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@ARTICLE{Berning:896717,
author = {Berning, Lena and Schlütermann, David and Friedrich,
Annabelle and Berleth, Niklas and Sun, Yadong and Wu,
Wenxian and Mendiburo, María José and Deitersen, Jana and
Brass, Hannah and Skowron, Margaretha A. and Hoffmann,
Michèle J. and Niegisch, Günter and Pietruszka, Jörg and
Stork, Björn},
title = {{P}rodigiosin {S}ensitizes {S}ensitive and {R}esistant
{U}rothelial {C}arcinoma {C}ells to {C}isplatin {T}reatment},
journal = {Molecules},
volume = {26},
number = {5},
issn = {1420-3049},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2021-03550},
pages = {1294 -},
year = {2021},
abstract = {Cisplatin-based treatment is the standard of care therapy
for urothelial carcinomas. However, complex cisplatin
resistance mechanisms limit the success of this approach.
Both apoptosis and autophagy have been shown to contribute
to this resistance. Prodigiosin, a secondary metabolite from
various bacteria, exerts different biological activities
including the modulation of these two cellular stress
response pathways. We analyzed the effect of prodigiosin on
protein levels of different autophagy- and apoptosis-related
proteins in cisplatin-sensitive and -resistant urothelial
carcinoma cells (UCCs). Furthermore, we investigated the
effect on cell viability of prodigiosin alone or in
combination with cisplatin. We made use of four different
pairs of cisplatin-sensitive and -resistant UCCs. We found
that prodigiosin blocked autophagy in UCCs and re-sensitized
cisplatin-resistant cells to apoptotic cell death.
Furthermore, we found that prodigiosin is a potent
anticancer agent with nanomolar IC50 values in all tested
UCCs. In combination studies, we observed that prodigiosin
sensitized both cisplatin-sensitive and -resistant
urothelial carcinoma cell lines to cisplatin treatment with
synergistic effects in most tested cell lines. These effects
of prodigiosin are at least partially mediated by altering
lysosomal function, since we detected reduced activities of
cathepsin B and L. We propose that prodigiosin is a
promising candidate for the therapy of cisplatin-resistant
urothelial carcinomas, either as a single agent or in
combinatory therapeutic approaches},
cin = {IBOC / IBG-1},
ddc = {540},
cid = {I:(DE-Juel1)IBOC-20090406 / I:(DE-Juel1)IBG-1-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)16},
pubmed = {33673611},
UT = {WOS:000628431800001},
doi = {10.3390/molecules26051294},
url = {https://juser.fz-juelich.de/record/896717},
}