International Journal of Medical Sciences

Impact factor
2.399

13 December 2017

ISSN 1449-1907 News feeds of published articles

My Manuscript | My Account

Journal of Biomedicinenew

Theranostics

Journal of Cancer

Oncomedicine

International Journal of Biological Sciences

Journal of Genomics

Journal of Bone and Joint Infection (JBJI)

Nanotheranostics

PubMed Central Indexed in Journal Impact Factor

Int J Med Sci 2013; 10(12):1689-1697. doi:10.7150/ijms.7292

Research Paper

High-expression of DJ-1 and Loss of PTEN Associated with Tumor Metastasis and Correlated with Poor Prognosis of Gastric Carcinoma

Yin Li1, Ji Cui1, Chang-hua Zhang1, Dong-jie Yang1, Jian-hui Chen1, Wen-hua Zan1, Bin Li2, Zhi Li2, Yu-long He1✉

1. Department of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-sen University, 58, Zhongshan Road II, Guangzhou 510080, China;
2. Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, 58, Zhongshan Road II, Guangzhou 510080, China.

Abstract

Background and aims: DJ-1 and PTEN have been shown to involve in multiple cell processes and play an important role in cancer development and progression. However, their relationship with gastric carcinoma (GC) has not been identified yet. The purpose of this study is to clarify the relationship of DJ-1 and phosphatase and tensin homolog (PTEN) with clinicopathological parameters and prognosis in GC.

Methods: 114 specimens were collected from GC patients and expression of DJ-1 and PTEN in tissue microarray was evaluated by immunohistochemical staining. Correlation between immunostainings and clinicopathological parameters, follow-up data of patients, was analyzed statistically.

Results: High expression of DJ-1 was found in 66.7% (76/114) and associated with tumor depth (P=0.003), lymph node metastasis (P=0.011), distant metastasis (P=0.001) and advanced clinical stage (P=0.001). Loss or downregulation of PTEN was found in 58.7% (67/114) and associated with advanced clinical stage (P=0.018) and high expression of DJ-1 in tumor cells (P=0.006). In univariate survival analysis, high-expression of DJ-1 or loss of PTEN was significantly associated with poor prognosis of GC patients. However, only tumor depth (P=0.011) and coexistence of DJ-1 and PTEN abnormal expression (P=0.009) emerged as strong independent prognostic factors for overall survival of GC patients.

Conclusions: the present study indicates that DJ-1 and PTEN may play their roles in progression of GC in a cooperating pattern. Co-existence of abnormal DJ-1 and PTEN expression is likely to serve as an independent predictive factor for prognosis of GC patients.

Keywords: Gastric carcinoma, DJ-1, PTEN, Metastasis, Prognosis.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
How to cite this article:
Li Y, Cui J, Zhang Ch, Yang Dj, Chen Jh, Zan Wh, Li B, Li Z, He Yl. High-expression of DJ-1 and Loss of PTEN Associated with Tumor Metastasis and Correlated with Poor Prognosis of Gastric Carcinoma. Int J Med Sci 2013; 10(12):1689-1697. doi:10.7150/ijms.7292. Available from http://www.medsci.org/v10p1689.htm