Psoriasis targeted therapy

Characterization of interleukin 17A expression in subtypes of psoriasis

Eric Lee, Mina Zarei, Charlotte LaSenna, Gabriel Villada, Paolo Romanelli

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

INTRODUCTION: Psoriasis is a chronic, inflammatory autoimmune disease that affects about 3% of the general population in the United States with 17% suffering from moderate to severe psoriasis. The disease process is believed to be mediated by tumor necrosis factor (TNF)-? and cytokines secreted by specialized T-cell populations including Interleukin (IL)-17, IL-22, and Interferon (IFN) ?. IL-17 plays an important role in psoriasis. In this study we evaluated the expression of IL-17A in variants of psoriasis including plaque, palmoplantar, scalp, pustular, and guttate subtypes via immunohistochemistry (IHC). METHODS AND MATERIALS: A search of the University of Miami Dermatopathology database was performed to identify all available patient specimens within the various subtypes of psoriasis. IL-17A IHC staining was performed using 4 ?m paraffin skin sections. 1:25 dilution of IL-17A antibody was used. Stained slides were analyzed using a semi-quantitative scoring method ranging from negative to three plus. RESULTS: Palmoplantar and pustular psoriasis cases showed consistently strong IL-17A staining. Plaque psoriasis cases showed intermittent to strong IL-17A staining. The results in the scalp and guttate psoriasis cases showed variable results. CONCLUSION: The results of our study suggests the significant role of the cytokine IL-17A in the development of palmoplantar and pustular psoriasis. However, scalp and guttate subtypes showed variable expression from negative to strongly positive, which demonstrates a case by case basis expression of IL-17A. Therefore, exploring the IHC characterization of subtypes of psoriasis will help dermatologists better understand the pathogenesis of each subtype and help clinicians optimize treatments.

Original languageEnglish (US)
Pages (from-to)1133-1136
Number of pages4
JournalJournal of Drugs in Dermatology
Volume14
Issue number10
StatePublished - 2015

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Interleukin-17
Psoriasis
Scalp
Therapeutics
Immunohistochemistry
Staining and Labeling
Cytokines
Paraffin
Interferons
Population
Autoimmune Diseases
Research Design
Tumor Necrosis Factor-alpha
Databases
T-Lymphocytes
Skin

ASJC Scopus subject areas

  • Dermatology

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Psoriasis targeted therapy : Characterization of interleukin 17A expression in subtypes of psoriasis. / Lee, Eric; Zarei, Mina; LaSenna, Charlotte; Villada, Gabriel; Romanelli, Paolo.

In: Journal of Drugs in Dermatology, Vol. 14, No. 10, 2015, p. 1133-1136.

Research output: Contribution to journalArticle

Lee, Eric ; Zarei, Mina ; LaSenna, Charlotte ; Villada, Gabriel ; Romanelli, Paolo. / Psoriasis targeted therapy : Characterization of interleukin 17A expression in subtypes of psoriasis. In: Journal of Drugs in Dermatology. 2015 ; Vol. 14, No. 10. pp. 1133-1136.
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