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MYC and BCL2 protein expression predicts survival in patients with diffuse large B-cell lymphoma treated with rituximab.

Abstract：

:Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous disease and "double-hit" DLBCL, with both MYC and BCL2 translocations has a poor prognosis. In this study, we investigated whether MYC and BCL2 protein expression in tissue would predict survival in DLBCL. The study included 106 cases of de novo DLBCL treated with rituximab and cyclophosphamide, doxorubicin, vincristine and prednisone (R-CHOP) or CHOP-like regimens. The results were validated on an independent cohort of 205 DLBCL patients. Patients with low expression of BCL2 (≤30%) and MYC (≤50%) had the best prognosis, whereas those with high BCL2 (>30%) and MYC (>50%) had the worst outcome. In multivariate analysis, the combination of the BCL2 and MYC was an independent predictor of overall survival (OS) and event-free survival (EFS) (P = 0·015 and P = 0·005, respectively). The risk of death was nine times greater for patients with high BCL2 and MYC compared to those with low expression. High BCL2 and MYC was a strong predictor of poor OS (P < 0·001) and EFS (P = 0·0017) in patients with the germinal centre B-cell (GCB) type, but not in the non-GCB type. In DLBCL, high co-expression of MYC and BCL2 was an independent predictor of poor survival, and could be used to stratify patients for risk-adapted therapies.

journal_name

Br J Haematol

journal_title

British journal of haematology

authors

Perry AM,Alvarado-Bernal Y,Laurini JA,Smith LM,Slack GW,Tan KL,Sehn LH,Fu K,Aoun P,Greiner TC,Chan WC,Bierman PJ,Bociek RG,Armitage JO,Vose JM,Gascoyne RD,Weisenburger DD

doi

10.1111/bjh.12763

subject

Has Abstract

pub_date

2014-05-01 00:00:00

pages

382-91

issue

3

eissn

0007-1048

issn

1365-2141

journal_volume

165

pub_type

杂志文章

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