Significance of Peripheral Blood Lymphatic to Monocyte Ratio in the Progress of PGI-DLBCL / 中国实验血液学杂志

OBJECTIVE@#To explore the significance of lymphocyte to monocyte ratio (LMR) in the disease progress of primary gastrointestinal diffuse large B-cell lymphoma (PGI-DLBCL).@*METHODS@#The clinical data of 43 patients diagnosed as PGI-DLBCL in our hospital from January 2011 to December 2015 were collected, and the disease progress was followed up.@*RESULTS@#According to the ROC curve, the threshold value of LMR for 2 years PFS (%) of PGI-DLBCL patients was 2.6. Unvariate analysis showed that LMR (P＜0.05), large enclosed mass lesion (P＜0.01) and IPI (P＜0.05) were prognostic factors affecting PFS, the COX regression model multivariate analysis showed that LMR＜2.6 [ (risk ratio (RR)=3.083, 95%CI 1.828-8.313, P＜0.01], and large enclosed mass lesions (RR=2.718, 95%CI 1.339-6.424, P＜0.05) were the independent adverse prognostic factor for two years PFS.@*CONCLUSION@#Both LMR＜2.6 and large enclosed mass lesions relate with the progress of PGI-DLBCL.

Effect of Asparaginase on Diffuse Large B-Cell Lymphoma Cell Apoptosis and Its Related Mechanism / 中国实验血液学杂志

OBJECTIVE@#To investigate the effects and its potential mechanism of asparaginase on proliferation, cell cycle and apoptosis of diffuse large B-cell lymphoma (DLBCL) cell lines.@*METHODS@#CCK-8 assay was used to detect the effect of asparaginase on proliferation of DLBCL cell lines. Flow cytometry was used to analyze cell cycle and apoptosis. Western blot was used to analyze apoptosis and its potential mechanism.@*RESULTS@#Asparaginase obviously inhibited the proliferation of multiple DLBCL cell lines and caused G/G cell arrest. Furtherly, asparaginase inhibited the expression of HIF-1α which related to poor prognosis of patients with DLBCL, up-regulated the expression of DR4 and caspase 8, reduce the expression of c-FLIP. Meanwhile, asparaginase induced the expression of pro-apoptotic protein BAX and inhibited the expression of anti-apoptotic protein MCL-1.@*CONCLUSION@#Asparaginase can inhibit the proliferation of DLBCL cell lines, cause the arrest of cells in G/G and induce apoptosis via the endogenous and exogenous apoptotic pathways.

Effect of IKK2 Inhibitor LY2409881 on Diffuse Large B-Cell Lymphoma Cell Apoptosis and Its Mechanism / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the effects and its potential mechanism of IKK2 inhibitor LY2409881 on proliferation, cell cycle and apoptosis of diffuse large B-cell lymphoma (DLBCL) cell lines.</p><p><b>METHODS</b>CCK8 assay was used to detect the effect of LY2409881 on proliferation of DLBCL cell lines; Flow cytometry was used to analyze cell cycle; Western blot was used to analyze apoptosis and its potential mechanism.</p><p><b>RESULTS</b>LY2409881 inhibited the proliferation of multiple DLBCL cell lines obviously, and caused G cell arrest. Furtherly, LY2409881 inhibited the expression of c-FLIP, induced the activation of DR4 and caspase 8. Meanwhile, LY2409881 induced the expression of pro-apoptotic protein BAX and inhibited the expression of anti-apoptotic protein MCL-1 and BCL-2.</p><p><b>CONCLUSION</b>LY2409881 inhibits the proliferation of DLBCL cell lines, causes G cell arrest and induces apoptosis via the endogenous and exogenous apoptotic pathways.</p>