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@ARTICLE{Neumeyer:143280,
author = {S. M. Neumeyer$^*$ and O. Popanda$^*$ and D. Edelmann$^*$
and K. Butterbach$^*$ and C. Toth and W. Roth and H. Bläker
and R. Jiang$^*$ and E. Herpel and C. Jäkel$^*$ and P.
Schmezer$^*$ and L. Jansen$^*$ and E. Alwers$^*$ and A.
Benner$^*$ and B. Burwinkel$^*$ and M. Hoffmeister$^*$ and
H. Brenner$^*$ and J. Chang-Claude$^*$},
title = {{G}enome-wide {DNA} methylation differences according to
oestrogen receptor beta status in colorectal cancer.},
journal = {Epigenetics},
volume = {14},
number = {5},
issn = {1559-2308},
address = {Austin, Tex.},
publisher = {Landes Bioscience},
reportid = {DKFZ-2019-00878},
pages = {477-493},
year = {2019},
abstract = {Involvement of sex hormones in colorectal cancer (CRC)
development has been linked to oestrogen receptor β (ERβ).
Expression of ERβ is found reduced in tumour tissue and
inversely related to mortality. However, mechanisms are not
well understood. Our study aimed to detect differentially
methylated genes associated with ERβ expression, which
could point to mechanisms by which ERβ could influence risk
and prognosis of CRC. Epigenome-wide DNA methylation
profiling was performed using Illumina HumanMethylation450k
BeadChip arrays in two independent tumour sample sets of CRC
patients recruited in 2003-2010 by the German DACHS study
(discovery cohort n = 917, replication cohort n = 907).
ERβ expression was measured using immunohistochemistry and
scored as negative, moderate and high. Differentially
methylated CpG sites and genomic regions were determined
using limma in the R-package RnBeads. For the comparison of
tumours with moderate/high ERβ versus negative expression,
differentially methylated CpG sites were identified but not
confirmed by replication. Comparing tumours of high with
tumours of negative ERβ expression revealed 2,904
differentially methylated CpG sites of which 403 were
replicated (FDR adjusted p-value<0.05). Replicated CpGs were
annotated to genes such as CD36, HK1 or LRP5. A survival
analysis indicates that 30 of the replicated CpGs are also
associated with overall survival (FDR-adjusted
p-value<0.05). The regional analysis identified 60
differentially methylated promotor regions. The
epigenome-wide analysis identified both novel genes as well
as genes already implicated in CRC. Follow-up mechanistic
studies to better understand the regulatory role of ERβ
could inform potential targets for improving treatment or
prevention of CRC.},
cin = {C020 / B370 / C060 / C070 / L101 / L501},
ddc = {610},
cid = {I:(DE-He78)C020-20160331 / I:(DE-He78)B370-20160331 /
I:(DE-He78)C060-20160331 / I:(DE-He78)C070-20160331 /
I:(DE-He78)L101-20160331 / I:(DE-He78)L501-20160331},
pnm = {313 - Cancer risk factors and prevention (POF3-313)},
pid = {G:(DE-HGF)POF3-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30931802},
doi = {10.1080/15592294.2019.1595998},
url = {https://inrepo02.dkfz.de/record/143280},
}