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@ARTICLE{Wolf:268464,
author = {Wolf, Christine and Lim, Ee Lyn and Mokhtari, Mohammad and
Kind, Barbara and Odainic, Alexandru and Lara-Villacanas,
Eusebia and Koss, Sarah and Mages, Simon and Menzel,
Katharina and Engel, Kerstin and Dückers, Gregor and
Bernbeck, Benedikt and Schneider, Dominik T and Siepermann,
Kathrin and Niehues, Tim and Goetzke, Carl Christoph and
Durek, Pawel and Minden, Kirsten and Dörner, Thomas and
Stittrich, Anna and Szelinski, Franziska and Guerra,
Gabriela Maria and Massoud, Mona and Bieringer, Markus and
de Oliveira Mann, Carina C and Beltrán, Eduardo and
Kallinich, Tilmann and Mashreghi, Mir-Farzin and Schmidt,
Susanne V and Latz, Eicke and Klughammer, Johanna and Majer,
Olivia and Lee-Kirsch, Min Ae},
title = {{UNC}93{B}1 variants underlie {TLR}7-dependent
autoimmunity.},
journal = {Science immunology},
volume = {9},
number = {92},
issn = {2470-9468},
address = {Washington, DC},
publisher = {AAAS},
reportid = {DZNE-2024-00216},
pages = {eadi9769},
year = {2024},
abstract = {UNC93B1 is critical for trafficking and function of nucleic
acid-sensing Toll-like receptors (TLRs) TLR3, TLR7, TLR8,
and TLR9, which are essential for antiviral immunity.
Overactive TLR7 signaling induced by recognition of
self-nucleic acids has been implicated in systemic lupus
erythematosus (SLE). Here, we report UNC93B1 variants (E92G
and R336L) in four patients with early-onset SLE. Patient
cells or mouse macrophages carrying the UNC93B1 variants
produced high amounts of TNF-α and IL-6 and upon
stimulation with TLR7/TLR8 agonist, but not with TLR3 or
TLR9 agonists. E92G causes UNC93B1 protein instability and
reduced interaction with TLR7, leading to selective TLR7
hyperactivation with constitutive type I IFN signaling.
Thus, UNC93B1 regulates TLR subtype-specific mechanisms of
ligand recognition. Our findings establish a pivotal role
for UNC93B1 in TLR7-dependent autoimmunity and highlight the
therapeutic potential of targeting TLR7 in SLE.},
keywords = {Mice / Animals / Humans / Toll-Like Receptor 7: genetics /
Autoimmunity: genetics / Toll-Like Receptor 9: metabolism /
Toll-Like Receptor 8 / Toll-Like Receptor 3: metabolism /
Lupus Erythematosus, Systemic: genetics / Membrane Transport
Proteins / Toll-Like Receptor 7 (NLM Chemicals) / Toll-Like
Receptor 9 (NLM Chemicals) / Toll-Like Receptor 8 (NLM
Chemicals) / Toll-Like Receptor 3 (NLM Chemicals) / TLR7
protein, human (NLM Chemicals) / UNC93B1 protein, human (NLM
Chemicals) / Membrane Transport Proteins (NLM Chemicals) /
UNC93B1 protein, mouse (NLM Chemicals)},
cin = {AG Latz ; AG Latz},
ddc = {610},
cid = {I:(DE-2719)1013024},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38207055},
doi = {10.1126/sciimmunol.adi9769},
url = {https://pub.dzne.de/record/268464},
}