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Epithelial Cell NOD1/IRGM Recruits STX17 to Neisseria gonorrhoeae-Containing Endosomes to Initiate Lysosomal Degradation.

Authors :
Gao S
Yuan D
Gao L
Yang F
Lin X
van der Veen S
Source :
The Journal of infectious diseases [J Infect Dis] 2023 Dec 20; Vol. 228 (12), pp. 1776-1788.
Publication Year :
2023

Abstract

Neisseria gonorrhoeae establishes tight interactions with mucosal epithelia through activity of its type IV pilus, while pilus retraction forces activate autophagic responses toward invading gonococci. Here we studied pilus-independent epithelial cell responses and showed that pilus-negative gonococci residing in early and late endosomes are detected and targeted by nucleotide-binding oligomerization domain 1 (NOD1). NOD1 subsequently forms a complex with immunity-related guanosine triphosphatase M (IRGM) and autophagy-related 16-like 1 (ATG16L1) to activate autophagy and recruit microtubule-associated protein light chain 3 (LC3) to the intracellular bacteria. IRGM furthermore directly recruits syntaxin 17 (STX17), which is able to form tethering complexes with the lysosome. Importantly, IRGM-STX17 interactions are enhanced by LC3 but were still observed at lower levels in an LC3 knockout cell line. These findings demonstrate key roles for NOD1 and IRGM in the sensing of intracellular N gonorrhoeae and subsequent directing of the bacterium to the lysosome for degradation.<br />Competing Interests: Potential conflicts of interest. All authors: No reported conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed.<br /> (© The Author(s) 2023. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Details

Language :
English
ISSN :
1537-6613
Volume :
228
Issue :
12
Database :
MEDLINE
Journal :
The Journal of infectious diseases
Publication Type :
Academic Journal
Accession number :
37926090
Full Text :
https://doi.org/10.1093/infdis/jiad478