Journal
LEUKEMIA
Volume 17, Issue 1, Pages 196-202Publisher
SPRINGERNATURE
DOI: 10.1038/sj.leu.2402699
Keywords
nm23-H1 proteins; cell surface; non-Hodgkin's lymphoma; prognostic factor
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The nm23 gene was isolated as a metastasis suppressor gene that exhibits low expression in high-level metastatic cancer cells. Its gene is related to the prognosis of acute myelogenous leukemia (AML) and non-Hodgkin's lymphoma (NHL). In this study, we examined the expression of nm23-H1 protein on the lymphoma cell surface of NHL. In 28 of 108 cases (25.9%), we observed greater than or equal to20% of cell surface nm23-H1 protein expression and expression was especially high in peripheral T cell lymphomas and extranodal NK/T cell lymphomas. We also observed a significant correlation between serum nm23-H1 level and cell surface nm23-H1 expression levels. In patients with high levels of cell surface nm23-H1 expression, overall and progression-free survival rates were significantly lower than those in patients with low surface nm23-H1 expression levels. When surface nm23-H1 and serum nm23-H1 were combined, patients with high levels of both exhibited a poorer prognosis than patients with a high level of one or the other. These results indicate that in addition to serum nm23-H1, cell surface nm23-H1 may be used as a prognostic factor in planning a treatment strategy. The nm23-H1 protein appears to be intimately related to biological aggressiveness of lymphoma and, therefore, might be a molecular target of NHL treatment.
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