SAMHD1 mutations in mantle cell lymphoma are recurrent and confer in vitro resistance to nucleoside analogues
M. M. Bühler, J. Lu, S. Scheinost, F. Nadeu, D. Roos-Weil, M. Hensel, T. Thavayogarajah, H. Moch, M. G. Manz, E. Haralambieva, E. Marques Maggio, S. Bea, E. Gine, E. Campo, O. A. Bernard, W. Huber, T. Zenz
Abstract
The genomic landscape of mantle cell lymphoma (MCL) includes frequent alterations of TP53, ATM, CCND1 and KMT2D. Thus far, the mutational landscape provides little information for treatment stratification. We characterized a cohort of MCL by targeted next generation sequencing and discovered SAMHD1 as a novel recurrently mutated gene (8.5% of investigated cases, 4/47 samples). Furthermore, we provide evidence of in vitro resistance of SAMHD1 mutated patient-derived MCL cells to cytarabine and fludarabine.
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