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Epigenetically programmed identity crisis to combat diffuse large B cell lymphoma.

Rachele Niccolai1, Camiel Göbel1, Heinz Jacobs2

  • 1Division of Tumor Biology and Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands.

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|November 8, 2025
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Summary
This summary is machine-generated.

Germinal center B cell-like diffuse large B cell lymphoma (GCB-DLBCL) arises from genetic changes causing differentiation arrest. Targeting epigenetic vulnerabilities can induce an identity crisis, promoting differentiation and offering a novel therapeutic strategy.

Keywords:
B cell differentiationcell identitydiffuse large B cell lymphomaepigeneticsgerminal center

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Area of Science:

  • Hematology
  • Oncology
  • Epigenetics

Background:

  • Germinal center B cell-like diffuse large B cell lymphoma (GCB-DLBCL) originates from malignant germinal center B cells.
  • Transcriptional and epigenetic dysregulations, driven by mutations and translocations, cause differentiation arrest, uncontrolled proliferation, and survival in GCB-DLBCL.
  • Understanding these dependencies is crucial for developing targeted therapies.

Purpose of the Study:

  • To review the key transcriptional and epigenetic dependencies sustaining the GCB-DLBCL phenotype.
  • To identify therapeutic vulnerabilities within these dependencies.
  • To define a novel therapeutic strategy targeting GCB-DLBCL.

Main Methods:

  • Literature review focusing on transcriptional and epigenetic dysregulations in GCB-DLBCL.
  • Analysis of mechanisms driving differentiation arrest and tumor cell survival.
  • Conceptualization of epigenetic reprogramming as a therapeutic approach.

Main Results:

  • GCB-DLBCL is characterized by specific transcriptional and epigenetic dependencies.
  • Targeting these dependencies can disrupt tumor cell phenotype.
  • Epigenetic targeting can induce an 'identity crisis,' promoting partial differentiation.

Conclusions:

  • Epigenetic targeting of GCB-DLBCL vulnerabilities offers a promising therapeutic strategy.
  • This approach aims to reverse differentiation arrest, leading to antiproliferative and proapoptotic states.
  • The concept of an epigenetically programmed identity crisis may extend to other malignancies.