Serum nm23-H1 protein as a prognostic factor in aggressive non-Hodgkin lymphoma

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Abstract
Advances in chemotherapy have led to a favorable long-term prognosis in approximately 50% of patients with aggressive non-Hodgkin lymphoma (NHL). However, the remaining patients do not enjoy such prolonged survival after standard treatment. New prognostic factors are needed to define this poor-prognosis group and to plan an appropriate treatment strategy. It has been reported that serum nm23-H1 protein may be a new prognostic factor for aggressive NHL. In the present study involving multiple institutions and a large number of patients, the level of nm23-H1 protein was compared among different types of lymphoma; it was lowest for indolent lymphoma, followed by aggressive lymphoma and then highly aggressive lymphoma. In addition, patients with aggressive NHL and higher nm23-H1 levels had worse overall and progression-free survival rates than those with lower nm23-H1 levels. The nm23-H1 level was also compared between patients with diffuse large B-cell lymphoma and patients with peripheral T-cell lymphoma. The results suggest that the level of nm23-H1 could serve as a prognostic factor in both groups. Moreover, the prognosis of lymphoma patients could be ascertained even more precisely by combining soluble interleukin-2 receptor or soluble CD44 and nm23-H1 levels. A multivariate analysis confirmed that the nm23-H1 level is an independent and important prognostic factor in aggressive NHL. Therefore, it may provide useful information for clinicians to determine the appropriate therapy for each type of lymphoma.

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