Foundation of China [30871282, 81071644, 81172189, 81272298, 81372907, 81472531, 91229122]
- Hunan Province Natural Science Foundation of China [14JJ1010, 12JJ2044]
- Hunan Province Science and the Technology Foundation of China [2012FJ6073]
Lactotransferrin (LTF), also known as lactoferrin, is a key component of innate immune defense. We previously reported that LTF was downregulated in nasopharyngeal carcinoma (NPC) and could suppress NPC cell proliferation. However, the relevance of the relationship between LTF expression and NPC clinical outcome has not been reported. This study aims to assess the possible correlations between LTF expression and clinical parameters and its potential prognostic predictive ability in the outcomes of patients with NPC. Complementary DNA (cDNA) microarray, quantitative real-time PCR (qRT-PCR), and immunohistochemistry (IHC) results suggested that LTF expression was significantly downregulated in NPC tissues compared to non-NPC tissues. LTF was negatively correlated with lymph node metastasis (P = 0.042), T stage (P < 0.001), clinical tumor-node-metastasis (TNM) stage (P = 0.022), and EBV-encoded RNA 1 (EBER-1) expression (r = -.167, P = 0.016). A survival analysis of 108 patients with NPC revealed that positive expression of LTF could predict a good prognosis [disease-free survival (DFS): P = 0.043, overall survival (OS): P = 0.040]. Multivariable analysis revealed that LTF could independently predict prognosis (DFS: HR = 0.414, P = 0.003; OS: HR = 0.309, P = 0.005). These observations indicated that LTF is a potential prognostic factor of NPC.
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