; Kreuz, Markus ; Bibikova, Marina ; Bentink, Stefan ; Ammerpohl, Ole ; Wickham-Garcia, Eliza ; Rosolowski, Maciej ; Richter, Julia ; Lopez-Serra, Lidia ; Ballestar, Esteban
; Berger, Hilmar ; Agirre, Xabier ; Bernd, Heinz-Wolfram ; Calvanese, Vincenzo
; Cogliatti, Sergio B. ; Drexler, Hans G. ; Fan, Jian-Bing ; Fraga, Mario F. ; Hansmann, Martin L. ; Hummel, Michael ; Klapper, Wolfram ; Korn, Bernhard ; Küppers, Ralf ; Macleod, Roderick A. F. ; Möller, Peter ; Ott, German ; Pott, Christiane ; Prosper, Felipe
; Rosenwald, Andreas ; Schwaenen, Carsten ; Schübeler, Dirk ; Seifert, Marc
; Stürzenhofecker, Benjamin ; Weber, Michael ; Wessendorf, Swen ; Loeffler, Markus ; Trümper, Lorenz ; Stein, Harald ; Spang, Rainer ; Esteller, Manel
; Barker, David ; Hasenclever, Dirk ; Siebert, Reiner | Item type: | Article | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Journal or Publication Title: | Blood | ||||||||||||||||||||||||||||||||||
| Publisher: | AMER SOC HEMATOLOGY | ||||||||||||||||||||||||||||||||||
| Place of Publication: | WASHINGTON | ||||||||||||||||||||||||||||||||||
| Volume: | 113 | ||||||||||||||||||||||||||||||||||
| Number of Issue or Book Chapter: | 11 | ||||||||||||||||||||||||||||||||||
| Page Range: | pp. 2488-2497 | ||||||||||||||||||||||||||||||||||
| Date: | March 2009 | ||||||||||||||||||||||||||||||||||
| Institutions: | Medicine > Institut für Funktionelle Genomik > Lehrstuhl für Funktionelle Genomik (Prof. Oefner) | ||||||||||||||||||||||||||||||||||
| Identification Number: |
| ||||||||||||||||||||||||||||||||||
| Classification: |
| ||||||||||||||||||||||||||||||||||
| Keywords: | EMBRYONIC STEM-CELLS; DE-NOVO METHYLATION; DNA METHYLATION; DEVELOPMENTAL REGULATORS; INSTRUCTIVE MECHANISM; BURKITTS-LYMPHOMA; DEFINED FACTORS; HUMAN CANCER; GENE; EXPRESSION; | ||||||||||||||||||||||||||||||||||
| Dewey Decimal Classification: | 600 Technology > 610 Medical sciences Medicine 600 Technology > 610 Medical sciences Medicine | ||||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||||
| Refereed: | Yes, this version has been refereed | ||||||||||||||||||||||||||||||||||
| Created at the University of Regensburg: | Partially | ||||||||||||||||||||||||||||||||||
| Item ID: | 30654 |
Abstract
Lymphomas are assumed to originate at different stages of lymphocyte development through chromosomal aberrations. Thus, different lymphomas resemble lymphocytes at distinct differentiation stages and show characteristic morphologic, genetic, and transcriptional features. Here, we have performed a microarray-based DNA methylation profiling of 83 mature aggressive B-cell non-Hodgkin lymphomas ...

Abstract
Lymphomas are assumed to originate at different stages of lymphocyte development through chromosomal aberrations. Thus, different lymphomas resemble lymphocytes at distinct differentiation stages and show characteristic morphologic, genetic, and transcriptional features. Here, we have performed a microarray-based DNA methylation profiling of 83 mature aggressive B-cell non-Hodgkin lymphomas (maB-NHLs) characterized for their morphologic, genetic, and transcriptional features, including molecular Burkitt lymphomas and diffuse large B-cell lymphomas. Hierarchic clustering indicated that methylation patterns in maB-NHLs were not strictly associated with morphologic, genetic, or transcriptional features. By supervised analyses, we identified 56 genes de novo methylated in all lymphoma subtypes studied and 22 methylated in a lymphoma subtype-specific manner. Remarkably, the group of genes de novo methylated in all lymphoma subtypes was significantly enriched for polycomb targets in embryonic stem cells. De novo methylated genes in all maB-NHLs studied were expressed at low levels in lymphomas and normal hematopoietic tissues but not in nonhematopoietic tissues. These findings, especially the enrichment for polycomb targets in stem cells, indicate that maB-NHLs with different morphologic, genetic, and transcriptional background share a similar stem cell-like epigenetic pattern. This suggests that maB-NHLs originate from cells with stem cell features or that stemness was acquired during lymphomagenesis by epigenetic remodeling. (Blood. 2009;113:2488-2497)
Metadata last modified: 29 Sep 2021 07:40
Altmetric