TY - JOUR A1 - Ordoñez, Raquel A1 - Kulis, Marta A1 - Russiñol, Nuria A1 - Chapaprieta, Vicente A1 - Carrasco-Leon, Arantxa A1 - García-Torre, Beatriz A1 - Charalampopoulou, Stella A1 - Clot, Guillem A1 - Beekman, Renée A1 - Meydan, Cem A1 - Duran-Ferrer, Martí A1 - Verdaguer-Dot, Núria A1 - Vilarrasa-Blasi, Roser A1 - Soler-Vila, Paula A1 - Garate, Leire A1 - Miranda, Estíbaliz A1 - San José-Enériz, Edurne A1 - Rodriguez-Madoz, Juan R. A1 - Ezponda, Teresa A1 - Martínez-Turrilas, Rebeca A1 - Vilas-Zornoza, Amaia A1 - Lara-Astiaso, David A1 - Dupéré-Richer, Daphné A1 - Martens, Joost H.A. A1 - El-Omri, Halima A1 - Taha, Ruba Y. A1 - Calasanz, Maria J. A1 - Paiva, Bruno A1 - San Miguel, Jesus A1 - Flicek, Paul A1 - Gut, Ivo A1 - Melnick, Ari A1 - Mitsiades, Constantine S. A1 - Licht, Jonathan D. A1 - Campo, Elias A1 - Stunnenberg, Hendrik G. A1 - Agirre, Xabier A1 - Prosper, Felipe A1 - Martin-Subero, Jose I. T1 - Chromatin activation as a unifying principle underlying pathogenic mechanisms in multiple myeloma Y1 - 2020/09/01 JF - Genome Research JO - Genome Research SP - 1217 EP - 1227 DO - 10.1101/gr.265520.120 VL - 30 IS - 9 UR - http://genome.cshlp.org/content/30/9/1217.abstract N2 - Multiple myeloma (MM) is a plasma cell neoplasm associated with a broad variety of genetic lesions. In spite of this genetic heterogeneity, MMs share a characteristic malignant phenotype whose underlying molecular basis remains poorly characterized. In the present study, we examined plasma cells from MM using a multi-epigenomics approach and demonstrated that, when compared to normal B cells, malignant plasma cells showed an extensive activation of regulatory elements, in part affecting coregulated adjacent genes. Among target genes up-regulated by this process, we found members of the NOTCH, NF-kB, MTOR signaling, and TP53 signaling pathways. Other activated genes included sets involved in osteoblast differentiation and response to oxidative stress, all of which have been shown to be associated with the MM phenotype and clinical behavior. We functionally characterized MM-specific active distant enhancers controlling the expression of thioredoxin (TXN), a major regulator of cellular redox status and, in addition, identified PRDM5 as a novel essential gene for MM. Collectively, our data indicate that aberrant chromatin activation is a unifying feature underlying the malignant plasma cell phenotype. ER -