Molecular characterization of Richter syndrome identifies de novo diffuse large B-cell lymphomas with poor prognosis
Richter syndrome (RS) is the transformation of chronic lymphocytic leukemia (CLL) into aggressive lymphoma, most commonly diffuse large B-cell lymphoma (DLBCL). We characterize 58 primary human RS samples by genome-wide DNA methylation and whole-transcriptome profiling. Our comprehensive approach de...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
19 January 2023
|
| In: |
Nature Communications
Year: 2023, Jahrgang: 14, Pages: 1-19 |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-022-34642-6 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41467-022-34642-6 Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41467-022-34642-6 |
| Verfasserangaben: | Julien Broséus, Sébastien Hergalant, Julia Vogt, Eugen Tausch, Markus Kreuz, Anja Mottok, Christof Schneider, Caroline Dartigeas, Damien Roos-Weil, Anne Quinquenel, Charline Moulin, German Ott, Odile Blanchet, Cécile Tomowiak, Grégory Lazarian, Pierre Rouyer, Emil Chteinberg, Stephan H. Bernhart, Olivier Tournilhac, Guillaume Gauchotte, Sandra Lomazzi, Elise Chapiro, Florence Nguyen-Khac, Céline Chery, Frédéric Davi, Mathilde Hunault, Rémi Houlgatte, Andreas Rosenwald, Alain Delmer, David Meyre, Marie-Christine Béné, Catherine Thieblemont, Peter Lichter, Ole Ammerpohl, Jean-Louis Guéant, ICGC MMML-Seq Consortium, Romain Guièze, José Ignacio Martin-Subero, Florence Cymbalista, Pierre Feugier, Reiner Siebert, Stephan Stilgenbauer |
| Zusammenfassung: | Richter syndrome (RS) is the transformation of chronic lymphocytic leukemia (CLL) into aggressive lymphoma, most commonly diffuse large B-cell lymphoma (DLBCL). We characterize 58 primary human RS samples by genome-wide DNA methylation and whole-transcriptome profiling. Our comprehensive approach determines RS DNA methylation profile and unravels a CLL epigenetic imprint, allowing CLL-RS clonal relationship assessment without the need of the initial CLL tumor DNA. DNA methylation- and transcriptomic-based classifiers were developed, and testing on landmark DLBCL datasets identifies a poor-prognosis, activated B-cell-like DLBCL subset in 111/1772 samples. The classification robustly identifies phenotypes very similar to RS with a specific genomic profile, accounting for 4.3-8.3% of de novo DLBCLs. In this work, RS multi-omics characterization determines oncogenic mechanisms, establishes a surrogate marker for CLL-RS clonal relationship, and provides a clinically relevant classifier for a subset of primary “RS-type DLBCL” with unfavorable prognosis. |
|---|---|
| Beschreibung: | Gesehen am 30.08.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-022-34642-6 |