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Sökning: WFRF:(Bartsch Deniz)

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1.
  • Frank, Stefan, et al. (författare)
  • yylncT Defines a Class of Divergently Transcribed lncRNAs and Safeguards the T-mediated Mesodermal Commitment of Human PSCs.
  • 2019
  • Ingår i: Cell stem cell. - : Elsevier BV. - 1875-9777 .- 1934-5909. ; 24:2
  • Tidskriftsartikel (refereegranskat)abstract
    • Human protein-coding genes are often accompanied by divergently transcribed non-coding RNAs whose functions, especially in cell fate decisions, are poorly understood. Using an hESC-based cardiac differentiation model, we define a class of divergent lncRNAs, termed yin yang lncRNAs (yylncRNAs), that mirror the cell-type-specific expression pattern of their protein-coding counterparts. yylncRNAs arepreferentially encoded from the genomic loci ofkey developmental cell fate regulators. Most yylncRNAs are spliced polyadenylated transcripts showing comparable expression patterns invivo inmouse and in human embryos. Signifying theirdevelopmental function, the key mesoderm specifier BRACHYURY (T) is accompanied by yylncT, whichlocalizes to the active T locus during mesoderm commitment. yylncT binds the de novo DNA methyltransferase DNMT3B, and its transcript is required for activation of the T locus, with yylncTdepletion specifically abolishing mesodermal commitment. Collectively, we report a lncRNA-mediated regulatory layer safeguarding embryonic cell fate transitions.
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2.
  • Mondal, Tanmoy, 1981, et al. (författare)
  • Sense-antisense lncRNA pair encoded by locus 6p22.3 determines neuroblastoma susceptibility via the USP36-CHD7-SOX9 regulatory axis
  • 2018
  • Ingår i: Cancer Cell. - : Elsevier BV. - 1535-6108 .- 1878-3686. ; 33:3
  • Tidskriftsartikel (refereegranskat)abstract
    • Trait-associated loci often map to genomic regions encoding long noncoding RNAs (lncRNAs), but the role of these lncRNAs in disease etiology is largely unexplored. We show that a pair of sense/antisense lncRNA (6p22lncRNAs) encoded by CASC15 and NBAT1 located at the neuroblastoma (NB) risk-associated 6p22.3 locus are tumor suppressors and show reduced expression in high-risk NBs. Loss of functional synergy between 6p22lncRNAs results in an undifferentiated state that is maintained by a gene-regulatory network, including SOX9 located on 17q, a region frequently gained in NB. 6p22lncRNAs regulate SOX9 expression by controlling CHD7 stability via modulating the cellular localization of USP36, encoded by another 17q gene. This regulatory nexus between 6p22.3 and 17q regions may lead to potential NB treatment strategies.
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