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Expression and Clinical Significance of UCH37 in Human Esophageal Squamous Cell Carcinoma

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Abstract

Background

Ubiquitin carboxyl-terminal hydrolase 37 (UCH37), a member of the DUBs, was found to play an important role in oncogenesis through promoting some Proto-oncogenes’ expression and stem cell-like characteristics in the cell in previous research. The aim of this study was to assess the value of UCH37 in predicting tumor recurrence after curative resection in esophageal squamous cell carcinoma (ESCC) patients.

Methods

We analyzed UCH37 protein expression in 111 clinicopathologically characterized ESCC cases, from those who underwent curative resection between 2007 and 2008, by immunohistochemistry. The prognostic significance was assessed using Kaplan–Meier survival estimates and log-rank tests.

Results

We found that UCH37 expression was higher in the cancer tissue than in non-tumorous control tissue at protein level and was overexpressed in tumor tissues of recurrent patients. There was a significant difference of UCH37 expression in patients categorized according to TNM stage (p = 0.038) and lymph nodes metastasis condition (p = 0.009). Univariate analyses revealed that UCH37 was a significant predictor for overall survival and disease-free survival, and multivariate analyses showed that UCH37 was an independent prognostic marker for ESCC recurrence. A prognostic significance of UCH37 was also found in the subgroup of lymph nodes metastasis condition classification. About 90 % of the recurrent patients recurred within 2 years, of which 84.4 % were predicted by UCH37.

Conclusion

UCH37 is associated with outcome and recurrence of ESCC and can be a novel predictor for poor prognosis of ESCC patients after curative resection.

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Acknowledgments

The authors would like to express gratitude to the staff of Prof. Xizhong Shen’s laboratory for their critical discussion and reading of the manuscript and the members of the Department of Thoracic Surgery of Zhongshan Hospital for their tumor specimens and follow-up data. This study was supported by the Shanghai Science and Technology Commission (10410709400, 10411950100), National Nature Science Foundation of China (81000968, 81101540, 81101637 and 81172273) and the National Clinical Key Special Subject of China.

Conflict of interest

The authors declare that there are no conflicts of interest.

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Authors and Affiliations

  1. Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China

    Yanjie Chen, Da Fu, Zongfei Ji, Taotao Liu, Yushui Ma, Yuan Zhao, Ling Dong & Xizhong Shen

  2. Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People’s Republic of China

    Junjie Xi & Qun Wang

Authors
  1. Yanjie Chen
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  2. Da Fu
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  3. Junjie Xi
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  4. Zongfei Ji
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  5. Taotao Liu
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  6. Yushui Ma
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  7. Yuan Zhao
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  8. Ling Dong
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  9. Qun Wang
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  10. Xizhong Shen
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Corresponding authors

Correspondence to Qun Wang or Xizhong Shen.

Additional information

Yanjie Chen and Da Fu contributed equally to this work.

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Chen, Y., Fu, D., Xi, J. et al. Expression and Clinical Significance of UCH37 in Human Esophageal Squamous Cell Carcinoma. Dig Dis Sci 57, 2310–2317 (2012). https://doi.org/10.1007/s10620-012-2181-9

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  • DOI: https://doi.org/10.1007/s10620-012-2181-9

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