Cited by 222Parasites and Host InteractionsHelminth infection and controlExtracellular vesicles in disease

The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.

Extracellular Vesicles from a Helminth Parasite Suppress Macrophage Activation and Constitute an Effective Vaccine for Protective Immunity

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Abstract

Recent studies have demonstrated that many parasites release extracellular vesicles (EVs), yet little is known about the specific interactions of EVs with immune cells or their functions during infection. We show that EVs secreted by the gastrointestinal nematode Heligmosomoides polygyrus are internalized by macrophages and modulate their activation. EV internalization causes downregulation of type 1 and type 2 immune-response-associated molecules (IL-6 and TNF, and Ym1 and RELMα) and inhibits expression of the IL-33 receptor subunit ST2. Co-incubation with EV antibodies abrogated suppression of alternative activation and was associated with increased co-localization of the EVs with lysosomes. Furthermore, mice vaccinated with EV-alum generated protective immunity against larval challenge, highlighting an important role in vivo. In contrast, ST2-deficient mice are highly susceptible to infection, and they are unable to clear parasites following EV vaccination. Hence, macrophage activation and the IL-33 pathway are targeted by H. polygyrus EVs, while neutralization of EV function facilitates parasite expulsion.

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Metadata

Authors
Coakley, G., McCaskill, J. L., Borger, J. G., Simbari, F., Robertson, E., Millar, M., Harcus, Y., McSorley, H. J., Maizels, R. M., & Buck, A. H.
Affiliations
  • Centre for Immunity, Infection and Evolution (GB)
  • Centre for Inflammation Research (GB)
  • Wellcome Centre for Molecular Parasitology (GB)
Corresponding author
  • Maizels, Rick M.
  • Buck, Amy H.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2017-05
Volume
19
Issue
8
Pages
1545-1557
ISSN
2211-1247 (ISSN-L)
OpenAlex
W2618954565
Cited by
219
References
53
Citations by year
2026: 14 · 2025: 20 · 2024: 32 · 2023: 23 · 2022: 21 · 2021: 22 · 2020: 38 · 2019: 23 · 2018: 21 · 2017: 4
FWCI
20.37
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Discovery Research Portal (University of Dundee) (publishedVersion, cc-by)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion)
  • Monash University Research Portal (Monash University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
Funders
  • Biotechnology and Biological Sciences Research Council (BB/J01446X/1)
  • Wellcome Trust (AHB-097394, RMM-106122, 095831, 104111)
Topics
  • Life Sciences › Immunology and Microbiology › Parasitology › Parasites and Host Interactions
  • Life Sciences › Immunology and Microbiology › Parasitology › Helminth infection and control
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
Keywords
extracellular vesicles, Heligmosomoides polygyrus, macrophage activation, alternative macrophage activation, vaccines, nematode infection, interleukin-6, TNF-α, Ym1, RELMα, protective immunity
MeSH terms
Extracellular Vesicles, Interleukin-1 Receptor-Like 1 Protein, Animals, Antibodies, Helminth, Antibody Formation, Bone Marrow Cells, Immunity, Macrophage Activation, Macrophages, Nematospiroides dubius, Parasites, Vaccination, Vaccines, Cytochalasin D, Receptors, Interleukin, Mice

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