Cited by 258Genomics and Chromatin DynamicsEpigenetics and DNA MethylationLymphoma Diagnosis and Treatment

EZH2 and BCL6 Cooperate to Assemble CBX8-BCOR Complex to Repress Bivalent Promoters, Mediate Germinal Center Formation and Lymphomagenesis

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Béguelin, Wendy, Teater, Matt, Gearhart, Micah D., Calvo Fernández, María Teresa, Goldstein, Rebecca L., Cárdenas, Mariano G., Hatzi, Katerina, Rosen, Monica +11 more·2016·Cancer Cell

Abstract

The EZH2 histone methyltransferase mediates the humoral immune response and drives lymphomagenesis through formation of bivalent chromatin domains at critical germinal center (GC) B cell promoters. Herein we show that the actions of EZH2 in driving GC formation and lymphoma precursor lesions require site-specific binding by the BCL6 transcriptional repressor and the presence of a non-canonical PRC1-BCOR-CBX8 complex. The chromodomain protein CBX8 is induced in GC B cells, binds to H3K27me3 at bivalent promoters, and is required for stable association of the complex and the resulting histone modifications. Moreover, oncogenic BCL6 and EZH2 cooperate to accelerate diffuse large B cell lymphoma (DLBCL) development and combinatorial targeting of these repressors results in enhanced anti-lymphoma activity in DLBCLs.

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Crossref · 10.1016/j.ccell.2016.07.006

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Authors
Béguelin, W., Teater, M., Gearhart, M. D., Calvo Fernández, M. T., Goldstein, R. L., Cárdenas, M. G., Hatzi, K., Rosen, M., Shen, H., Corcoran, C. M., Hamline, M. Y., Gascoyne, R. D., Levine, R. L., Abdel-Wahab, O., Licht, J. D., Shaknovich, R., Elemento, O., Bardwell, V. J., & Melnick, A. M.
Affiliations
  • Cornell University (US)
  • University of Minnesota (US)
  • BC Cancer Agency (CA)
  • Memorial Sloan Kettering Cancer Center (US)
  • Northwestern University (US)
Corresponding author
  • Bardwell, Vivian J.
  • Melnick, Ari M.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2016-08
Volume
30
Issue
2
Pages
197-213
ISSN
1535-6108 (ISSN-L)
OpenAlex
W2515546929
Cited by
254
References
42
Citations by year
2026: 14 · 2025: 19 · 2024: 17 · 2023: 20 · 2022: 23 · 2021: 40 · 2020: 34 · 2019: 31 · 2018: 28 · 2017: 24 · 2016: 4
FWCI
15.08
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institutes of Health (5F30HL093996, 5T32GM008244, AHA 0810194Z)
  • National Cancer Institute (R01 CA071540)
  • American Society of Hematology
  • Leukemia and Lymphoma Society (TRP 6141-14)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Lymphoma Diagnosis and Treatment
Keywords
EZH2, BCL6, CBX8, BCOR, PRC1, bivalent promoters, H3K27me3, germinal center formation, diffuse large B-cell lymphoma, lymphomagenesis, histone methyltransferase, chromodomain protein, histone modifications, combination therapy
MeSH terms
Enhancer of Zeste Homolog 2 Protein, Animals, Humans, Mice, Inbred C57BL, Mice, Transgenic, Promoter Regions, Genetic, Proto-Oncogene Proteins, Repressor Proteins, Transcription, Genetic, Lymphoma, Large B-Cell, Diffuse, Germinal Center, Mitochondrial Membrane Transport Proteins, Mice, Proto-Oncogene Proteins c-bcl-6, Polycomb-Group Proteins, Polycomb Repressive Complex 1

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