Article Text

Download PDFPDF
Expression of DJ-1 in Endometrial Cancer: Close Correlation With Clinicopathological Features and Apoptosis
  1. Kuanyong Shu, MSc*,
  2. Zhongqing Xiao, MSc*,
  3. Shenggen Long, MSc*,
  4. Jinjin Yan, MSc*,
  5. Xiaohong Yu, MSc,
  6. Qizhou Zhu, MSc* and
  7. Tong Mei, MSc*
  1. *Department of Gynecological Oncology, and
  2. Department of Pathology, Jiangxi Maternity and Child Healthcare Hospital, No. 381 Ba-yi Rd, Nanchang City 330006, Jiangxi, PR China.
  1. Address correspondence and reprint requests to Kuanyong Shu, MSc, Department of Gynecological Oncology, Jiangxi Maternity and Child Healthcare Hospital, No. 381 Ba-yi Rd, Nanchang 330006, Jiangxi, PR China. E-mail:


Objectives DJ-1 was originally cloned as a putative oncogene capable of transforming NIH3T3 cells in cooperation with H-Ras or c-Myc, which has been implicated in the pathogenesis of some solid tumors. The aim of this study was to investigate the expression and clinical significance of DJ-1 in endometrial cancer and study its effect on cell proliferation and apoptosis in endometrial cancer Ishikawa cells.

Methods Reverse transcription polymerase chain reaction and Western blotting were performed to determine the DJ-1 expression in 100 surgical specimens of endometrial cancer tissues, paired tumor-adjacent tissues, and 30 surgical specimens of normal endometrium tissues. The proliferation variety of endometrial cancer Ishikawa cells was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium assay after transfecting the interference plasmid pGPU6/GFP/neo-DJ-1-shRNA into Ishikawa cells. Real-time polymerase chain reaction and Western blotting were used to evaluate the effect of interference plasmid on target gene expression. Apoptosis rate was determined by flow cytometry.

Results DJ-1 expression in endometrial cancer tissues was higher than in tumor-adjacent tissues and normal endometrial tissues. At the same time, it was associated with signs of cancer progression, including differentiation, myometrial invasion depth, and presence of lymph node metastasis. Knocking down DJ-1 promoted the apoptosis of Ishikawa cells.

Conclusions High DJ-1 expression seems to be negatively correlated with apoptosis. Meanwhile, it may be part of the mechanisms for the development, invasion, and metastasis in endometrial cancer.

  • Endometrial cancer
  • DJ-1
  • Apoptosis
  • Ishikawa cells

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.


  • Kuanyong Shu and Zhongqing Xiao contributed equally to this work.

  • This study was supported by the Scientific and Technological Initiative of Department of Public Health of Jiangxi Province (No. 20111100).

  • The authors declare no conflicts of interest.