Elevated neutrophil-to-lymphocyte ratio and monocyte-to-lymphocyte ratio and decreased platelet-to-lymphocyte ratio are associated with poor prognosis in multiple myeloma
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Lihui Shi1,*, Xiaoqi Qin1,2,*, Huijun Wang1, Yonghui Xia1, Yuanyuan Li1, Xuejing Chen1, Lei Shang1, Yu-Tzu Tai3, Xiaoyan Feng1, Prakrati Acharya4, Chirag Acharya3, Yan Xu1, Shuhui Deng1, Mu Hao1, Dehui Zou1, Yaozhong Zhao1, Kun Ru1, Lugui Qiu1, Gang An1
1State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, China
2Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan, China
3LeBow Institute for Myeloma Therapeutics and Jerome Lipper Center for Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
4Mount Auburn Hospital, Harvard Medical School, Cambridge, MA, USA
*These authors contributed equally to this work
Gang An, email: [email protected]
Kun Ru, email: [email protected]
Keywords: multiple myeloma, inflammation mark
Received: May 06, 2016 Accepted: September 20, 2016 Published: November 12, 2016
Elevated inflammatory markers are associated with poor outcomes in various types of cancers; however, their clinical significance in multiple myeloma (MM) have seldom been explored. This study investigated the prognostic relevance of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and monocyte-to-lymphocyte ratio (MLR) in MM. Totally 559 MM patients were included in this study. NLR, PLR and MLR were calculated from whole blood counts prior to therapy. Kaplan-Meier curves and multivariate Cox proportional models were used for the evaluation of the survival. It has shown that newly diagnosed MM patients were characterized by high NLR and MLR. Elevated NLR and MLR and decreased PLR were associated with unfavorable clinicobiological features. Applying cut-offs of 4 (NLR), 100 (PLR) and 0.3 (MLR), elevated NLR, MLR and decreased PLR showed a negative impact on outcome. Importantly, elevated NLR and decreased PLR were independent prognostic factors for progression-free survival. Thus, elevated NLR and MLR, and decreased PLR predict poor clinical outcome in MM patients and may serve as the cost-effective and readily available prognostic biomarkers.
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