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Combined evaluation of the expression of NUCKS and Ki-67 proteins as independent prognostic factors for patients with gastric adenocarcinoma

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Tumor Biology

Abstract

Nuclear ubiquitous casein and cyclin-dependent kinases substrate (NUCKS) has been recently documented in various malignancies. However, data regarding the expression and prognostic value of NUCKS in gastric adenocarcinoma are limited. Specimens from 159 gastric adenocarcinoma patients who underwent primary gastrectomy were collected. Immunohistochemical method was used to evaluate NUCKS and Ki-67 expression. The correlations between NUCKS and clinical significance were analyzed. Elevated NUCKS expression was significantly associated with TNM stage (P = 0.034), depth of invasion (P = 0.001), and expression of Ki-67 (P = 0.035). Kaplan–Meier analysis indicated that NUCKS overexpression alone (P = 0.045 for overall survival) or in combination with Ki-67 (P = 0.007 for disease-free survival, P = 0.002 for overall survival) was correlated with adverse prognosis of the patients. Multivariate analysis revealed that combined NUCKS and Ki-67 overexpression was an independent prognostic factor for both disease-free survival (hazard ratio = 1.623, P = 0.02) and overall survival (hazard ratio = 1.667, P = 0.016) in gastric adenocarcinoma patients. The combination of NUCKS and Ki-67 overexpression in gastric adenocarcinoma further distinguished a subgroup of patients with poor prognosis.

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Acknowledgments

The authors are very grateful to Hongfei Ji for his technical assistance in the IHC. This work is supported by the National Natural Science Foundation of China (No. 81172265) and funds of The Affiliated Tumour Hospital of Harbin Medical University (No. JJZ2011-07).

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Authors and Affiliations

  1. Department of Gastrointestinal Medical Oncology, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, Heilongjiang, China

    Ming Yang, Qi Zhao, Wenhao Chen, Zhiwei Li & Yanqiao Zhang

  2. Department of Emergency, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China

    Xiaoxia Wang

  3. Department of Gynecology, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, Heilongjiang, China

    Tianbo Liu

  4. Department of Pathology, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, Heilongjiang, China

    Guodong Yao

  5. Department of Biotherapy, The Affiliated Tumour Hospital of Harbin Medical University, Harbin, Heilongjiang, China

    Xiaoyi Huang

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  1. Ming Yang
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  2. Xiaoxia Wang
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  3. Qi Zhao
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  9. Yanqiao Zhang
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Correspondence to Yanqiao Zhang.

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Yang, M., Wang, X., Zhao, Q. et al. Combined evaluation of the expression of NUCKS and Ki-67 proteins as independent prognostic factors for patients with gastric adenocarcinoma. Tumor Biol. 35, 7505–7512 (2014). https://doi.org/10.1007/s13277-014-1880-6

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  • DOI: https://doi.org/10.1007/s13277-014-1880-6

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