Cited by 66Rheumatoid Arthritis Research and TherapiesPsoriasis: Treatment and PathogenesisT-cell and B-cell Immunology

Neutrophils Are Essential As A Source Of Il-17 In The Effector Phase Of Arthritis

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Katayama, Masaki, Ohmura, Koichiro, Yukawa, Naoichiro, Terao, Chikashi, Hashimoto, Motomu, Yoshifuji, Hajime, Kawabata, Daisuke, Fujii, Takao +2 more·2013·PLoS ONE

Abstract

OBJECTIVE: Th17 has been shown to have a pivotal role in the development of arthritis. However, the role of IL-17 in the T cell-independent effector phase has not fully been examined. We investigated whether IL-17 is involved in the effector phase of arthritis by using K/BxN serum-induced arthritis model. METHODS: K/BxN serum was transferred into IL-17 knockout (KO) mice, SCID mice and their control mice, and arthritis was evaluated over time. In order to clarify the source of IL-17 in the effector phase, neutrophils or CD4+ T cells collected from IL-17 KO or control mice were injected into IL-17 KO recipient mice together with K/BxN serum. To examine if neutrophils secrete IL-17 upon stimulation, neutrophils were stimulated with immune complex in vitro and IL-17 in the supernatant was measured by ELISA. RESULTS: K/BxN serum-induced arthritis was much less severe in IL-17 KO mice than in WT mice. Since K/BxN serum-transferred SCID mice developed severe arthritis with high serum IL-17 concentration, we speculated neutrophils are the responsible player as an IL-17 source. When wild type (WT) but not IL-17 KO neutrophils were co-injected with K/BxN serum into IL-17 KO mice, arthritis was exacerbated, whereas co-injection of WT CD4+ T cells had no effect. In vitro, stimulation of neutrophils with immune complex caused IL-17 secretion. CONCLUSIONS: Neutrophils are essential as a source of IL-17 in the effector phase of arthritis. The trigger of secreting IL-17 from neutrophils may be immune complex.

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Crossref · 10.1371/journal.pone.0062231

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  • IL-17, produced primarily by CD4+ Th17 cells, acts to enhance chemokine production by target cells in various tissues to promote/attract monocytes and neutrophils to those tissue (especially mucosal) sites, and in combination with sICAM suggests the predominance of a Th1 phenotypic response (acute pro-inflammatory state).

    “IL-17, produced primarily by CD4+ Th17 cells, acts to enhance chemokine production by target cells in various tissues to promote/attract monocytes and neutrophils to those tissue (especially mucosal) sites, and in combination with sICAM suggests the predominance of a Th1 phenotypic response (acute pro-inflammatory state) [25-30].”

    From Oral neutrophils are an independent marker of the systemic inflammatory response after cardiac bypass (2014) · cites this paper as [28]

    Split into 2 atoms — 0 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 1 unverifiable. Expand the claim to see per-atom verdicts.

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  • IL-17 promotes endothelial activation by inducing the expression of endothelial adhesion markers (E-selectin, VCAM-1, and ICAM-1) in a p38 MAPK-dependent manner.

    “IL-17 promotes endothelial activation by inducing the expression of endothelial adhesion markers (E-selectin, VCAM-1, and ICAM-1) in a p38 MAPK-dependent manner.”

    From Oral neutrophils are an independent marker of the systemic inflammatory response after cardiac bypass (2014) · cites this paper as [28]

    The Introduction says IL-17 can induce endothelial cells to secrete inflammatory cytokines, but does not address adhesion-marker expression. Searches for E-selectin, VCAM-1, ICAM-1, endothelial activation, and p38 MAPK found no passage supporting the claimed mechanism; our copy is not marked as truncated. (LLM, conf=0.73)

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  • This increased expression of adhesion molecules stimulates the trans-endothelial migration of neutrophils.

    “This increased expression of adhesion molecules stimulates the trans-endothelial migration of neutrophils) [25-29].”

    From Oral neutrophils are an independent marker of the systemic inflammatory response after cardiac bypass (2014) · cites this paper as [28]

    The Results section (“Neutrophils Can Secrete IL-17”) addresses immune-complex stimulation of neutrophils and IL-17 secretion. The Discussion mentions increased vascular permeability, but neither passage addresses increased adhesion-molecule expression or its effect on neutrophil trans-endothelial migration. Searches for those terms found no supporting passage in our copy; page numbers were unavailable. (LLM, conf=0.72)

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Authors
Katayama, M., Ohmura, K., Yukawa, N., Terao, C., Hashimoto, M., Yoshifuji, H., Kawabata, D., Fujii, T., Iwakura, Y., & Mimori, T.
Affiliations
  • Kyoto University (JP)
  • Institute of Medical Science, The University of Tokyo (JP)
Corresponding author
Ohmura, Koichiro
Venue
PLoS ONE
Published
2013-05-06
Volume
8
Issue
5
Pages
e62231
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2102518833
Cited by
66
References
26
Citations by year
2024: 2 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 3 · 2019: 8 · 2018: 5 · 2017: 6 · 2016: 15 · 2015: 6 · 2014: 7 · 2013: 2
FWCI
8.20
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • Kyoto University Research Information Repository (Kyoto University) (submittedVersion)
Funders
Japan Society for the Promotion of Science (22390201, 24659274)
Topics
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
IL-17, neutrophils, Th17 cells, immune complexes, CD4+ T cells, autoimmunity
MeSH terms
Animals, Ankle Joint, Arthritis, Rheumatoid, Cells, Cultured, Mice, Inbred C57BL, Mice, Inbred ICR, Neutrophils, CD4-Positive T-Lymphocytes, Mice, SCID, Mice, Inbred NOD, Mice, Knockout, Interleukin-17

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