Diagenode

>>>   Click for Diagenode’s approach to COVID-19

Mutant EZH2 Induces a Pre-malignant Lymphoma Niche by Reprogramming the Immune Response.


Béguelin W, Teater M, Meydan C, Hoehn KB, Phillip JM, Soshnev AA, Venturutti L, Rivas MA, Calvo-Fernández MT, Gutierrez J, Camarillo JM, Takata K, Tarte K, Kelleher NL, Steidl C, Mason CE, Elemento O, Allis CD, Kleinstein SH, Melnick AM

Follicular lymphomas (FLs) are slow-growing, indolent tumors containing extensive follicular dendritic cell (FDC) networks and recurrent EZH2 gain-of-function mutations. Paradoxically, FLs originate from highly proliferative germinal center (GC) B cells with proliferation strictly dependent on interactions with T follicular helper cells. Herein, we show that EZH2 mutations initiate FL by attenuating GC B cell requirement for T cell help and driving slow expansion of GC centrocytes that become enmeshed with and dependent on FDCs. By impairing T cell help, mutant EZH2 prevents induction of proliferative MYC programs. Thus, EZH2 mutation fosters malignant transformation by epigenetically reprograming B cells to form an aberrant immunological niche that reflects characteristic features of human FLs, explaining how indolent tumors arise from GC B cells.

Tags
Microplex Library Preparation kit
True MicroChIP kit

Share this article

Published
May, 2020

Source

Products used in this publication

  • ChIP kit icon
    C01010132
    True MicroChIP-seq Kit
  • ChIP kit icon
    C05010012
    MicroPlex Library Preparation Kit v2 (12 indexes)

Events

  • ChIP workshop
    Diagenode
    Sep 21-Sep 22, 2021
  • DNA methylation workshop: Master MeDIP assay
    Diagenode
    Sep 30, 2021
  • DNA methylation workshop: Become an expert at RRBS
    Diagenode
    Oct 1-Oct 31, 2021
 See all events

News

 See all news


The European Regional Development Fund and Wallonia are investing in your future.

Extension of industrial buildings and new laboratories.



  ABOUT SSL CERTIFICATES

       Site map   |   Contact us   |   Conditions of sales   |   Conditions of purchase   |   Privacy policy   |   Diagenode Diagnostics