Cited by 76NF-κB Signaling PathwaysImmune Response and InflammationImmunotherapy and Immune Responses

A Helminth Glycan Induces APC Maturation via Alternative NF-κB Activation Independent of IκBα Degradation

Thomas, Paul G, Carter, Michele R, Da’dara, Akram A, DeSimone, Tiffany M, Harn, Donald A·2005·The Journal of Immunology

Abstract

Activation of APCs via TLRs leads to activation of NF-κB, a key transcription factor in cells of the immune system most often associated with induction of Th1-type and proinflammatory responses. The neoglycoconjugate lacto-N-fucopentaose III (12-25 molecules)-dextran (LNFPIII-Dex) activates dendritic cells (DCs) via TLR4, as does LPS. However, unlike LPS, LNFPIII-Dex-activated cells induce Th2-type CD4+ T cell responses. This observation led us to ask whether LNFPIII-activated APCs were differentially activating NF-κB, and if so, could this partly account for how DCs mature in response to these two different pathogen-associated molecular patterns (PAMPs). In this study, we show that LNFPIII-Dex stimulation of APCs induces rapid, but transient NF-κB translocation and activity in the nucleus, in comparison with the persistent activation induced by LPS. We then demonstrate that transient vs persistent NF-κB activation has important implications in the development of the APC phenotype, showing that the second wave of NF-κB translocation in response to LPS is required for production of the proinflammatory mediator NO. In contrast to LPS, LNFPIII-stimulated APCs that only transiently activate NF-κB do not induce degradation of the known IκB family members or production of NO. However, cells stimulated with LNFPIII rapidly accumulate p50, suggesting that an alternative p105 degradation-dependent mechanism is primarily responsible for NF-κB activation downstream of LNFPIII. Finally, we show that while NF-κB translocation in LNFPIII-stimulated APCs is transient, it is required for the development of the DC 2 phenotype, confirming a crucial and multifaceted role for NF-κB in innate immune responses.

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Crossref · 10.4049/jimmunol.175.4.2082

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  • The LNFPIII motif, present in both S. mansoni and human milk, has similar DC-modulating effects as total SEA and can act as an adjuvant for a type 2 immune response.

    “The LNFPIII (lactose-N-fucopentose III) motif, present in both on S. mansoni and in human milk, has similar DC-modulating effects as total SEA (Thomas et al., 2005) and can act as an adjuvant for a type 2 immune response”

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Authors
Thomas, P. G., Carter, M. R., Da’dara, A. A., DeSimone, T. M., & Harn, D. A.
Affiliations
Harvard University (US)
Venue
The Journal of Immunology
Published
2005-08
Volume
175
Issue
4
Pages
2082-2090
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1665471078
Cited by
76
References
36
Citations by year
2025: 2 · 2023: 2 · 2022: 1 · 2021: 2 · 2020: 1 · 2018: 4 · 2016: 3 · 2015: 6 · 2014: 7 · 2013: 7 · 2012: 4
FWCI
1.63
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Allergy and Infectious Diseases (R01AI056484)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
lacto-N-fucopentaose III, dendritic cell maturation, NF-κB activation, IκBα degradation, TLR4, lipopolysaccharide, Th2 immune response, nitric oxide production, innate immunity, pathogen-associated molecular patterns
MeSH terms
NF-KappaB Inhibitor alpha, Amino Sugars, Animals, Antigen-Presenting Cells, Antigens, Helminth, Cell Differentiation, Cell Line, Cells, Cultured, Dendritic Cells, Dextrans, Female, Lipopolysaccharides, Mice, Inbred BALB C, Mice, Transgenic, Nitric Oxide, Polysaccharides, Schistosoma mansoni, NF-kappa B, Mice, Knockout, Coculture Techniques, I-kappa B Proteins, Mice, NF-kappa B p50 Subunit

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