Title
High prevalence of bovine papillomaviral DNA in the normal skin of equine sarcoid-affected and healthy horsesHigh prevalence of bovine papillomaviral DNA in the normal skin of equine sarcoid-affected and healthy horses
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Veterinary Sciences
Research group
Applied veterinary morphology
Publication type
article
Publication
Amsterdam,
Subject
Biology
Veterinary medicine
Source (journal)
Veterinary microbiology. - Amsterdam
Volume/pages
129(2008):1-2, p. 58-68
ISSN
0378-1135
ISI
000255990700006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Bovine papillomavirus (BPV), the causative agent of papillomas in cattle, has been shown to play a major role in the pathogenesis of equine sarcoids in horses. BPV has also been detected occasionally in normal equine skin. In this study, presence and activity of BPV in normal skin and peripheral blood of 4 groups of horses were evaluated: sarcoid-affected horses, horses living in contact with sarcoid-affected horses, horses living in contact with papilloma-affected cattle and control horses. From each horse, 3 samples on 4 locations were collected: a swab of the intact skin surface and both a swab and a biopsy after decontamination. BPV DNA was found in the normal skin of 24 of 42 horses (57%). Mainly sarcoid-affected horses and horses living in contact with cattle were carriers (73%), but BPV DNA was also detected in 50% of the horses living in contact with sarcoid-affected horses and in 30% of the control population. BPV mRNA was detected in 58% of the samples positive for BPV DNA, although in a much lower quantity compared to sarcoids. In most of the BPV DNA positive samples mild acanthosis, slight basophilic cytoplasmic swelling of the epidermal layers and/or thickening of the basal membrane were noticed, but these observations were also present in several BPV DNA negative normal skin samples. BPV DNA could not be detected in peripheral blood. These findings suggest latent infection and a wide-spread occurrence of BPV in the horse population. (C) 2007 Elsevier B.V. All rights reserved.
E-info
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