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Pathogenic effects of bullous pemphigoid autoantibodies on rabbit corneal epithelium.
G J Anhalt; C F Bahn; R S Labib; J J Voorhees; A Sugar; L A Diaz (Profiled Author: Grant Anhalt)
The Journal of clinical investigation 1981;68(4):1097-101.Abstract
Bullous pemphigoid (BP) is associated with circulating autoantibodies reactive with an antigen(s) of the basement membrane zone (BMZ) of skin and mucosae. The pathogenicity of these autoantibodies, although suspected, is unconfirmed. We have investigated the effects of BP autoantibodies on a closely related tissue, the corneal epithelium of the rabbit. IgG fractions from the sera of seven patients with BP were purified by (a) ammonium sulfate precipitation, (b) ion exchange chromatography, or (c) gel filtration. Control IgG was prepared by ion exchange chromatography of pooled normal human gamma globulins. 32 rabbits received corneal intrastromal injections of BP IgG fractions (50 microliter, 0.95-2.05 mg total dose) in one eye, and control IgG (50 microliter, 1.8 mg) in the contralateral cornea. 28 of 32 BP IgG injections produced corneal inflammatory lesions, 10 of which developed visible blisters. Histologically, lesions showed polymorphonuclear cells clustering along the BMZ, and subepithelial blister formation. Immunofluorescence showed in vivo bound IgG and C3 at the BMZ. The intensity of inflammation was dose dependent and correlated often with in vitro complement fixation titers of the fractions. None of 32 corneas injected with control IgG became inflamed. BP IgG fractions injected intradermally into the ear skin of rabbits failed to produce inflammation. This may be due to slow clearance of IgG in the cornea, and optimal binding by the corneal epithelium. The intracorneal injections of BP IgG reproduce the clinical, histological, and immunological features of BP. This study provides evidence that BP autoantibodies are pathogenic.
This section shows information related to the publication - computed using the fingerprint of the publication - including related publications, related experts and related grants with fingerprints representing significant amounts of overlap between their fingerprint and this publication. The red dots indicate whether those experts or terms appear within the publication, thereby showing potential and actual connections.
S J Cowen; G J Anhalt; M S Wicha; A Sugar; R S Labib; L A DiazInvestigative ophthalmology & visual science 1981;21(6):879-82.
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