Single blinded, randomized, placebo-controlled study on the effects of ciclosporin on cutaneous barrier function and immunological response in atopic beagles

Veterinary Immunology and Immunopathology
Amelia G WhiteRosanna Marsella

Abstract

Ciclosporin (CsA) is a common treatment for canine atopic dermatitis (cAD). cAD is a very common skin disease with a multifactorial pathogenesis due to complex interactions between the host and the environment. The purpose of this study was to describe the physical and immunological effects of CsA in cAD using a canine model of AD. Fourteen beagles were enrolled; seven received CsA orally every 24 h for 28 days, and seven received placebo. All dogs were exposed to relevant allergens, house dust mite solution, one day prior to treatment and once weekly thereafter for 28 consecutive days. Canine atopic dermatitis extent and severity index-03 (CADESI-03) and skin biopsies were performed on day 0, 14, and 28. Quantitative RT-PCR was used to determine levels of cutaneous cytokines and barrier function markers. Indirect immunofluorescence was used to determine protein expression and distribution of nuclear messengers, barrier function and inflammatory [thymic stromal lymphopoietin (TSLP)] markers. The data were tested for normality and then the upaired two samples Student's t-test and the repeated measurements ANOVA, followed by the Dunnett's Multiple Comparison Test as post-hoc analysis, were performed. A P value of <0.05 was consid...Continue Reading

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