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December 8, 2025BloodOpen Access

Multiple reciprocal interactions within B-cell receptor and AKT signaling pathways regulate response to EZH2 inhibition in germinal center-derived diffuse large B-cell lymphoma

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Authors

AGAarthi GoverdhanMaxygen (United States)AVAdriana VelasovaCharles UniversityZRZahid RafiqThe University of Texas at El Paso

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Implication

Findings reveal that BCR signaling impacts sensitivities to EZH2 inhibitors like tazemetostat in diffuse large B-cell lymphoma, indicating the therapeutic potential of combination strategies.

Key Points

  • This research explores the interactions between B-cell receptor signaling and AKT pathways in the context of EZH2 inhibition.
  • Utilized 10 GCB-DLBCL cell lines with modified EZH2
  • Employed CRISPR-Cas9 for genetic editing
  • Measured AKT activity using Förster resonance energy transfer-based reporters
  • Conducted experiments with primary normal B-lymphocytes and mouse models
  • Sensitivity to EZH2 inhibitors varied depending on BCR signaling dependence
  • EZH2 inhibition increased phosphorylation of BCR signaling mediators
  • BCR knockout enhanced sensitivity to EZH2 inhibitors in specific cell lines
  • Increased AKT activity was linked to reduced PTEN levels and elevated H3K27me3

Cite This Study

Goverdhan et al. (2025) studied this question.

synapsesocial.com/papers/693624d44fa91c937236d060https://doi.org/10.1182/blood-2025-435
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