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@ARTICLE{Faltus:181843,
author = {C. Faltus$^*$ and A. Lahnsteiner and M. Barrdahl$^*$ and Y.
Assenov$^*$ and A. Hüsing$^*$ and O. Bogatyrova$^*$ and M.
Laplana$^*$ and T. S. Johnson$^*$ and T. Muley and M.
Meister and A. Warth and M. Thomas and C. Plass$^*$ and R.
Kaaks$^*$ and A. Risch$^*$},
title = {{I}dentification of {NHLRC}1 as a {N}ovel {AKT} {A}ctivator
from a {L}ung {C}ancer {E}pigenome-{W}ide {A}ssociation
{S}tudy ({EWAS}).},
journal = {International journal of molecular sciences},
volume = {23},
number = {18},
issn = {1422-0067},
address = {Basel},
publisher = {Molecular Diversity Preservation International},
reportid = {DKFZ-2022-02258},
pages = {10699},
year = {2022},
note = {#EA:B370#LA:B370#},
abstract = {Changes in DNA methylation identified by epigenome-wide
association studies (EWAS) have been recently linked to
increased lung cancer risk. However, the cellular effects of
these differentially methylated positions (DMPs) are often
unclear. Therefore, we investigated top differentially
methylated positions identified from an EWAS study. This
included a putative regulatory region of NHLRC1.
Hypomethylation of this gene was recently linked with
decreased survival rates in lung cancer patients.
HumanMethylation450 BeadChip array (450K) analysis was
performed on 66 lung cancer case-control pairs from the
European Prospective Investigation into Cancer and Nutrition
Heidelberg lung cancer EWAS (EPIC HD) cohort. DMPs
identified in these pre-diagnostic blood samples were then
investigated for differential DNA methylation in lung tumor
versus adjacent normal lung tissue from The Cancer Genome
Atlas (TCGA) and replicated in two independent lung tumor
versus adjacent normal tissue replication sets with
MassARRAY. The EPIC HD top hypermethylated DMP cg06646708
was found to be a hypomethylated region in multiple data
sets of lung tumor versus adjacent normal tissue.
Hypomethylation within this region caused increased mRNA
transcription of the closest gene NHLRC1 in lung tumors. In
functional assays, we demonstrate attenuated proliferation,
viability, migration, and invasion upon NHLRC1 knock-down in
lung cancer cells. Furthermore, diminished AKT
phosphorylation at serine 473 causing expression of
pro-apoptotic AKT-repressed genes was detected in these
knock-down experiments. In conclusion, this study
demonstrates the powerful potential for discovery of novel
functional mechanisms in oncogenesis based on EWAS DNA
methylation data. NHLRC1 holds promise as a new prognostic
biomarker for lung cancer survival and prognosis, as well as
a target for novel treatment strategies in lung cancer
patients.},
keywords = {DNA methylation (Other) / EWAS (Other) / NHLRC1 (Other) /
PI3K pathway activation (Other) / lung cancer (Other)},
cin = {B370 / C020},
ddc = {540},
cid = {I:(DE-He78)B370-20160331 / I:(DE-He78)C020-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36142605},
doi = {10.3390/ijms231810699},
url = {https://inrepo02.dkfz.de/record/181843},
}