Dual expression of MYC and BCL2 proteins predicts worse outcomes in diffuse large B-cell lymphoma.

Abstract:

:Recent studies suggested that MYC and BCL2 protein co-expression is an independent indicator of poor prognosis in diffuse large B-cell lymphoma. However, the immunohistochemistry protocols for dual-expression staining and the scoring cut-offs vary by study. Sixty-nine cases of diffuse large B-cell lymphoma were evaluated for MYC and BCL2 protein expression using various cut-offs that have been recommended in prior studies. Independent of the International Prognostic Index risk group, cases with dual protein expression of BCL2 and MYC using ≥50%/40% cut-offs and ≥70%/40% had significantly shorter overall survival than cases without. It was verified in this patient population that the use of BCL2 and MYC immunohistochemistry, performed with available in vitro diagnostic-cleared antibodies, provides rapid prognostic information in patients with de novo diffuse large B-cell lymphoma. This study has practical implications for diagnostic laboratories and serves as a guide for implementation in the setting of future clinical trials.

journal_name

Leuk Lymphoma

journal_title

Leukemia & lymphoma

authors

Clark Schneider KM,Banks PM,Collie AM,Lanigan CP,Manilich E,Durkin LM,Hill BT,Hsi ED

doi

10.3109/10428194.2015.1101099

subject

Has Abstract

pub_date

2016-07-01 00:00:00

pages

1640-8

issue

7

eissn

1042-8194

issn

1029-2403

journal_volume

57

pub_type

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