Evidence map›Paper›PMID 17625604›Full record

ArticleLeukemia2007

Distinctive patterns of BCL6 molecular alterations and their functional consequences in different subgroups of diffuse large B-cell lymphoma.

J Iqbal, T C Greiner, K Patel, B J Dave, L Smith, J Ji, G Wright, W G Sanger, D L Pickering, S Jain and 19 more

Abstract read
In one paragraph

Article in Leukemia, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 214 citations in OpenAlex.

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35 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

29 authors at 9 institutions in 5 countries.

J IqbalDepartment of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
T C Greiner
K Patel
B J Dave
L Smith
J Ji
G Wright
W G Sanger
D L Pickering
S Jain
D E Horsman
Y Shen
K Fu
D D Weisenburger
C P Hans
E Campo
R D Gascoyne
A Rosenwald
E S Jaffe
J Delabie
L Rimsza
G Ott
H K Müller-Hermelink
J M Connors
J M Vose
T McKeithan
L M Staudt
W C Chan
Leukemia/Lymphoma Molecular Profiling Project
University of Nebraska Medical Center · USUniversity of Würzburg · DEBC Cancer Agency · CANational Cancer Institute · USNational Institutes of Health · USUniversitat de Barcelona · ESUniversity of Arizona · USUniversity of British Columbia · CAUniversity of Oslo · NO

Funding

UNMC/EPPLEY CANCER CENTER SUPPORT GRANTP30CA036727 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI Apar Kishor Ganti · 1985 to 2026
$55.0M
Molecular Signatures to Improve Diagnosis and Outcome PrU01CA114778 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI CHAN, WING C. · 2005 to 2009
$8.7M
REGULATION OF GENE EXPRESSION IN NORMAL AND MALIGNANT HUMAN LYMPHOCYTESZ01SC004024 · SC · CLINICAL SCIENCES · PI STAUDT, LOUIS · 1996 to 2007
$4.4M
MOLECULAR CLASSIFICATION OF B-CELL LYMPHOMAU01CA084967 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI CHAN, WING C. · 1999 to 2004
$4.1M
Lymphoma Disease Discovery and DefintionZ01SC000550 · SC · DIVISION OF CLINICAL SCIENCES - NCI · PI JAFFE, ELAINE · 1996 to 2008
$2.3M
NCI NIH HHS CA36727NCI NIH HHS CA84967NCI NIH HHS P30 CA036727NCI NIH HHS U01 CA084967NCI NIH HHS U01 CA114778
6 · The paper itself

Abstract

Gene expression profiling of diffuse large B-cell lymphoma (DLBCL) has revealed biologically and prognostically distinct subgroups: germinal center B-cell-like (GCB), activated B-cell-like (ABC) and primary mediastinal (PM) DLBCL. The BCL6 gene is often translocated and/or mutated in DLBCL. Therefore, we examined the BCL6 molecular alterations in these DLBCL subgroups, and their impact on BCL6 expression and BCL6 target gene repression. BCL6 translocations at the major breakpoint region (MBR) were detected in 25 (18.8%) of 133 DLBCL cases, with a higher frequency in the PM (33%) and ABC (24%) subgroups than in the GCB (10%) subgroup. Translocations at the alternative breakpoint region (ABR) were detected in five (6.4%) of 78 DLBCL cases, with three cases in ABC and one case each in the GCB and the unclassifiable subgroups. The translocated cases involved IgH and non-IgH partners in about equal frequency and were not associated with different levels of BCL6 mRNA and protein expression. BCL6 mutations were detected in 61% of DLBCL cases, with a significantly higher frequency in the GCB and PM subgroups (>70%) than in the ABC subgroup (44%). Exon-1 mutations were mostly observed in the GCB subgroup. The repression of known BCL6 target genes correlated with the level of BCL6 mRNA and protein expression in GCB and ABC subgroups but not with BCL6 translocation and intronic mutations. No clear inverse correlation between BCL6 expression and p53 expression was observed. Patients with higher BCL6 mRNA or protein expression had a significantly better overall survival. The biological role of BCL6 in translocated cases where repression of known target genes is not demonstrated is intriguing and warrants further investigation.

Indexed as

MutationDNA-Binding ProteinsDNA Mutational AnalysisExonsGene Expression ProfilingGene Expression Regulation, NeoplasticHumansIn Situ Hybridization, FluorescenceIntronsLymphoma, Large B-Cell, DiffuseModels, GeneticPrognosisProto-Oncogene Proteins c-bcl-6RNA, MessengerTime FactorsTranslocation, GeneticBCL6 protein, humanDNA-Binding ProteinsProto-Oncogene Proteins c-bcl-6RNA, Messenger

Identifiers

PMID17625604
PMCPMC2366166
OpenAlexW2026214119

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.