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Cited by 451

The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.

Bacterial membrane vesicles deliver peptidoglycan to NOD1 in epithelial cells

Open access
Kaparakis, Maria, Turnbull, Lynne, Carneiro, Leticia, Firth, Stephen, Coleman, Harold A., Parkington, Helena C., Le Bourhis, Lionel, Karrar, Abdulgader, Viala, Jérôme, Mak, Johnson, Hutton, Melanie L., Davies, John K., Crack, Peter J., Hertzog, Paul J., Philpott, Dana J., Girardin, Stephen E., Whitchurch, Cynthia B., Ferrero, Richard L.·2010·Cellular Microbiology

Abstract

Gram-negative bacterial peptidoglycan is specifically recognized by the host intracellular sensor NOD1, resulting in the generation of innate immune responses. Although epithelial cells are normally refractory to external stimulation with peptidoglycan, these cells have been shown to respond in a NOD1-dependent manner to Gram-negative pathogens that can either invade or secrete factors into host cells. In the present work, we report that Gram-negative bacteria can deliver peptidoglycan to cytosolic NOD1 in host cells via a novel mechanism involving outer membrane vesicles (OMVs). We purified OMVs from the Gram-negative mucosal pathogens: Helicobacter pylori, Pseudomonas aeruginosa and Neisseria gonorrhoea and demonstrated that these peptidoglycan containing OMVs upregulated NF-kappaB and NOD1-dependent responses in vitro. These OMVs entered epithelial cells through lipid rafts thereby inducing NOD1-dependent responses in vitro. Moreover, OMVs delivered intragastrically to mice-induced innate and adaptive immune responses via a NOD1-dependent but TLR-independent mechanism. Collectively, our findings identify OMVs as a generalized mechanism whereby Gram-negative bacteria deliver peptidoglycan to cytosolic NOD1. We propose that OMVs released by bacteria in vivo may promote inflammation and pathology in infected hosts.

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Crossref · 10.1111/j.1462-5822.2009.01404.x

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Metadata

Authors
Kaparakis, M., Turnbull, L., Carneiro, L., Firth, S., Coleman, H. A., Parkington, H. C., Le Bourhis, L., Karrar, A., Viala, J., Mak, J., Hutton, M. L., Davies, J. K., Crack, P. J., Hertzog, P. J., Philpott, D. J., Girardin, S. E., Whitchurch, C. B., & Ferrero, R. L.
Venue
Cellular Microbiology
Published
2010-03
Volume
12
Issue
3
Pages
372-385
ISSN
  • 1462-5814 (ISSN-L)
  • 1462-5822
OpenAlex
W2149980799
Cited by
451
References
43
FWCI
7.64
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Bacterial membrane vesicles deliver peptidoglycan to NOD1 in epithelial cells. https://app.cochat.ai/papers/10.1111/j.1462-5822.2009.01404.x
The paper
Kaparakis, M., Turnbull, L., Carneiro, L., Firth, S., Coleman, H. A., Parkington, H. C., Le Bourhis, L., Karrar, A., Viala, J., Mak, J., Hutton, M. L., Davies, J. K., Crack, P. J., Hertzog, P. J., Philpott, D. J., Girardin, S. E., Whitchurch, C. B., & Ferrero, R. L. (2010). Bacterial membrane vesicles deliver peptidoglycan to NOD1 in epithelial cells. Cellular Microbiology. https://doi.org/10.1111/j.1462-5822.2009.01404.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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