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| 標題: | Clinicopathological significance of HuR expression in gallbladder carcinoma: with special emphasis on the implications of its nuclear and cytoplasmic expression |
| 作者: | Sun, Ding-Ping
Lin, Ching-Yih
Tian, Yu-Feng
Chen, Li-Tzong
Lin, Li-Ching
Lee, Sung-Wei
Hsing, Chung-Hsi
Lee, Hao-Hsien
Shiue, Yow-Ling
Huang, Hsuan-Ying
Li, Chien-Feng
Liang, Peir-In |
| 貢獻者: | 藥學系 |
| 關鍵字: | Hur Protein
Gallbladder Cancer
Immunohistochemistry
Protein Localization |
| 日期: | 2013-10 |
| 上傳時間: | 2014-05-26 10:44:16 (UTC+8) |
| 出版者: | Springer |
| 摘要: | Gallbladder carcinoma (GBC) is a relatively rare disease which pathogenesis is less clarified. Human antigen R (HuR), a RNA-binding protein, modulates the expressions of various cancer-related proteins by stabilizing or regulating the transcription of the corresponding messenger RNA. The significance of HuR expression in a large cohort with GBCs is yet to be evaluated. In total, 164 cases of GBC were selected, and immunostaining for HuR was performed. HuR nuclear (HuR-N) expression and HuR cytoplasmic (HuR-C) expression were evaluated by using a histochemical score. The results of HuR expression were correlated with various clinicopathological factors, disease-specific survival (DSS), and disease-free survival (DFS) in 161 patients with follow-up data. HuR-N overexpression was strongly associated with high histological grade (p = 0.001), vascular invasion (p < 0.001), and high Ki-67 labeling index (p < 0.001). HuR-C overexpression was significantly related to higher primary tumor status (p < 0.001), advanced tumor stage (p < 0.001), histological type (p = 0.006), high histological grade (p < 0.001), vascular and perineurial invasion (p < 0.001 and p = 0.002, respectively), tumor necrosis (p = 0.042), and high Ki-67 labeling index (p = 0.002). Besides, HuR-C overexpression also correlates with HuR-N overexpression (p < 0.001) and cyclin A overexpression (p = 0.026). HuR-N overexpression correlated with poor DFS (p = 0.0348) in univariate analysis, but HuR-C overexpression strongly correlated with a worse DSS and DFS in both univariate (both p < 0.0001) and multivariate (DSS, p = 0.006; DFS, p = 0.001) analyses. Subcellular localization of HuR expression correlates with different adverse phenotypes of GBC. Besides, HuR-C overexpression is an independent prognostic factor for dismal DSS and DFS, suggesting its roles in tumorigenesis or carcinogenesis and as a potential prognostic marker of GBC. |
| 關聯: | Tumor Biology, v.34 n.5 pp.3059-3069 |
| 顯示於類別: | [藥學系(所)] 期刊論文
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