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- W2967192425 abstract "ABSTRACT 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 co-regulated adjacent genes. Among target genes upregulated by this process, we found members of the NOTCH, NFkB, mTOR1 signaling and p53 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 indicates that aberrant chromatin activation is a unifying feature underlying the malignant plasma cell phenotype." @default.
- W2967192425 created "2019-08-22" @default.
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- W2967192425 date "2019-08-20" @default.
- W2967192425 modified "2023-10-18" @default.
- W2967192425 title "Chromatin activation as a unifying principle underlying pathogenic mechanisms in multiple myeloma" @default.
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- W2967192425 doi "https://doi.org/10.1101/740027" @default.
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