Spondyloarthritis & psoriatic arthritis

Psoriasis patients with psoriatic arthritis demonstrate a reduced regulatory capacity for neutrophil elastase

Rheumatology (Oxford)Published Mechanistic study

Authors' conclusion

PsA patients show a reduced NE inhibitor expression in both the skin and blood compartment compared with those with plaque PsO only.

Study context

Population
Patients with plaque PsO with and without PsA, healthy controls; independent PsA and arthritis validation cohorts
Comparison
PsO with PsA vs plaque PsO without PsA vs healthy controls
Outcome
Protein expression of NE and elafin in epidermal samples and serum
Methodological detailsmatched epidermal and serum samples, validation in independent cohorts
  • Matched epidermal and serum samples
  • Validation in independent cohorts

Main finding

As reported in the abstract

  • Neutrophil elastase (NE):elafin ratio differed significantly between PsO and PsA patients
  • Elafin expression reduced in PsA vs plaque PsO
  • NE:secretory leucocyte protease inhibitor ratio increased in PsA vs PsO without PsA, healthy controls and other arthritis

Original publication

Psoriasis patients with psoriatic arthritis demonstrate a reduced regulatory capacity for neutrophil elastase. Rheumatology (Oxford). Published 22 July 2026. doi:10.1093/rheumatology/keag369

Composed by AI from the published abstract and checked against it. How Briefs are made →

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