Peripheral Blood Lymphocyte/Monocyte Ratio Predicts Outcome in Follicular Lymphoma and in Diffuse Large B-Cell Lymphoma Patients in the Rituximab Era
Peripheral Blood Lymphocyte/Monocyte Ratio Predicts Outcome in Follicular Lymphoma and in Diffuse Large B-Cell Lymphoma Patients in the Rituximab Era
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DOI:
10.1016/j.clml.2014.10.001
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发表时间:
2015-04-01
影响因子:
2.7
通讯作者:
Pioltelli, Pietro Enrico
中科院分区:
文献类型:
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作者:
Belotti, Angelo;Doni, Elisa;Pioltelli, Pietro Enrico
The role of lymphocyte/monocyte ratio (LMR) in diffuse large B-cell lymphoma (DLBCL) is under investigation; its role in follicular lymphoma (FL) is unknown. We found a prognostic effect of LMR in FL and in DLBCL.Background: Diffuse large B-cell lymphoma is an aggressive lymphoma and a large number of studies have therefore focused on the search for prognostic factors. The same interest concerns FL, for which identification of patients candidates for watch and wait (W&W) strategy is still an option. Studies about the number and type of lymphocytes and monocytes detectable in patients with Hodgkin and non-Hodgkin lymphomas indicate they might affect the pathogenesis and prognosis of these diseases. LMR is recently under investigation as a new prognostic parameter in DLBCL; the role of this ratio in FL in the rituximab era is unknown. Patients and Methods: We retrospectively analyzed 137 DLBCL and 132 FL patients referred to our institution; among FL pts, a W&W approach was performed at diagnosis for 42 patients. The remaining patients were treated with rituximab-containing therapy. We analyzed different LMR cutoff values at diagnosis and we wanted to investigate the prognostic effect among DLBCL and FL. Results: We found that the most discriminative LMR was 2.4 for DLBCL and 2 for FL. Among DLBCL patients, an LMR value 2 was associated with a longer time to treatment start compared with the LMR < 2 group p = .0096). Among the 92 patients treated with rituximab chemotherapy, 2-year PFS was superior in the LMR > 2 group. Conclusion: LMR at diagnosis is a simple tool to better define long-term outcome of DLBCL and FL patients. The use of this tool might better define selection in FL of ideal candidates for W&W strategy. (C) 2015 Elsevier Inc. All rights reserved.