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@ARTICLE{Fischer:306581,
author = {J. C. Fischer and S. Göttert and M. Giller and P. Heinrich
and K. Fan and O. Khalid and C. N. Walther and M. Drießlein
and S. M. Nefzger and G. Eisenkolb and V. R. Timnik and S.
Jarosch and L. Klostermeier and T. Engleitner and N.
Strieder and C. Gebhard and S. Diederich and N. A. Schmid
and L. Lansink Rotgerink and L. Joachim and S. Ghimire and
E. Vonbrunn and M. Büttner-Herold and M. Remke$^*$ and K.
Steiger$^*$ and R. Öllinger and R. Rad$^*$ and D. Wolff and
M. Feuerer and P. Hoffmann and M. Edinger and M. Rehli and
M. Tschurtschenthaler$^*$ and O. Kepp and G. Kroemer and E.
Thiele Orberg and S. E. Combs$^*$ and W. Herr and F.
Bassermann$^*$ and D. H. Busch and E. Holler and S.
Heidegger and H. Poeck},
title = {{T}issue-adapted {T}regs harness inflammatory signals to
promote intestinal repair from therapy-related injury.},
journal = {Signal transduction and targeted therapy},
volume = {10},
number = {1},
issn = {2095-9907},
address = {London},
publisher = {Macmillan Publishers, part of Springer Nature},
reportid = {DKFZ-2025-02622},
pages = {384},
year = {2025},
abstract = {Intestinal stem cells (ISCs) promote tissue repair after
genotoxic or immune-mediated injury. However, ISCs are
particularly sensitive to various stressors and primary
targets of overwhelming immune responses, such as interferon
γ (IFNγ)-mediated killing. In mouse models of radiation
therapy-induced gut damage and in biopsies from patients who
underwent allogeneic hematopoietic stem cell
transplantation, we observed IFNγ expression by intestinal
Treg cells. Treg cells leverage combined IFNγ and
interleukin 10 (IL-10) stimulation of ISCs to nurture the
growth of intestinal organoids through the activation of the
mTORC1 and Myc pathways. Similarly, Treg cells or the
combined addition of recombinant IFNγ and IL-10 promoted
the regeneration of organoids after irradiation, and both
cytokines were essential for ensuring epithelial
regeneration following acute intestinal tissue injury in
vivo. The exposure of organoids to growth factor-free
culture conditions revealed distinct EGF-like properties of
IFNγ and Wnt-like properties of IL-10. While IFNγ rapidly
induced epithelial proliferation, it depleted the pool of
ISCs in vitro. Only the combination of IFNγ and IL-10 led
to epithelial proliferation and organoid growth while
simultaneously ensuring ISC maintenance over time. Our
results reveal a context-dependent role of inflammatory
signaling in ISCs, through which Treg cells promote
epithelial repair following therapy-induced injury.},
keywords = {Animals / T-Lymphocytes, Regulatory: immunology /
T-Lymphocytes, Regulatory: pathology / Mice / Humans /
Interferon-gamma: genetics / Interferon-gamma: immunology /
Interleukin-10: genetics / Interleukin-10: immunology /
Intestines: immunology / Intestines: pathology / Intestines:
radiation effects / Intestines: injuries / Organoids:
immunology / Inflammation: immunology / Inflammation:
pathology / Inflammation: genetics / Intestinal Mucosa:
immunology / Intestinal Mucosa: pathology / Hematopoietic
Stem Cell Transplantation / Stem Cells: immunology / Stem
Cells: pathology / Interferon-gamma (NLM Chemicals) /
Interleukin-10 (NLM Chemicals) / IL10 protein, human (NLM
Chemicals)},
cin = {MU01},
ddc = {610},
cid = {I:(DE-He78)MU01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41290566},
doi = {10.1038/s41392-025-02476-5},
url = {https://inrepo02.dkfz.de/record/306581},
}