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Nm23/nucleoside diphosphate kinase in human cancers.
1Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA. hartso@box-h.nih.gov
Journal of Bioenergetics and Biomembranes
|January 5, 2002
Summary
Nm23/NDP kinase acts as a metastasis suppressor. Low expression correlates with poor prognosis, but introducing Nm23/NDP kinase reduces cancer cell metastasis and invasion, without affecting proliferation.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Tumor metastasis is a primary cause of cancer-related mortality.
- Low Nm23/NDP kinase expression is linked to poor prognosis and increased metastasis in certain cancers.
- The role of Nm23/NDP kinase in metastasis varies across different cancer types.
Purpose of the Study:
- To investigate the role of Nm23/NDP kinase as a potential metastasis suppressor.
- To determine the effect of Nm23/NDP kinase expression on cancer cell metastatic potential.
Main Methods:
- Analysis of Nm23/NDP kinase expression in tumor cohorts.
- Transfection of Nm23/NDP kinase cDNA into metastatic cancer cell lines.
- In vivo and in vitro assessment of cell motility, invasion, colonization, proliferation, and tumorigenicity.
Main Results:
- Low Nm23/NDP kinase expression correlates with poor patient prognosis and indicators of high metastatic potential in specific cancers.
- Restoring Nm23/NDP kinase expression significantly reduced metastatic competency in vivo.
- In vitro studies showed inhibition of cell motility, invasion, and colonization, but not proliferation or tumorigenicity.
Conclusions:
- Nm23/NDP kinase functions as a metastasis suppressor.
- Modulating Nm23/NDP kinase levels may offer therapeutic strategies for reducing cancer metastasis.