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Stars Star This? Yes / No Source: Leuk Lymphoma | Posted 1 day ago Prevalence of targetable oncogenic mutations and genomic alterations in Epstein-Barr Virus-associated diffuse large B-cell lymphoma of the elderly

Yazarlar : Gebauer N, Gebauer J, Hardel T et al

Yayın : Leuk Lymphoma

Yayın Yılı : 2014

Pubmed Linki : http://www.docguide.com/prevalence-targetable-oncogenic-mutations-and-genomic-alterations-epstein-barr-virus-associated-diff?tsid=5

Konu : Geriyatrik Hematoloji

Literatür İçeriği :  ABSTRACT Epstein-Barr Virus- (EBV) associated diffuse large B-cell lymphoma (DLBCL) of the elderly constitutes a provisional clinicopathological entity in the current WHO Classification and its genomic features remain sparsely characterized. We investigated a cohort of 26 untreated de novo EBV-positive DLBCL of the elderly by high-resolution array-based comparative genomic profiling and FISH. Moreover, we screened for activating mutations affecting nuclear factor (NF)-kappa B pathway signaling and chromatin remodeling (EZH2, CD79B, CARD11 and MYD88) due to their impact of gene expression signatures and postulated upcoming therapeutic targetability. We identified an overlap between genomic aberrations previously described to be exclusive features of plasmablastic lymphoma (PL), post-transplant lymphoprolierative disorders (PTLD) and DLBCL, respectively, indicating a close cytogenetic relation between these entities. Few mutations affecting CD79B and CARD11 and no MYD88 mutations were detectable hinting at an EBV-mediated activation of NF-kappa B as an alternative to pathologically enforced B-cell receptor signaling in this rare entity.


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