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@ARTICLE{DettmerMonaco:278643,
author = {V. Dettmer-Monaco and K. Weißert and S. Ammann and G.
Monaco and L. Lei and L. Gräßel$^*$ and M. Rhiel and J.
Rositzka and M. M. Kaufmann and K. Geiger and G. Andrieux
and J. Lao and G. Thoulass and C. Schell and M. Börries$^*$
and A. L. Illert$^*$ and T. I. Cornu and S. Ehl and P.
Aichele and T. Cathomen},
title = {{G}ene editing of hematopoietic stem cells restores {T}
cell response in familial hemophagocytic
lymphohistiocytosis.},
journal = {The journal of allergy and clinical immunology},
volume = {153},
number = {1},
issn = {0091-6749},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {DKFZ-2023-01687},
pages = {243-255.e14},
year = {2024},
note = {2024 Jan;153(1):243-255.e14},
abstract = {Hemophagocytic lymphohistiocytosis (HLH) is a
hyperinflammatory disorder characterized by a
life-threatening cytokine storm and immunopathology.
Familial HLH type 3 (FHL3) accounts for $∼30\%$ of all
inborn HLH cases worldwide. It is caused by mutations in the
UNC13D gene, which result in impaired degranulation of
cytotoxic vesicles and hence compromised T and NK
cell-mediated killing. Current treatment protocols,
including allogeneic hematopoietic stem cell (HSC)
transplantation, still show high mortality.We sought to
develop and evaluate a curative genome editing strategy in
the preclinical FHL3 Jinx mouse model. Jinx mice harbor a
cryptic splice donor site (cSD) in Unc13d intron 26 and
develop clinical symptoms of human FHL3 upon infection with
lymphocytic choriomeningitis virus (LCMV).We employed
CRISPR-Cas technology to delete the disease-underlying
mutation in HSCs, and transplanted Unc13d-edited stem cells
into busulfan-conditioned Jinx recipient mice. Safety
studies included extensive genotyping and CAST-Seq based
off-target analyses. Cure from HLH predisposition was
assessed by LCMV infection.Hematopoietic cells isolated from
transplanted mice revealed efficient gene editing $(>95\%),$
polyclonality of the T cell receptor repertoire, and neither
signs of off-target effects nor leukemogenesis. Unc13d
transcription levels of edited and wildtype cells were
comparable. While LCMV challenge resulted in acute HLH in
Jinx mice transplanted with mock-edited HSCs, Jinx mice
grafted with Unc13d-edited cells showed rapid virus
clearance and protection from HLH.Our study demonstrates
that transplantation of CRISPR-Cas edited HSCs supports the
development of a functional polyclonal T cell response in
the absence of genotoxicity-associated clonal outgrowth.},
keywords = {CAST-Seq (Other) / CRISPR-Cas (Other) / T cell repertoire
(Other) / autologous stem cell transplantation (Other) /
gene therapy (Other) / genome editing (Other) / genotoxicity
(Other) / hemophagocytic lymphohistiocytosis (Other) /
hyperinflammation (Other)},
cin = {FR01},
ddc = {610},
cid = {I:(DE-He78)FR01-20160331},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37595758},
doi = {10.1016/j.jaci.2023.08.003},
url = {https://inrepo02.dkfz.de/record/278643},
}