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  • Title: Immunofluorescent studies in ocular cicatricial pemphigoid.
    Author: Leonard JN, Hobday CM, Haffenden GP, Griffiths CE, Powles AV, Wright P, Fry L.
    Journal: Br J Dermatol; 1988 Feb; 118(2):209-17. PubMed ID: 3280001.
    Abstract:
    Twenty nine patients with cicatrizing conjunctivitis were studied; 17 with a clinical diagnosis of cicatricial pemphigoid, five with a clinical diagnosis of pseudopemphigoid caused by long-term application of topical medication and seven who had a cicatrizing conjunctivitis from other causes. Biopsies from clinically uninvolved bulbar conjunctiva were taken for direct immunofluorescence and blood was taken for indirect immunofluorescence using normal human conjunctiva, oral mucosa and skin as substrates. On direct immunofluorescence, in vivo bound immunoglobulins were found along the basement membrane in 10 of the 17 patients with cicatricial pemphigoid, one of the five with pseudopemphigoid and two of the seven with a cicatrizing conjunctivitis associated with other diseases. Circulating anti-basement membrane zone antibodies were found only when conjunctiva was used as a substrate. These were present in seven of the patients with cicatricial pemphigoid, three of those with pseudopemphigoid and two of those with a cicatrizing conjunctivitis caused by other diseases. These results indicate that direct immunofluorescence is a useful, but not absolute diagnostic marker for ocular cicatricial pemphigoid. The results in the pseudopemphigoid group argue that this is an immunologically mediated disorder indistinguishable from spontaneous cicatricial pemphigoid and probably triggered by the drugs. The presence of circulating antibodies should allow for precise identification of the antigen involved in cicatricial pemphigoid using SDS electrophoresis and Western blot analysis.
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