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Human U Three Protein 14a Expression is Increased in Hepatocellular Carcinoma and Associated with Poor Prognosis
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Human U Three Protein 14a Expression is Increased in Hepatocellular Carcinoma and Associated with Poor Prognosis
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Journal Article
Human U Three Protein 14a Expression is Increased in Hepatocellular Carcinoma and Associated with Poor Prognosis
2017
Overview
Background： Human U three protein 14a （hUTP 14a） promotes p53 degradation. Moreover, hUTP 14a expression is upregulated in several types of tumors. However, the expression pattern of hUTP 14a in hepatocellular carcinoma （HCC） remains unknown. The aim of this study was to investigate hUTP 14a expression and its prognostic value in HCC. Methods： The hUTP 14a expression was evaluated using immunohistochemistry （IHC） in HCC tissue specimens. The correlations between hUTP 14a expression and clinicopathological variables were analyzed. The Kaplan-Meier method was used to analyze the association between hUTP14a expression and survival. Independent prognostic factors associated with overall survival （OS） and disease-free survival （DFS） were analyzed using the Cox proportional-hazards regression model. Results： The IHC data revealed that the hUTP 14a positivity rate in HCC tissue specimens was significantly higher than that in nontumorous tissue specimens （89.9% vs. 72.7%, P 〈 0,05）. The hUTP14a expression was detected in both the nucleolus and the cytoplasm. The positivity rate of nucleolar hUTP14a expression in HCC tissue specimens was higher than that in the nontumorous tissue specimens （29.3% vs. 10.1%, P 〈 0.05）. No significant difference was found between HCC and nontumorous tissue specimens of cytoplasmic hUTP 14a expression （60.6% vs. 62.6%, P 〉 0.05）. In addition, no significant correlation was found between nucleolar hUTP 14a expression and other clinicopathological variables. The 5-year OS and DFS rates in patients with positive nucleolar hUTP14a expression were significantly lower than those in patients with negative hUTP 14a expression （P = 0.004 for OS, P = 0.003 for DFS）. Multivariate analysis showed that nucleolar hUTP 14a expression was an independent prognostic factor for OS （P = 0.004） and DFS （P 〈 0.001 ）. Conclusions： The positivity rate of hUTP 14a expression was significantly higher in HCC specimens. Positive expression of nucleolar hUTP 14a might act as a novel prognostic predictor for patients with HCC.
Publisher
Wolters Kluwer India Pvt. Ltd,Medknow Publications and Media Pvt. Ltd,Lippincott Williams & Wilkins Ovid Technologies,Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education), Hepatopancreatobiliary Surgery Department Ⅰ, Peking University Cancer Hospital and Institute, Beijing 100142, China,Medknow Publications & Media Pvt Ltd,Wolters Kluwer
Subject
/ Aged
/ Antigens
/ Biomarkers, Tumor - genetics
/ Biomarkers, Tumor - metabolism
/ Carcinoma, Hepatocellular - metabolism
/ Carcinoma, Hepatocellular - mortality
/ Carcinoma, Hepatocellular - pathology
/ Female
/ Hepatocellular Carcinoma; Human U Three Protein 14a; Poor Prognosis
/ Humans
/ Liver Neoplasms - metabolism
/ Male
/ Original
/ Patients
/ Proteins
/ Ribonucleoproteins, Small Nucleolar - genetics
/ Ribonucleoproteins, Small Nucleolar - metabolism
/ Software
/ Surgery
/ Tumors
