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@ARTICLE{PierzynskaMach:285674,
author = {A. Pierzynska-Mach and C. Czada and C. Vogel and E. Gwosch
and X. Osswald and D. Bartoschek and A. Diaspro and F.
Kappes and E. Ferrando-May$^*$},
title = {{DEK} oncoprotein participates in heterochromatin
replication via {SUMO}-dependent nuclear bodies.},
journal = {Journal of cell science},
volume = {136},
number = {23},
issn = {0370-2952},
address = {Cambridge},
publisher = {Company of Biologists Limited},
reportid = {DKFZ-2023-02496},
pages = {jcs261329},
year = {2023},
note = {#LA:W650# / 2023 Dec 1;136(23):jcs261329},
abstract = {The correct inheritance of chromatin structure is key for
maintaining genome function and cell identity and preventing
cellular transformation. DEK, a conserved non-histone
chromatin protein, has recognized tumor-promoting
properties, its overexpression being associated with poor
prognosis in various cancer types. At the cellular level,
DEK displays pleiotropic functions, influencing
differentiation, apoptosis, and stemness, but a
characteristic oncogenic mechanism has remained elusive.
Here we report the identification of DEK bodies, focal
assemblies of DEK regularly occurring at specific, yet
unidentified sites of heterochromatin replication
exclusively in late S-phase. In these bodies, DEK localizes
in direct proximity to active replisomes in agreement with a
function in the early maturation of heterochromatin. A
high-throughput siRNA screen, supported by mutational and
biochemical analyses, identifies SUMO as one regulator of
DEK body formation, linking DEK to the complex SUMO protein
network that controls chromatin states and cell fate. This
work combines and refines our previous data on DEK as a
factor essential for heterochromatin integrity and
facilitating replication under stress and delineates an
avenue of further study for unraveling DEK´s contribution
to cancer development.},
keywords = {Breast cancer (Other) / Histone modification (Other) /
Oncogene (Other) / Replication stress (Other) / SiRNA screen
(Other) / Superresolution microscopy (Other)},
cin = {W650},
ddc = {570},
cid = {I:(DE-He78)W650-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37997922},
doi = {10.1242/jcs.261329},
url = {https://inrepo02.dkfz.de/record/285674},
}