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Advances in Medical Sciences

The Journal of Medical University of Bialystok

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IL-8, IL-12 and IL-10 cytokines generation by neutrophils, fibroblasts and neutrophils- fibroblasts interaction in psoriasis

E Glowacka1 / P Lewkowicz1 / H Rotsztejn1 / A Zalewska1

Department of Clinical Immunology, Polish Mother's Memorial Hospital - Research Institute, Lodz, Poland1

Department of Cosmetology, Medical University of Lodz, Lodz, Poland2

Department of Dermatology and Venerology, Medical University of Lodz, Lodz, Poland3

This content is open access.
(CC BY-NC-ND 4.0)

Citation Information: Advances in Medical Sciences. Volume 55, Issue 2, Pages 254–260, ISSN (Online) 1898-4002, ISSN (Print) 1896-1126, DOI: 10.2478/v10039-010-0037-0, October 2010

Publication History:
Published Online:
2010-10-08

IL-8, IL-12 and IL-10 cytokines generation by neutrophils, fibroblasts and neutrophils- fibroblasts interaction in psoriasis

Purpose: Psoriasis is a common skin disease affecting about 1-3% of the world population. Many types of cells, including lymphocytes, dendritics APCs (antigen presenting cells), NKT (natural killer T) cells, neutrophils, keratinocytes and fibroblasts are involved in the pathogenesis of psoriasis.

The aim of our study was to assess in psoriatic patients the production of IL-8, IL-10 and IL-12 cytokines by neutrophils, fibroblasts and fibroblasts - neutrophils interaction.

Material/Methods: The production of IL-8, IL-10 and IL-12 cytokines was evaluated in supernatants after cells incubation for 21 h in culture medium alone and in medium in the presence of IL-8 or TNF-α. Concentrations of IL-8, IL-10, IL-12 were measured by enzyme-linked immunosorbent assay (ELISA) method using commercially available kits.

Results: Our results demonstrate that fibroblasts are not able to produce IL-10 and IL-12 but they generate IL-8. The amount of IL-8 depends on the site of derivation of fibroblasts and on the stimuli. Neutrophils released IL-8, IL-12 (at a lower level in psoriatic patients) and IL-10 but only in the case of healthy donors and at a very low concentration. Moreover, we observed higher concentrations of IL-12 and IL-8 in supernatants as a result of fibroblasts-neutrophils interaction in psoriatic patients.

Conclusions: Our results suggest that fibroblasts take part in the inflammatory reaction in psoriasis via cytokines or direct interaction with neutrophils. Fibroblasts probably do not exert any anti-inflammatory effect.

Keywords: psoriasis; neutrophils; fibroblasts; cytokines secretion

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