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PLoS One. 2015 Jun 19;10(6):e0130522. doi: 10.1371/journal.pone.0130522. eCollection 2015.

Compartmentalized Cytokine Responses in Hidradenitis Suppurativa.

Author information

1
4th Department of Internal Medicine, University of Athens, Medical School, Athens, Greece.
2
Department of Internal Medicine, Radboud University Medical Center and Nijmegen Institute for Infection, Inflammation and Immunity (N4i), Nijmegen, The Netherlands.
3
4th Department of Internal Medicine, University of Athens, Medical School, Athens, Greece; Department of Internal Medicine, Radboud University Medical Center and Nijmegen Institute for Infection, Inflammation and Immunity (N4i), Nijmegen, The Netherlands.

Abstract

BACKGROUND:

Favorable treatment outcomes with TNF blockade led us to explore cytokine responses in hidradenitis suppurativa (HS).

METHODS:

Blood monocytes of 120 patients and 24 healthy volunteers were subtyped by flow cytometry. Isolated blood mononuclear cells (PBMCs) were stimulated for cytokine production; this was repeated in 13 severe patients during treatment with etanercept. Cytokines in pus were measured.

RESULTS:

CD14brightCD16dim inflammatory monocytes and patrolling monocytes were increased in Hurley III patients. Cytokine production by stimulated PBMCs was low compared to controls but the cytokine gene copies did not differ, indicating post-translational inhibition. The low production of IL-17 was restored, when cells were incubated with adalimumab. In pus, high concentrations of pro-inflammatory cytokines were detected. Based on the patterns, six different cytokine profiles were discerned, which are potentially relevant for the choice of treatment. Clinical improvement with etanercept was predicted by increased production of IL-1β and IL-17 by PBMCs at week 8.

CONCLUSIONS:

Findings indicate compartmentalized cytokine expression in HS; high in pus but suppressed in PBMCs. This is modulated through blockade of TNF.

PMID:
26091259
PMCID:
PMC4474720
DOI:
10.1371/journal.pone.0130522
[Indexed for MEDLINE]
Free PMC Article

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