Abstract
To investigate the role of myeloid-derived suppressor cells (MDSC) in the prognosis of patients with diffuse large B cell lymphoma (DLBCL). The peripheral blood of 52 DLBCL patients and 30 healthy volunteers was collected. The CD14+HLA-DRlow/- was used as the immune marker for MDSC. The role of MDSC in the prognosis of DLBCL patients was analyzed by combination with the related clinicopathological data. The proportion of MDSC in peripheral blood of newly diagnosed DLBCL patients increased significantly (P＜0.01). The expression of MDSC in DLBCL patients was related with clinical staging, lactate dehydrogenase (LDH) level and IPI score (P＜0.01). There was no significant correlation with sex, age, and B symptoms. Univariate analysis showed that the clinical stage, serum LDH level, IPI score and MDSC level were the adverse factors affecting the overall survival (OS). Multivariate analysis showed that IPI score and MDSC level were independent risk factors for OS in DLBCL patients. MDSC can be used as an important index to evaluate the prognosis of DLBCL patients, contributing to evaluate the immune and tumor microenvironment of DLBCL patients.
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