Cited by 26Contact Dermatitis and AllergiesNeutrophil, Myeloperoxidase and Oxidative MechanismsDermatology and Skin Diseases

Neutrophil-Derived Myeloperoxidase Facilitates Both the Induction and Elicitation Phases of Contact Hypersensitivity

Open access
Strzepa, Anna, Gurski, Cody J., Dittel, Landon J., Szczepanik, Marian, Pritchard, Kirkwood A., Dittel, Bonnie N.·2021·Frontiers in Immunology

Abstract

Background: Allergic contact dermatitis (ACD) is a common skin disorder affecting an estimated 15-20% of the general population. The mouse model of ACD is contact hypersensitivity (CHS), which consists of two phases: induction and elicitation. Although neutrophils are required for both CHS disease phases their mechanisms of action are poorly understood. Neutrophils release myeloperoxidase (MPO) that through oxidation of biomolecules leads to cellular damage. Objectives: This study investigated mechanisms whereby MPO contributes to CHS pathogenesis. Methods: CHS was induced in mice using oxazolone (OX) as the initiating hapten applied to the skin. After 7 days, CHS was elicited by application of OX to the ear and disease severity was measured by ear thickness and vascular permeability in the ear. The role of MPO in the two phases of CHS was determined utilizing MPO-deficient mice and a specific MPO inhibitor. Results: During the CHS induction phase MPO-deficiency lead to a reduction in IL-1β production in the skin and a subsequent reduction in migratory dendritic cells (DC) and effector T cells in the draining lymph node. During the elicitation phase, inhibition of MPO significantly reduced both ear swelling and vascular permeability. Conclusion: MPO plays dual roles in CHS pathogenesis. In the initiation phase MPO promotes IL-1β production in the skin and activation of migratory DC that promote effector T cell priming. In the elicitation phase MPO drives vascular permeability contributing to inflammation. These results indicate that MPO it could be a potential therapeutic target for the treatment of ACD in humans.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3389/fimmu.2020.608871

Cites

58 of 58 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The MPO system has been involved in various skin pathologies, either serving as a causative factor or biomarker in inflammation, contact hypersensitivity and irritation, psoriasis, UV-damage, photoaging, and carcinogenesis.

    “beyond a role in cutaneous innate immunity, the MPO system has also been involved in various skin pathologies, either serving as a causative factor or biomarker in inflammation, contact hypersensitivity and irritation, psoriasis, UV-damage, photoaging, and carcinogenesis (51–59).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

Research works printed but not linked: 1

  1. [56]Pahwa R Jialal I “ Myeloperoxidase Deficiency”. In: StatPearls. Treasure Island (FL): StatPearls Publishing LLC (2019). 29262241

Cited by

Sorted by citations

Authors
Strzepa, A., Gurski, C. J., Dittel, L. J., Szczepanik, M., Pritchard, K. A., & Dittel, B. N.
Affiliations
  • Medical College of Wisconsin (US)
  • Jagiellonian University (PL)
Corresponding author
Dittel, Bonnie N.
Venue
Frontiers in Immunology
Published
2021-01-25
Volume
11
Pages
608871-608871
ISSN
1664-3224 (ISSN-L)
OpenAlex
W3121891695
Cited by
26
References
58
Citations by year
2026: 2 · 2025: 5 · 2024: 6 · 2023: 7 · 2022: 4 · 2021: 2
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Homo Politicus (Academy of Humanities and Economics in Lodz) (submittedVersion, cc-by-nc-nd)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health
  • National Multiple Sclerosis Society
Topics
  • Health Sciences › Medicine › Dermatology › Contact Dermatitis and Allergies
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
Keywords
myeloperoxidase, contact hypersensitivity, allergic contact dermatitis, neutrophils, oxazolone, IL-1β, dendritic cell migration, vascular permeability, MPO inhibitors, skin inflammation
MeSH terms
Animals, Cell Movement, Dendritic Cells, Dermatitis, Contact, Haptens, Inflammation, Lymph Nodes, Mice, Inbred C57BL, Peroxidase, Neutrophils, Oxazolone, Skin, T-Lymphocytes, Dermatitis, Allergic Contact, Mice, Interleukin-1beta

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review