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@ARTICLE{Koch:272843,
author = {J. Koch and J. Beil$^*$ and S. Berchtold and D. Mönch and
A. Maaß and I. Smirnow and A. Schenk and M. E. Carter and
L. D. Kloker and T. Leibold and P. Renner and M.-H. Dahlke
and U. M. Lauer$^*$},
title = {{E}stablishing a {N}ew {P}latform to {I}nvestigate the
{E}fficacy of {O}ncolytic {V}irotherapy in a {H}uman {E}x
{V}ivo {P}eritoneal {C}arcinomatosis {M}odel.},
journal = {Viruses},
volume = {15},
number = {2},
issn = {1999-4915},
address = {Basel},
publisher = {MDPI},
reportid = {DKFZ-2023-00416},
pages = {363},
year = {2023},
abstract = {Oncolytic virotherapy constitutes a promising treatment
option for many solid cancers, including peritoneal
carcinomatosis (PC), which still represents a terminal stage
of many types of tumors. To date, the in vitro efficacy of
oncolytic viruses is mostly tested in 2D-cultured tumor cell
lines due to the lack of realistic 3D in vitro tumor models.
We have investigated the feasibility of virotherapy as a
treatment option for PC in a human ex vivo peritoneum
co-culture model. Human HT-29 cancer cells stably expressing
marker genes GFP and firefly luciferase (GFP/luc) were
cultured on human peritoneum and infected with two
prototypic oncolytic viruses (GLV-0b347 and MeV-DsRed). Both
viral constructs were able to infect HT-29 cells in
patient-derived peritoneum with high tumor specificity. Over
time, both GFP signal and luciferase activity decreased
substantially, thereby indicating successful virus-induced
oncolysis. Furthermore, immunohistochemistry stainings
showed specific virotherapeutic infections of HT-29 cells
and effective tumor cell lysis in infected co-cultures.
Thus, the PC model established here provides a clinically
relevant screening platform to evaluate the therapeutic
efficacy of virotherapeutic compounds and also to
investigate, in an autologous setting, the immunostimulatory
potential of oncolytic viruses for PC in a unique human
model system superior to standard 2D in vitro models.},
keywords = {ex vivo peritoneal culture model (Other) / oncolytic
measles vaccine virus (Other) / oncolytic vaccinia virus
(Other) / peritoneal carcinomatosis (Other) / virotherapy
(Other)},
cin = {TU01},
ddc = {050},
cid = {I:(DE-He78)TU01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36851574},
doi = {10.3390/v15020363},
url = {https://inrepo02.dkfz.de/record/272843},
}