Expression of nm23 H-1 RNA levels in human gastric cancer tissues. A negative correlation with nodal metastasis

Cancer. 1994 Jan 15;73(2):259-65. doi: 10.1002/1097-0142(19940115)73:2<259::aid-cncr2820730205>;2-v.


Background: Gene expression of nm23 has been investigated in number of tumors, including breast cancer, colon cancer, malignant melanoma, and hepatocellular carcinoma. Its down-regulation has been shown to be associated with metastasis or disease progression in some of the tumors.

Methods: nm23 H-1 mRNA levels were investigated in 31 surgically resected specimens of gastric cancer by Northern blot analysis, and association with clinical stages was determined.

Results: There was no significant difference in nm23 expression between tumor and matching normal mucosa. There was a significant down-regulation of the nm23 gene in gastric cancer with serosal invasion (T3 and T4 by the TNM classification) and nodal metastasis (pN1 and pN2), although the association of the down-regulation with clinically manifest hepatic or peritoneal metastasis was not significant. The tumors with low nm23 expression were associated with a poor prognosis.

Conclusions: It was suggested that the down-regulation of nm23 gene might have a role in metastasis and invasion in gastric cancer, possibly leading to a poor prognosis.

MeSH terms

  • Cell Line
  • Down-Regulation
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Liver Neoplasms / secondary
  • Lymphatic Metastasis*
  • Monomeric GTP-Binding Proteins*
  • NM23 Nucleoside Diphosphate Kinases
  • Nucleoside-Diphosphate Kinase / genetics*
  • Prognosis
  • RNA, Messenger / analysis*
  • Stomach Neoplasms / genetics*
  • Stomach Neoplasms / mortality
  • Stomach Neoplasms / pathology
  • Transcription Factors / genetics*


  • NM23 Nucleoside Diphosphate Kinases
  • RNA, Messenger
  • Transcription Factors
  • NME1 protein, human
  • Nucleoside-Diphosphate Kinase
  • Monomeric GTP-Binding Proteins