% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Volkmar:301764,
author = {M. Volkmar$^*$ and D. Hoser and C. Lauenstein$^*$ and J.
Rebmann and A. Hotz-Wagenblatt$^*$ and J. H. Rieger$^*$ and
I. Poschke$^*$ and J. Becker$^*$ and A. B. Riemer$^*$ and M.
Sprick$^*$ and A. Trumpp$^*$ and O. Strobel and T.
Blankenstein and G. Willimsky$^*$ and R. Offringa$^*$},
title = {{E}nhanced mutanome analysis towards the induction of
neoepitope-reactive {T}-cell responses for personalized
immunotherapy of pancreatic cancer.},
journal = {Journal for ImmunoTherapy of Cancer},
volume = {13},
number = {6},
issn = {2051-1426},
address = {London},
publisher = {BioMed Central},
reportid = {DKFZ-2025-01144},
pages = {e011802},
year = {2025},
note = {#EA:D200#LA:D200# /},
abstract = {Personalized immunotherapy of pancreatic ductal
adenocarcinoma (PDAC) through T-cell mediated targeting of
tumor-specific, mutanome-encoded neoepitopes may offer new
opportunities to combat this disease, in particular by
countering recurrence after primary tumor resection.
However, the sensitive and accurate calling of somatic
mutations in PDAC tissue samples is compromised by the low
tumor cell content. Moreover, the repertoire of immunogenic
neoepitopes in PDAC is limited due to the low mutational
load of the majority of these tumors.We developed a workflow
involving the combined analysis of next-generation DNA and
RNA sequencing data from matched pairs of primary tumor
samples and patient-derived xenograft models towards the
enhanced detection of driver mutations as well as single
nucleotide variants encoding potentially immunogenic T-cell
neoepitopes. Subsequently, we immunized HLA/human T-cell
receptor (TCR) locus-transgenic mice with synthetic peptides
representing candidate neoepitopes, and molecularly cloned
the genes encoding TCRs targeting these epitopes.Application
of our pipeline resulted in the identification of greater
numbers of non-synonymous mutations encoding candidate
neoepitopes with increased confidence. Furthermore, we
provide proof of concept for the successful isolation of
HLA-restricted TCRs from humanized mice immunized with
different neoepitopes, several of which would not have been
selected based on mutanome analysis of PDAC tissue samples
alone. These TCRs mediate specific T-cell reactivity against
the tumor cells in which the corresponding mutations were
identified.Enhanced mutanome analysis and candidate
neoepitope selection increase the likelihood of identifying
therapeutically relevant neoepitopes, and thereby support
the optimization of personalized immunotherapy for PDAC and
other poorly immunogenic cancers.},
keywords = {Humans / Animals / Pancreatic Neoplasms: genetics /
Pancreatic Neoplasms: immunology / Pancreatic Neoplasms:
therapy / Mice / Precision Medicine: methods /
Immunotherapy: methods / Mutation / T-Lymphocytes:
immunology / Carcinoma, Pancreatic Ductal: immunology /
Carcinoma, Pancreatic Ductal: genetics / Carcinoma,
Pancreatic Ductal: therapy / Mice, Transgenic / Epitopes,
T-Lymphocyte: immunology / Epitopes, T-Lymphocyte: genetics
/ Adoptive cell therapy - ACT (Other) / Gastrointestinal
Cancer (Other) / Immunotherapy (Other) / T cell Receptor -
TCR (Other) / Vaccine (Other) / Epitopes, T-Lymphocyte (NLM
Chemicals)},
cin = {D200 / D410 / A010 / W610},
ddc = {610},
cid = {I:(DE-He78)D200-20160331 / I:(DE-He78)D410-20160331 /
I:(DE-He78)A010-20160331 / I:(DE-He78)W610-20160331},
pnm = {314 - Immunologie und Krebs (POF4-314)},
pid = {G:(DE-HGF)POF4-314},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40461160},
doi = {10.1136/jitc-2025-011802},
url = {https://inrepo02.dkfz.de/record/301764},
}