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Dadun > Depósito Académico > CIMA (Centro de Investigación Médica Aplicada) > Área de Oncología > Terapia celular > DA - CIMA - Oncología - Terapia celular - Artículos de Revista >

New insights into the biology and origin of mature aggressive B-cell lymphomas by combined epigenomic, genomic, and transcriptional profiling
Autor(es) : Martin-Subero, J.I. (Jose Ignacio)
Kreuz, M. (Markus)
Bibikova, M. (M.)
Bentink, S. (S.)
Ammerpoh, O. (Ole)
Wickham, E. (Eliza)
Rosolowski, M. (Maciej)
Richter, J. (Julia)
Lopez-Serra, L. (Lidia)
Ballestar, E. (E.)
Berger, H. (H.)
Aguirre, X. (Xavier)
Bernd, H.W (H.W.)
Calvanese, V. (V.)
Cogliatti, S. (S.B.)
Drexler, H.G. (Hans G.)
Fan, J.B. (Jian-Bing)
Fraga, M.F. (Mario F.)
Hansmann, M.L. (Martin-Leo)
Hummel, M. (M.)
Klapper, W. (Wolfram)
Korn, B. (Bernhard)
Küppers, R. (Ralf)
MacLeod, R.A.F. (Roderick A.F.)
Möller, P. (Peter)
Ott, G. (German)
Pott, C. (Christiane)
Prosper, F. (Felipe)
Rosenwald, A. (Andreas)
Schwaenen, C. (Carsten)
Schübeler, D. (Dirk)
Seifert, M. (Marc)
Stürzenhofecker, B. (Benjamin)
Weber, M. (Michael)
Wessendorf, S. (Swen)
Loeffler, M. (Markus)
Trümper, L. (Lorenz)
Stein, H. (Harald)
Spang, R. (Rainer)
Esteller, M. (Manel)
Barker, D. (D.)
Hasenclever, D. (D.)
Siebert, R. (Reiner)
Palabras clave : Materias Investigacion::Ciencias de la Salud::Oncología
Fecha incorporación: 2009
Editorial : American Society of Hematology
Versión del editor: http://dx.doi.org/10.1182/blood-2008-04-152900
ISSN: 0006-4971
Cita: Martín-Subero, J. I., Kreuz, M., Bibikova, M., Bentink, S. et al. New insights into the biology and origin of mature aggressive B-cell lymphomas by combined epigenomic, genomic, and transcriptional profiling.Blood (2009); 113: 2488-2497
Resumen
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.
Enlace permanente: http://hdl.handle.net/10171/18155
Aparece en las colecciones: DA - CIMA - Oncología - Síndromes mieloproliferativos - Artículos de Revista
DA - CIMA - Oncología - Terapia celular - Artículos de Revista
DA - CUN - Área de Terapia Celular - Artículos de revista
DA - Medicina - Hematología - Artículos de revista

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