Expression of the polycomb-group gene BMI1 is related to an unfavourable prognosis in primary nodal DLBCL.

Abstract:

BACKGROUND:Clinical outcome in patients with diffuse large B cell lymphomas (DLBCL) is highly variable and poorly predictable. Microarray studies showed that patients with DLBCL with a germinal centre B cell-like (GCB) phenotype have a better prognosis than those with an activated B cell-like (ABC) phenotype. The BMI1 proto-oncogene was identified as one of the genes present in the signature of the ABC type of DLBCL, associated with a poor prognosis. OBJECTIVES:(1) To investigate, in primary nodal DLBCL, the expression of BMI1 and its association with clinical outcome and DLBCL signature; (2) to look for an association between BMI1 expression and the expression of its putative downstream targets p14ARF and p16INK4a. RESULTS:BMI1 expression was found to be associated with poor clinical outcome, but not clearly with an ABC-like phenotype of DLBCL. Expression of BMI1 was frequently, but not always, related to low levels of expression of p14ARF and p16INK4a. CONCLUSION:Expression of BMI1 is associated with an unfavourable clinical outcome of primary nodal DLBCL.

journal_name

J Clin Pathol

authors

van Galen JC,Muris JJ,Oudejans JJ,Vos W,Giroth CP,Ossenkoppele GJ,Otte AP,Raaphorst FM,Meijer CJ

doi

10.1136/jcp.2006.038752

subject

Has Abstract

pub_date

2007-02-01 00:00:00

pages

167-72

issue

2

eissn

0021-9746

issn

1472-4146

pii

jcp.2006.038752

journal_volume

60

pub_type

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