Abstract
Splenic marginal zone lymphoma (SMZL) is a B-cell neoplasm whose molecular pathogenesis remains fundamentally unexplained, requiring more precise diagnostic markers. Previous molecular studies have revealed 7q loss and mutations of nuclear factor κB (NF-κB), B-cell receptor (BCR) and Notch signalling genes. We performed whole-exome sequencing in a series of SMZL cases. Results confirmed that SMZL is an entity distinct from other low-grade B-cell lymphomas, and identified mutations in multiple genes involved in marginal zone development, and others involved in NF-κB, BCR, chromatin remodelling and the cytoskeleton.
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Acknowledgements
We thank the Biobank of HUMV–IFIMAV (Santander, Spain) and the biobank of Hospital de León (BEOCyL) for providing biological samples. This study was supported by grants from the Ministerio de Sanidad y Consumo (RTICC RD06/0020/0107, RD12/0036/0060, PI 12/1682), the Ministerio de Ciencia e Innovación (SAF2008–03871), the Asociación Española Contra el Cáncer (AECC), Spain, and the Nelia et Amadeo Barletta Foundation (Lausanne, Switzerland).
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Martínez, N., Almaraz, C., Vaqué, J. et al. Whole-exome sequencing in splenic marginal zone lymphoma reveals mutations in genes involved in marginal zone differentiation. Leukemia 28, 1334–1340 (2014). https://doi.org/10.1038/leu.2013.365
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DOI: https://doi.org/10.1038/leu.2013.365
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