Analyzing primary Hodgkin and Reed-Sternberg cells to capture the molecular and cellular pathogenesis of classical Hodgkin lymphoma
The pathogenesis of classical Hodgkin lymphoma (cHL), the most common lymphoma in the young, is still enigmatic, largely because its Hodgkin and Reed-Sternberg (HRS) tumor cells are rare in the involved lymph node and therefore difficult to analyze. Here, by overcoming this technical challenge and p...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
September 5, 2012
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| In: |
Blood
Year: 2012, Jahrgang: 120, Heft: 23, Pages: 4609-4620 |
| ISSN: | 1528-0020 |
| DOI: | 10.1182/blood-2012-05-428896 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1182/blood-2012-05-428896 Verlag, kostenfrei, Volltext: http://www.bloodjournal.org/content/120/23/4609 
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| Verfasserangaben: | Enrico Tiacci, Claudia Döring, Verena Brune, Carel J.M. van Noesel, Wolfram Klapper, Gunhild Mechtersheimer, Brunangelo Falini, Ralf Küppers, and Martin-Leo Hansmann |
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| 245 | 1 | 0 | |a Analyzing primary Hodgkin and Reed-Sternberg cells to capture the molecular and cellular pathogenesis of classical Hodgkin lymphoma |c Enrico Tiacci, Claudia Döring, Verena Brune, Carel J.M. van Noesel, Wolfram Klapper, Gunhild Mechtersheimer, Brunangelo Falini, Ralf Küppers, and Martin-Leo Hansmann |
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| 520 | |a The pathogenesis of classical Hodgkin lymphoma (cHL), the most common lymphoma in the young, is still enigmatic, largely because its Hodgkin and Reed-Sternberg (HRS) tumor cells are rare in the involved lymph node and therefore difficult to analyze. Here, by overcoming this technical challenge and performing, for the first time, a genome-wide transcriptional analysis of microdissected HRS cells compared with other B-cell lymphomas, cHL lines, and normal B-cell subsets, we show that they differ extensively from the usually studied cHL cell lines, that the lost B-cell identity of cHLs is not linked to the acquisition of a plasma cell-like gene expression program, and that Epstein-Barr virus infection of HRS cells has a minor transcriptional influence on the established cHL clone. Moreover, although cHL appears a distinct lymphoma entity overall, HRS cells of its histologic subtypes diverged in their similarity to other related lymphomas. Unexpectedly, we identified 2 molecular subgroups of cHL associated with differential strengths of the transcription factor activity of the NOTCH1, MYC, and IRF4 proto-oncogenes. Finally, HRS cells display deregulated expression of several genes potentially highly relevant to lymphoma pathogenesis, including silencing of the apoptosis-inducer BIK and of INPP5D, an inhibitor of the PI3K-driven oncogenic pathway. | ||
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