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@ARTICLE{Stefanova:278397,
author = {M. E. Stefanova and E. Ing-Simmons and S. Stefanov and I.
Flyamer and H. Dorado Garcia and R. Schöpflin and A. G.
Henssen$^*$ and J. M. Vaquerizas and S. Mundlos},
title = {{D}oxorubicin {C}hanges the {S}patial {O}rganization of the
{G}enome around {A}ctive {P}romoters.},
journal = {Cells},
volume = {12},
number = {15},
issn = {2073-4409},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2023-01631},
pages = {2001},
year = {2023},
abstract = {In this study, we delve into the impact of genotoxic
anticancer drug treatment on the chromatin structure of
human cells, with a particular focus on the effects of
doxorubicin. Using Hi-C, ChIP-seq, and RNA-seq, we explore
the changes in chromatin architecture brought about by
doxorubicin and ICRF193. Our results indicate that
physiologically relevant doses of doxorubicin lead to a
local reduction in Hi-C interactions in certain genomic
regions that contain active promoters, with changes in
chromatin architecture occurring independently of Top2
inhibition, cell cycle arrest, and differential gene
expression. Inside the regions with decreased interactions,
we detected redistribution of RAD21 around the peaks of
H3K27 acetylation. Our study also revealed a common
structural pattern in the regions with altered architecture,
characterized by two large domains separated from each
other. Additionally, doxorubicin was found to increase CTCF
binding in H3K27 acetylated regions. Furthermore, we
discovered that Top2-dependent chemotherapy causes changes
in the distance decay of Hi-C contacts, which are driven by
direct and indirect inhibitors. Our proposed model suggests
that doxorubicin-induced DSBs cause cohesin redistribution,
which leads to increased insulation on actively transcribed
TAD boundaries. Our findings underscore the significant
impact of genotoxic anticancer treatment on the chromatin
structure of the human genome.},
keywords = {DSBs (Other) / Hi-C (Other) / Top2 (Other) / chemotherapy
(Other) / doxorubicin (Other) / promoters (Other)},
cin = {BE01},
ddc = {570},
cid = {I:(DE-He78)BE01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37566080},
pmc = {pmc:PMC10417312},
doi = {10.3390/cells12152001},
url = {https://inrepo02.dkfz.de/record/278397},
}