Child ; Female ; Humans ; Lymphoma, Extranodal NK-T-Cell

OBJECTIVETo detect the expression level of asparagine synthetase (ASNS) in patients with relapsed or refractory extranodal NK/T cell lymphoma and explore its clinical significance.

METHODSTen patients with relapsed or refractory extranodal NK/T cell lymphoma admitted in our department from January, 2013 to January, 2016 were analyzed. The diagnoses were confirmed by pathological and immunohistochemical examination following failed chemotherapies in all cases. Branched DNA-liquidchip technique (bDNA-LCT) was used for detecting ASNS mRNA expression in paraffin-embedded tissue sections in the 10 cases of relapsed or refractory extranodal NK/T cell lymphoma and in 5 cases of chronic rhinitis. The correlations were analyzed between ASNS expression and the clinicopathological features and outcomes of the patients with failed chemotherapy regimens containing asparaginasum.

RESULTSSix out of the 10 patients with relapsed or refractory extranodal NK/T cell lymphoma died due to diseaseprogression. The expression level of ASNS was significantly higher in the lymphoma tissues than in tissue specimens of chronic rhinitis (P<0.05). The expression level of ASNS was associated with the International Prognostic Index (P=0.023) in patients with relapsed or refractory extranodal NK/T cell lymphoma, and Kaplan-Meier curve showed that a high ASNS expression was correlated with a reduced overall survival and progression-free survival of the patients.

CONCLUSIONAsparaginasum-based chemotherapy regimens are recommended for treatment of relapsed or refractory extranodal NK/T cell lymphoma with low ASNS expressions.

OBJECTIVETo explore the expression level of microRNA-26a and its target gene CDK6 in extranodal NK/T-cell lymphoma (ENKTCL) and their possible role in genesis and development of ENKTCL.

METHODSReal time fluorescent quantitative PCR was used to detect the expression level of miR-26a in tissue of 15 patients with ENKTCL and 10 samples of normal NK cells. Maxvision immunohistochemistry technique was used to detect the expression level of CDK6 and miR-26a in tissue of 20 ENKTCL cases, 10 cases of proliferative lymphadenitis and 10 samples of normal lymph node, respectively. The possible role of miR-26a and its target gene CDK6 in genesis and development of ENKTCL were analyzed according to the clinical features of ENKTCL patients.

RESULTSThe expression of miR-26a was significantly lower in ENKTCL than that in normal NK cells. The expression of CDK6 was significantly higher in ENKTCL group than that in group proliferative lymphadenitis and normal lymph node. Correlation analysis showed that there was significant negative correlation between miR-26a expression and CDK6 expression (r = -0.54, P = 0.04). Meanwhile, there were no correlation of miR-26a expression with age, sex, Ann Arbor stage, LDH level, B symptoms and IPI. Although, there were no correlation of CDK6 expression with age, sex, LDH level and B symptoms, there were positive correlation of CDK6 expression with Ann Arbor stage and IPI.

CONCLUSIONthat abnormal expression of miR-26a may participate in genesis and development of ENKTCL through regulating the expression of its target gene CDK6.

Malignant lymphoma complicated by Behcet's disease (BD) is a rare clinical entity. We report a case of BD complicated by malignant lymphoma in a 26-year-old male patient. The patient was diagnosed to have terminal ileum extranodal NK/T-cell lymphoma (nasal type) during treatment for BD with cyclophosphamide (CTX), immunoregulants and biological agents. This is the first case reported in China and the second case globally. The pathogenesis of BD complicated by malignant lymphoma remains unclear. We reviewed the relevant literatures to summarize the clinical characteristics of BD complicated by extranodal NK/T-cell lymphoma (nasal type) and discuss the possible pathogenesis in light of immunology, EB virus infection and medications.
Adult ; Behcet Syndrome ; complications ; Humans ; Lymphoma, Extranodal NK-T-Cell ; complications ; Male

Adolescent ; Female ; Humans ; Lymphoma, Extranodal NK-T-Cell ; pathology ; therapy ; Neoplasm Staging ; Nose ; pathology

Humans ; Ki-67 Antigen ; metabolism ; Lymphoma, Extranodal NK-T-Cell ; diagnosis ; Predictive Value of Tests ; Prognosis

OBJECTIVE: To explore the influence of lymphocyte-to-monocyte ratio (LMR) and neutrophil-to-lymphocyte ratio (NLR) on the prognosis of patients with extranodal NK/T cell lymphoma (ENKTL). METHODS: The clinical data of 203 patients with ENKTL admitted to the First Affiliated Hospital of Zhengzhou University from January 2011 to January 2020 were retrospectively analyzed. The ROC curve determined the limit values of LMR and NLR; Categorical variables were compared using a chi-square test, expressed as frequency and percentage (n,%). Continuous variables were expressed as medians and extremes and compared with the Mann-Whitney U test; Progression-free survival (PFS) and overall survival (OS) of different grouped LMR and NLR patients were analyzed using Kaplan-Meier curves and compared with log-rank tests. The COX proportional risk regression model was used to perform one-factor and multi-factor analysis of PFS and OS. RESULTS: The optimal critical values of LMR and NLR were determined by the ROC curve, which were 2.60 and 3.40, respectively. LMR≤2.60 was more likely to occur in patients with bone marrow invasion (P=0.029) and higher LDH (P=0.036), while NLR≥3.40 was more likely to occur in patients with higher ECOG scores (P=0.002), higher LDH (P=0.008), higher blood glucose (P=0.024), and lower PLT (P=0.010). Kaplan-Meier survival analysis showed that PFS and OS of patients in the high LMR group were significantly better than the low LMR group, while PFS and OS in the low NLR group were significantly better than the high NLR group. The results of multivariate COX analysis showed that EBV-DNA positive (P=0.047), LMR≤2.60 (P=0.014), NLR≥3.40 (P=0.023) were independent risk factors affecting PFS in patients with ENKTL. LMR≤2.60 (P<0.001), NLR≥3.40 (P=0.048), and high β2-MG (P=0.013) were independent risk factors affecting OS in patients with ENKTL. CONCLUSION Low LMR and high NLR before treatment are associated with poor prognosis in patients with ENKTL, which also can be used as an easily testable, inexpensive, and practical prognostic indicator in the clinic.
Humans ; Monocytes/pathology* ; Neutrophils ; Lymphoma, Extranodal NK-T-Cell/pathology* ; Retrospective Studies ; Lymphocytes ; Prognosis

Histiocytes/pathology* ; Humans ; Lymphoma, Extranodal NK-T-Cell/pathology* ; Nose Neoplasms/surgery*

Humans ; Leukemia ; Leukemia, Large Granular Lymphocytic ; Lymphoma, Extranodal NK-T-Cell ; Prognosis

A nasal-type extranodal natural killer/T-cell lymphoma is considered an aggressive form of non-Hodgkin's lymphoma, with approximately half of all patients relapsing during the follow-up period, and most relapses occurring within the first 2 years of remission. Here we report an unusual case of a 42-year-old man who experienced recurrence in single pleura after 8 years of remission.
Adenosine Deaminase ; Adult ; Follow-Up Studies ; Humans ; Lymphoma* ; Lymphoma, Extranodal NK-T-Cell ; Lymphoma, Non-Hodgkin ; Pleura ; Pleural Effusion ; Recurrence*