Abstract
Peroxiredoxin 1 (Prdx1) is a member of the peroxiredoxin family of antioxidant enzymes and implicated in cell differentiation, proliferation, and apoptosis. The aim of the present study was to determine the expression and diagnostic and prognostic significance of Prdx1 in human hepatocellular carcinoma (HCC). Prdx1 expression was examined in 76 HCC patients and 20 healthy volunteers. The relationships between Prdx1 expression and clinicopathological features were analyzed. Receiver operating characteristics analysis was used to calculate the diagnostic accuracy of serum Prdx1, serum alpha-fetoprotein (AFP), and their combination. The prognostic impact of Prdx1 on overall survival (OS) and disease-free survival (DFS) of HCC patients was investigated. Prdx1-positive rate was significantly (p < 0.05) higher in HCC (77.1 %) than in adjacent non-tumorous liver tissues (18.4 %). Prdx1 immunoreactivity was positively correlated with tumor vascular endothelial growth factor expression and microvessel density. Prdx1 expression was significantly associated with tumor size, microvascular invasion, Edmondson grade, tumor capsula status, serum AFP, and tumor-node-metastasis stage. The combination of serum Prdx1 and AFP had a markedly higher area under the curve than serum Prdx1 alone. Positive Prdx1 expression was associated with unfavorable OS (p = 0.004) and DFS (p = 0.001). Multivariate analysis revealed intra-tumoral Prdx1 staining as an independent poor prognostic marker for OS (p = 0.006) and DFS (p = 0.002). Taken together, our data suggest that increased Prdx1 expression is associated with tumor angiogenesis and progression in HCC and serves as a promising biomarker for detection and prognosis of this malignancy.
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Abbreviations
- AFP:
-
α-Fetoprotein
- DAB:
-
3,3-Diaminobenzidine tetrahydrochloride
- DFS:
-
Disease-free survival
- ELISA:
-
Enzyme-linked immunosorbent assay
- EMT:
-
Epithelial-mesenchymal transition
- HBeAg:
-
Hepatitis B e antigen
- HCC:
-
Hepatocellular carcinoma
- HE:
-
Hematoxylin and eosin
- MVD:
-
Microvessel density
- OS:
-
Overall survival
- PBS:
-
Phosphate buffered saline
- Prdx1:
-
Peroxiredoxin 1
- ROC:
-
Receiver operating characteristics
- SD:
-
Standard deviation
- TLR4:
-
Toll-like receptor 4
- TNM:
-
Tumor-node-metastasis
- TRAIL:
-
Tumor necrosis factor-related apoptosis-inducing ligand
- VEGF:
-
Vascular endothelial growth factor
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Acknowledgments
This research was supported by the National Natural Science Foundation of China (Nos. 81201906 and 81172364).
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The authors declare no competing financial interests.
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Qi-Kai Sun and Jian-Yu Zhu have contributed equally to this work as co-first authors.
Wei Wang and Wei-Dong Jia have contributed equally to this work as co-correspondence authors.
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Sun, QK., Zhu, JY., Wang, W. et al. Diagnostic and prognostic significance of peroxiredoxin 1 expression in human hepatocellular carcinoma. Med Oncol 31, 786 (2014). https://doi.org/10.1007/s12032-013-0786-2
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DOI: https://doi.org/10.1007/s12032-013-0786-2