Prognostic significance of nm23-H1 expression in esophageal squamous cell carcinoma

Liang Shun Wang, Kuan Chih Chow, Yung Chang Lien, Kuang Tai Kuo, Wing Yin Li

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Objectives: Tumor recurrence and metastasis are major causes of treatment failure in esophageal squamous cell carcinoma (ESCC). Recently, nm23, originally considered to be an anti-metastatic gene, has been reported to associate with various roles in different human cancers. We therefore investigated the clinical significance of nm23-H1 expression in ESCC. Methods: Pathological sections were immunohistochemically stained with monoclonal antibody that was specific to nm23-H1. Expression of positive nm23-H1 staining was further confirmed by Western blot and reverse transcription-polymerase chain reaction (RT-PCR). The relationship between nm23-H1 expression and clinicopathological variables was examined by statistical analysis. Except for 11 (7%) surgical morality, the remaining 145 patients entered the prognostic analysis. The cisplatin-based chemotherapy was established for the patients with tumor stages at or beyond IIb, or with tumor recurrence. Survival difference between groups was compared by log rank test. Results: Immunohistochemically, nm23-H1 expression was detected in 39.3% (57/145) of the pathological sections. It was positively correlated with tumor stage (P=0.002), evident lymphovascular invasion (P<0.001) and tumor recurrence (P=0.02). Survival of nm23-H1 positive group was statistically superior to nm23-H1 negative group (P<0.0001). By multivariate survival analysis, tumor stage, the number of lymph node metastasis and expression of nm23-H1 were the independent prognostic factors for ESCC patients. Conclusions: Our study demonstrated that nm23-H1 expression was associated with disease progression in ESCC. However, survival of nm23-H1 positive group was superior to nm23-H1 negative group. This paradoxical result could suppose that nm23-H1 expression might increase cisplatin chemosensitivity and hence improve survival. Screening for nm23-H1 expression in tumor cells may be a potential therapeutic strategy in ESCC patients.

Original languageEnglish
Pages (from-to)419-424
Number of pages6
JournalEuropean Journal of Cardio-thoracic Surgery
Issue number2
Publication statusPublished - Aug 2004
Externally publishedYes


  • Chemosensitivity
  • Esophageal carcinoma
  • nm23

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine


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