The Genomic Atlas of Breast Cancer — the non-coding theme

Update News

  • GABC update 2020.06.15
  • GABC update 2019.03.20
  • GABC online 2018.08.09
  • Data collection 2018.04.09

About Us

  • Steven Xi Chen:
    steven.chen@miami.edu
  • Yunpeng Zhang:
    YXZ1418@med.miami.edu
  • Peng Wang:
    wpgqy@163.com
  • Shangwei Ning:
    ningsw@ems.hrbmu.edu.cn
  • Xia Li:
    lixia@hrbmu.edu.cn

Detail


Chr chr21
start 40383083
end 40385358
lncRNA name DSCAM-AS1
entrez id 100506492
hgnc id HGNC:40197
ensg id ENSG00000235123
refseq id NR_038896
methods RNA-seq, qRT-PCR, Western blot, in vitro knockdown, RNAi
regulated up-regulated
function description By the analysis of H3K27ac enrichment in hormone-deprived MCF-7 cells, we defined a set of Super Enhancers (SEs) occupied by apoERa, including one mapped in proximity of the DSCAM-AS1 lncRNA gene.This represents a paradigm of apoERa activity since its expression is largely unaffected by estrogenic treatment,despite the fact that E2 increases ERa binding on DSCAM-AS1 promoter. We validated the enrichment of apoERa, p300, GATA3, FoxM1 and CTCF at both DSCAM-AS1 TSS and at its associated SE by ChIP-qPCR. Furthermore, by analyzing MCF-7 ChIA-PET data and by 3C assays, we confirmed long range chromatin interaction between the SE and the DSCAM-AS1 TSS. Interestingly, CTCF and p300 binding showed an enrichment in hormone-depleted medium and in the presence of ERa, elucidating the dynamics of the estrogen-independent regulation of DSCAM-AS1 expression.The most significant down-regulated lncRNAs were RP11-68L18.1, MIR9-3HG, and LINC01016, whereas NKILA, AC144831.1, and LINC00657 were the most significant up-regulated lncRNAs
pubmed id 29462945
year 2018
title Luminal lncRNAs Regulation by ERa-Controlled Enhancers in a Ligand-Independent Manner in Breast Cancer Cells.
drug X
circulating X
survival X

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