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Arabzade, Amir; Zhao, Yanhua; Varadharajan, Srinidhi; Chen, Hsiao-Chi; Jessa, Selin; Rivas, Bryan; Stuckert, Austin J; Solis, Minerva; Kardian, Alisha; Tlais, Dana; Golbourn, Brian J; Stanton, Ann-Catherine J; Chan, Yuen San; Olson, Calla; Karlin, Kristen L; Kong, Kathleen; Kupp, Robert; Hu, Baoli; Injac, Sarah G; Ngo, Madeline; Wang, Peter R; De León, Luz A; Sahm, Felix; Kawauchi, Daisuke; Pfister, Stefan M; Lin, Charles Y; Hodges, H Courtney; Singh, Irtisha; Westbrook, Thomas F; Chintagumpala, Murali M; Blaney, Susan M; Parsons, Donald W; Pajtler, Kristian W; Agnihotri, Sameer; Gilbertson, Richard J; Yi, Joanna; Jabado, Nada; Kleinman, Claudia L; Bertrand, Kelsey C; Deneen, Benjamin; Mack, Stephen C
Cancer discovery, 09/2021, Letnik: 11, Številka: 9Journal Article
More than 60% of supratentorial ependymomas harbor a (ZR ) gene fusion (formerly ). To study the biology of ZR , we developed an autochthonous mouse tumor model using electroporation (IUE) of the embryonic mouse brain. Integrative epigenomic and transcriptomic mapping was performed on IUE-driven ZR tumors by CUT&RUN, chromatin immunoprecipitation sequencing, assay for transposase-accessible chromatin sequencing, and RNA sequencing and compared with human ZR -driven ependymoma. In addition to direct canonical NFκB pathway activation, ZR dictates a neoplastic transcriptional program and binds to thousands of unique sites across the genome that are enriched with PLAGL family transcription factor (TF) motifs. ZR activates gene expression programs through recruitment of transcriptional coactivators (Brd4, Ep300, Cbp, Pol2) that are amenable to pharmacologic inhibition. Downstream ZR target genes converge on developmental programs marked by PLAGL TF proteins, and activate neoplastic programs enriched in Mapk, focal adhesion, and gene imprinting networks. SIGNIFICANCE: Ependymomas are aggressive brain tumors. Although drivers of supratentorial ependymoma ( - and -associated gene fusions) have been discovered, their functions remain unclear. Our study investigates the biology of -driven ependymoma, specifically mechanisms of transcriptional deregulation and direct downstream gene networks that may be leveraged for potential therapeutic testing. .
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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