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@ARTICLE{Stafford:165135,
author = {Stafford, Che A and Gassauer, Alicia-Marie and de Oliveira
Mann, Carina C and Tanzer, Maria C and Fessler, Evelyn and
Wefers, Benedikt and Nagl, Dennis and Kuut, Gunnar and
Sulek, Karolina and Vasilopoulou, Catherine and Schwojer,
Sophia J and Wiest, Andreas and Pfautsch, Marie K and Wurst,
Wolfgang and Yabal, Monica and Fröhlich, Thomas and Mann,
Matthias and Gisch, Nicolas and Jae, Lucas T and Hornung,
Veit},
title = {{P}hosphorylation of muramyl peptides by {NAGK} is required
for {NOD}2 activation.},
journal = {Nature},
volume = {609},
number = {7927},
issn = {0028-0836},
address = {London [u.a.]},
publisher = {Nature Publ. Group},
reportid = {DZNE-2022-01440},
pages = {590 - 596},
year = {2022},
note = {CC BY: https://creativecommons.org/licenses/by/4.0/},
abstract = {Bacterial cell wall components provide various unique
molecular structures that are detected by pattern
recognition receptors (PRRs) of the innate immune system as
non-self. Most bacterial species form a cell wall that
consists of peptidoglycan (PGN), a polymeric structure
comprising alternating amino sugars that form strands
cross-linked by short peptides. Muramyl dipeptide (MDP) has
been well documented as a minimal immunogenic component of
peptidoglycan1-3. MDP is sensed by the cytosolic
nucleotide-binding oligomerization domain-containing protein
24 (NOD2). Upon engagement, it triggers pro-inflammatory
gene expression, and this functionality is of critical
importance in maintaining a healthy intestinal barrier
function5. Here, using a forward genetic screen to identify
factors required for MDP detection, we identified
N-acetylglucosamine kinase (NAGK) as being essential for the
immunostimulatory activity of MDP. NAGK is broadly expressed
in immune cells and has previously been described to
contribute to the hexosamine biosynthetic salvage pathway6.
Mechanistically, NAGK functions upstream of NOD2 by directly
phosphorylating the N-acetylmuramic acid moiety of MDP at
the hydroxyl group of its C6 position, yielding
6-O-phospho-MDP. NAGK-phosphorylated MDP-but not unmodified
MDP-constitutes an agonist for NOD2. Macrophages from mice
deficient in NAGK are completely deficient in MDP sensing.
These results reveal a link between amino sugar metabolism
and innate immunity to bacterial cell walls.},
keywords = {Acetylmuramyl-Alanyl-Isoglutamine: chemistry /
Acetylmuramyl-Alanyl-Isoglutamine: immunology /
Acetylmuramyl-Alanyl-Isoglutamine: metabolism /
Acetylmuramyl-Alanyl-Isoglutamine: pharmacology / Animals /
Bacteria: chemistry / Bacteria: immunology / Cell Wall:
chemistry / Hexosamines: biosynthesis / Immunity, Innate /
Macrophages: enzymology / Macrophages: immunology / Mice /
Nod2 Signaling Adaptor Protein: agonists / Nod2 Signaling
Adaptor Protein: metabolism / Peptidoglycan: chemistry /
Peptidoglycan: immunology / Phosphorylation /
Phosphotransferases (Alcohol Group Acceptor): deficiency /
Phosphotransferases (Alcohol Group Acceptor): genetics /
Phosphotransferases (Alcohol Group Acceptor): metabolism},
cin = {AG Wurst},
ddc = {500},
cid = {I:(DE-2719)1140001},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC9477735},
pubmed = {pmid:36002575},
doi = {10.1038/s41586-022-05125-x},
url = {https://pub.dzne.de/record/165135},
}