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@ARTICLE{Yousuf:276389,
author = {S. Yousuf and M. Qiu and L. V. v. Voithenberg$^*$ and J.
Hulkkonen and I. Macinkovic and A. R. Schulz and D. Hartmann
and F. Mueller$^*$ and M. Mijatovic and D. Ibberson and K.
T. AlHalabi and J. Hetzer$^*$ and S. Anders and B.
Brüne$^*$ and H. E. Mei and C. D. Imbusch$^*$ and B.
Brors$^*$ and M. Heikenwälder$^*$ and M. M. Gaida and M. W.
Büchler and A. Weigert$^*$ and T. Hackert and S. Roth},
title = {{S}patially resolved multi-omics single-cell analyses
inform mechanisms of immune-dysfunction in pancreatic
cancer.},
journal = {Gastroenterology},
volume = {165},
number = {4},
issn = {0016-5085},
address = {Philadelphia, Pa. [u.a.]},
publisher = {Saunders},
reportid = {DKFZ-2023-01086},
pages = {891-908.e14},
year = {2023},
note = {2023 Oct;165(4):891-908.e14},
abstract = {As pancreatic ductal adenocarcinoma (PDAC) continues to be
recalcitrant to therapeutic interventions including poor
response to immunotherapy, albeit effective in other solid
malignancies, a more nuanced understanding of the immune
microenvironment in PDAC is urgently needed. We aimed to
unveil a detailed view of the immune micromilieu in PDAC
using a spatially-resolved multimodal single cell
approach.We applied single cell RNA sequencing, spatial
transcriptomics, multiplex immunohistochemistry and mass
cytometry to profile the immune compartment in treatment
naive PDAC tumors and matched adjacent normal pancreatic
tissue, as well as in the systemic circulation. We
determined prognostic associations of immune signatures, and
performed a meta-analysis of the immune microenvironment in
PDAC and lung adenocarcinoma (LUAD) on single-cell level.We
provide a spatially-resolved fine map of the immune
landscape in PDAC. We substantiate the exhausted phenotype
of CD8 T cells and immunosuppressive features of myeloid
cells, and highlight immune subsets with potentially
underappreciated roles in PDAC, that diverge from immune
populations within adjacent normal areas, particularly CD4 T
cell subsets and NKT cells that are terminally exhausted and
acquire a regulatory phenotype. Differential analysis of
immune phenotypes in PDAC and LUAD revealed the presence of
extraordinarily immunosuppressive subtypes in PDAC, along
with a distinctive immune checkpoint composition.Our study
sheds light on the multilayered immune dysfunction in PDAC
and presents a holistic view of the immune landscape in PDAC
and LUAD, providing a comprehensive resource for functional
studies and the exploration of therapeutically actionable
targets in PDAC.},
keywords = {lung cancer (Other) / pancreatic cancer (Other) / single
cell multi-omics (Other) / tumor immunology (Other)},
cin = {B330 / F180 / FM01},
ddc = {610},
cid = {I:(DE-He78)B330-20160331 / I:(DE-He78)F180-20160331 /
I:(DE-He78)FM01-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37263303},
doi = {10.1053/j.gastro.2023.05.036},
url = {https://inrepo02.dkfz.de/record/276389},
}