title: Simulated solar UVB exposure inhibits transcutaneous immunization to cholera toxin via an irradiated skin site in cattle.
abstract: Transcutaneous immunization (TCI) is a new needle-free vaccination technology with the potential to reduce the risk of needle-borne disease transmission and carcass damage within the livestock industries. The principal antigen-presenting cell involved in TCI is thought to be the epidermal Langerhans cell. Langerhans cell function is inhibited by cutaneous ultraviolet-B radiation (UVB) exposure. Such exposure may inhibit TCI through sun exposed skin sites due to the phenomenon of local low dose photoimmunosuppression. TCI of cattle to cholera toxin (CT) resulted in the generation of a serum anti-CT-specific IgG(2) response. However, exposure of cattle to a sub-inflammatory dose of simulated solar UVB (2.43 x 10(3)J/m(2)) significantly (P<0.05) inhibited TCI to CT via irradiated skin sites.
authors.affiliation: Department of Veterinary Biosciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, 2001 S Lincoln Avenue, Urbana, IL 61802, USA.
authors.forename: C K
authors.initials: CK
authors.lastname: Morrow
authors.forename: I G
authors.initials: IG
authors.lastname: Colditz
authors.forename: R B
authors.initials: RB
authors.lastname: Cope
mesh_terms: D000279:Administration, Cutaneous; D000818:Animals; D000906:Antibodies / Q000097:blood; D001706:Biopsy / Q000662:veterinary; D002417:Cattle / Q000276:immunology*; D002418:Cattle Diseases / Q000276:immunology / Q000517:prevention & control; D002771:Cholera / Q000276:immunology / Q000517:prevention & control / Q000662:veterinary; D002772:Cholera Toxin / Q000008:administration & dosage / Q000037:antagonists & inhibitors* / Q000276:immunology; D005260:Female; D006651:Histocytochemistry / Q000662:veterinary; D007114:Immunization / Q000379:methods / Q000662:veterinary*; D011874:Radiometry / Q000662:veterinary; D012867:Skin / Q000276:immunology* / Q000473:pathology / Q000528:radiation effects*; D014466:Ultraviolet Rays / Q000009:adverse effects*
chemical_list: D000906:Antibodies; D002772:Cholera Toxin