scholarly journals Phenotypic Characterization of Diffuse Large B-Cell Lymphoma Cells and Prognostic Impact

2019 ◽  
Vol 8 (7) ◽  
pp. 1074 ◽  
Author(s):  
Julie Devin ◽  
Alboukadel Kassambara ◽  
Angélique Bruyer ◽  
Jérôme Moreaux ◽  
Caroline Bret
Keyword(s):  
B Cell ◽  
Cell Lines ◽  
Risk Score ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Phenotypic Characterization ◽  
Prognostic Impact ◽  
Large B Cell Lymphoma ◽  
Large B Cell

Multiparameter flow cytometry (MFC) is a fast and cost-effective technique to evaluate the expression of many lymphoid markers in mature B-cell neoplasms, including diffuse large B cell lymphoma (DLBCL), which is the most frequent non-Hodgkin lymphoma. In this study, we first characterized by MFC the expression of 27 lymphoid markers in 16 DLBCL-derived cell lines to establish a robust algorithm for their authentication. Then, using the expression profile in DLBCL samples of the genes encoding B lymphoid markers that are routinely investigated by MFC, we built a gene expression-based risk score, based on the expression level of BCL2, BCL6, CD11c, and LAIR1, to predict the outcome of patients with DLBCL. This risk score allowed splitting patients in four risk groups, and was an independent predictor factor of overall survival when compared with the previously published prognostic factors. Lastly, to investigate the potential correlation between BCL2, BCL6, CD11c, and LAIR1 protein level and resistance to treatment, we investigated the response of the 16 DLBCL cell lines to cyclophosphamide, etoposide, doxorubicin, and gemcitabine. We found a correlation between BCL6 overexpression and resistance to etoposide. These results show the interest of MFC for the routine characterization of DLBCL cells and tumors samples for research and diagnostic/prognostic purposes.

Characterization of the mutational profile of 11 diffuse large B-cell lymphoma cell lines

2017 ◽  
Vol 59 (7) ◽  
pp. 1710-1716 ◽  
Author(s):  
Darius Juskevicius ◽  
Anne Müller ◽  
Hind Hashwah ◽  
Pontus Lundberg ◽  
Alexandar Tzankov ◽  
...  
Keyword(s):  
B Cell ◽  
Cell Lines ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Lymphoma Cell ◽  
Large B Cell Lymphoma ◽  
Large B Cell

Prognostic Impact of Six Versus Eight Cycles of Standard Regimen in Patients With Diffuse Large B-Cell Lymphoma

2020 ◽  
Author(s):  
Kana Oiwa ◽  
Kei Fujita ◽  
Shin Lee ◽  
Tetsuji Morishita ◽  
Hikaru Tsukasaki ◽  
...  
Keyword(s):  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Prognostic Impact ◽  
Standard Regimen ◽  
Large B Cell Lymphoma ◽  
Large B Cell

scholarly journals Prognostic impact of protein kinase C β II expression in R-CHOP-treated diffuse large B-cell lymphoma patients

2010 ◽  
Vol 23 (5) ◽  
pp. 686-693 ◽  
Author(s):  
Sari Riihijärvi ◽  
Satu Koivula ◽  
Heidi Nyman ◽  
Karin Rydström ◽  
Mats Jerkeman ◽  
...  
Keyword(s):  
Protein Kinase C ◽  
Protein Kinase ◽  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Prognostic Impact ◽  
Kinase C ◽  
Large B Cell Lymphoma ◽  
Large B Cell

scholarly journals MicroRNA-181a Inhibits Activated B-Cell-Like Diffuse Large B-Cell Lymphoma Progression by Repressing CARD11

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Danxia Zhu ◽  
Cheng Fang ◽  
Wenting He ◽  
Chen Wu ◽  
Xiaodong Li ◽  
...  
Keyword(s):  
B Cell ◽  
Binding Site ◽  
Cell Lines ◽  
Expression Vector ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Wild Type ◽  
Protein Levels ◽  
Large B Cell Lymphoma ◽  
Large B Cell

We investigated the role of miR-181a in diffuse large B-cell lymphoma (DLBCL) and its potential target genes. miR-181a levels were lower in activated B-cell- (ABC-) like DLBCL cells than that in germinal center B-cell- (GCB-) like DLBCL cells. Overexpression of miR-181a in ABC-like DLBCL cell lines (OCI-LY10 and U2932) resulted in G0/G1 cell cycle arrest, increased apoptosis, and decreased invasiveness. miRNA target prediction programs (miRanda, TargetScan, and miRDB) identified caspase recruitment domain-containing protein 11 (CARD11) as a putative miR-181a target. CARD11 mRNA and protein levels were higher in the ABC-like DLBCL than that in GCB-like DLBCL. Moreover, CARD11 mRNA and protein levels were downregulated in the OCI-LY10 and U2932 cell lines overexpressing miR-181a. Dual luciferase reporter assays confirmed the miR-181a binding site in the CARD11 3′UTR region. OCI-LY10 and U2932 cells transfected with a CARD11 expression vector encoding miR-181a with a mutated binding site showed higher CARD11 protein levels, cell viability, G2/M phase cells, and invasiveness compared to those transfected with a wild-type CARD11 expression vector. Nude mice xenografted with OCI-LY10 cells with overexpressed wild-type miR-181a generated smaller tumors compared to those with overexpressed mutated binding site of CARD11 3′UTR and miR-181a. These results indicate that miR-181a inhibits ABC-like DLBCL by repressing CARD11.

Prognostic impact of immunohistochemical biomarkers in diffuse large B-cell lymphoma in the rituximab era

2009 ◽  
Vol 100 (10) ◽  
pp. 1842-1847 ◽  
Author(s):  
Ritsuko Seki ◽  
Koichi Ohshima ◽  
Tomoaki Fujisaki ◽  
Naokuni Uike ◽  
Fumio Kawano ◽  
...  
Keyword(s):  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
Prognostic Impact ◽  
Large B Cell Lymphoma ◽  
Large B Cell
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