Evidence map›Paper›PMID 42026179›Full record

ArticleLeukemia2026

The spectrum of immunoglobulin heavy chain enhancer hijacking in chronic lymphocytic leukemia.

Cosima Drewes, Cristina López, Nnamdi Okeke, Billy Jebaraj, Christoph Wiegreffe, Isabelle Kraus, Sina Hillebrecht, Amani Awada, Susanne Bens, Emil Chteinberg and 19 more

Abstract read
In one paragraph

Article in Leukemia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Cosima DrewesInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0009-0008-5160-4732
Cristina LópezInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Nnamdi OkekeInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Billy JebarajDivision of CLL, Department of Internal Medicine III, Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0000-0002-6188-1652
Christoph WiegreffeInstitute of Molecular and Cellular Anatomy, Albert-Einstein-Allee 11, 89081, Ulm, Germany.ORCID http://orcid.org/0009-0008-4124-9837
Isabelle KrausMax Planck Institute for Molecular Genetics, Berlin, Germany.ORCID http://orcid.org/0009-0005-9764-4041
Sina HillebrechtInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Amani AwadaInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Susanne BensInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0009-0008-5263-495X
Emil ChteinbergInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0000-0002-9231-9291
Barbara EichhorstDepartment I of Internal Medicine and German CLL Study Group; Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany.
Sarah DatismannInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Martin J S DyerThe Ernest and Helen Scott Haematological Research Institute, Leicester Cancer Research Centre, University of Leicester, Leicester, UK.ORCID http://orcid.org/0000-0002-5033-2236
Anja FischerInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0000-0002-7145-2544
Kirsten FischerDepartment I of Internal Medicine and German CLL Study Group; Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany.
Selina GlaserInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0009-0008-2923-1829
Michael HallekDepartment I of Internal Medicine and German CLL Study Group; Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD), University of Cologne, Faculty of Medicine and University Hospital of Cologne, Cologne, Germany.ORCID http://orcid.org/0000-0002-7425-4455
Helene KretzmerMax Planck Institute for Molecular Genetics, Berlin, Germany.
Anja MottokInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Dominick PfaffInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Karoline SchnitzlerInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Jan P Meier-KolthoffBiomedical Informatics, Data Mining and Data Analytics, Faculty of Applied Computer Science and Medical Faculty, University of Augsburg, Augsburg, Germany.
Matthias SchlesnerBiomedical Informatics, Data Mining and Data Analytics, Faculty of Applied Computer Science and Medical Faculty, University of Augsburg, Augsburg, Germany.ORCID http://orcid.org/0000-0002-5896-4086
Christof SchneiderDivision of CLL, Department of Internal Medicine III, Ulm University Medical Center, Ulm, Germany.
Stefan BritschInstitute of Molecular and Cellular Anatomy, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Ole AmmerpohlInstitute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany.
Stephan StilgenbauerDivision of CLL, Department of Internal Medicine III, Ulm University Medical Center, Ulm, Germany.ORCID http://orcid.org/0000-0002-6830-9296
Eugen Tausch *Division of CLL, Department of Internal Medicine III, Ulm University Medical Center, Ulm, Germany. eugen.tausch@uniklinik-ulm.de.
Reiner Siebert *Institute of Human Genetics, Ulm University and Ulm University Medical Center, Ulm, Germany. reiner.siebert@uni-ulm.de.ORCID http://orcid.org/0000-0001-7433-3703

Funding

Deutsche Forschungsgemeinschaft (German Research Foundation) SFB1074 B10N
6 · The paper itself

Abstract

Activation of oncogenes by hijacking immunoglobulin gene loci (IG) enhancers via chromosomal translocation is a common pathogenetic mechanism in B-cell malignancies, affecting 5-10% of chronic lymphocytic leukemia (CLL). The oncogenic partners in many of these cases remain unidentified. Therefore, we conducted a comprehensive analysis of 144 CLL samples with IGH-translocation excluding IGH::BCL2, IGH::CCND1, IGH::BCL3 and IGH::MYC. By combining fluorescence in situ hybridization (FISH) with whole-genome, targeted sequencing, and RNA expression profiling, we identified 25 IG-translocation partners; 12 were previously unreported. Of 142 cases, 107 (75%) displayed an unmutated IGHV. Genetic profiling showed a heterogenous distribution of chromosomal aberrations and recurrently mutated genes across the groups. Of 41 informative cases, 32 (78%) exhibited breakpoints driven by aberrant class-switch recombination (CSR), with prominent involvement of IGHM (9/41) and IGHG3 (9/41). Three cases with unmutated IGHV carried a juxtaposition of the IGH locus 5' to the intact NKX2.6 gene in chromosome 8p21.2 due to illegitimate VDJ recombination, associated with significant ectopic upregulation of NKX2.6 transcriptional expression (FDR < 0.001, logFC: 15). Similarly, METRNL, located at the telomere of chromosome 17q25, was identified as a translocation partner gene in four cases. Our findings expand the spectrum of the oncogenic translocation partners targeting IGH in CLL.

Indexed as

Enhancer Elements, GeneticImmunoglobulin Heavy ChainsLeukemia, Lymphocytic, Chronic, B-CellTranslocation, GeneticChromosome AberrationsHumansIn Situ Hybridization, FluorescenceMutationImmunoglobulin Heavy Chains

Identifiers

PMID42026179
PMCPMC13323050

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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.