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@ARTICLE{Wyrich:282680,
author = {M. Wyrich and H. Ohlig and M. Wessolly$^*$ and E. Mairinger
and J. Steinborn and L. Brcic and B. Hegedus and T. Hager
and K. Greimelmaier and J. Wohlschlaeger and F.
Mairinger$^*$ and S. Borchert$^*$},
title = {{I}nduction of metallothionein expression by
supplementation of zinc induces resistance against
platinum-based treatment in malignant pleural mesothelioma},
journal = {Translational cancer research},
volume = {12},
number = {8},
issn = {2218-676X},
address = {Shatin},
publisher = {AME Publishing Company},
reportid = {DKFZ-2023-01826},
pages = {1929 - 1936},
year = {2023},
abstract = {Background: Malignant pleural mesothelioma (MPM) is an
aggressive tumor with a dismal prognosis. Currently,
multimodality treatment including chemotherapy with
cisplatin or carboplatin in combination with pemetrexed
offers the best options. Detoxification of heavy metals in
the cell by metallothioneins (MT) is associated with early
failure to platin-based chemotherapy. The induction of MTs
gene expression or its enzyme results in saturation by
exposure to metal ions such as zinc or cadmium. Its
therapeutically effect is still not analyzed in depth.
Methods: In our study, we investigated three MPM cell lines
and one fibroblast cell line in the course of cisplatin
treatment and supplementation of zinc. Cell state analyses
via an enzyme-activity based assay were performed. With
this, we were able to analyze apoptosis, necrosis and
viability of cells. Additionally, we tested treated cells
for changes in metallothionein IIA (MT2A) expression by
using quantitative realtime polymerase chain reaction.
Results: Zinc supplementation induces gene expression of
MT2A. Overall, a zinc dose-dependent induction of apoptosis
under platin-based treatment could be observed. This effect
could be verified in all analyzed cell lines in varying
intensity. Conclusions: MT expression is induced by zinc in
a dose-dependent manner and inhibits a successful cisplatin
therapy. Therefore, heavy metal exposure during cisplatin
therapy, e.g., via cigarette smoke, might be an important
factor. This should be considered in further therapeutic
approaches.},
cin = {ED01},
ddc = {610},
cid = {I:(DE-He78)ED01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
doi = {10.21037/tcr-22-2651},
url = {https://inrepo02.dkfz.de/record/282680},
}