关键词: Anti-plasminogen antibody fresh frozen plasma ligneous conjunctivitis plasminogen

Mesh : Conjunctivitis / genetics immunology therapy DNA Mutational Analysis Enzyme-Linked Immunosorbent Assay Exons / genetics Female Humans Immunoglobulin A / blood Immunoglobulin G / blood Middle Aged Mutation, Missense Plasma Plasminogen / deficiency genetics immunology Polymerase Chain Reaction Retrospective Studies Skin Diseases, Genetic / genetics immunology

来  源:   DOI:10.3109/08820538.2015.1005319   PDF(Sci-hub)

Abstract:
OBJECTIVE: To report a novel plasminogen gene mutation and detection of anti-plasminogen antibodies in a patient with ligneous conjunctivitis successfully treated with 60% fresh frozen plasma (FFP).
METHODS: Retrospective data collected on a 45-year-old Caucasian female presenting with unilateral chronic membranous lesions.
RESULTS: Laboratory investigation demonstrated decreased plasminogen antigen level, plasminogen activity, and rate of plasminogen activation by u-PA or t-PA, and elevated plasminogen activator inhibitor-1. Anti-plasminogen IgG and IgA antibodies were detected. DNA analysis revealed a novel Asp432Asn heterozygous missense mutation in the plasminogen gene (exon 11). The patient was treated with topical 60% FFP, achieved complete remission after four months, and remained membrane-free for over five years of follow-up.
CONCLUSIONS: A novel plasminogen gene mutation, deficiency of plasminogen antigen and activity, and anti-plasminogen IgG and IgA antibodies were identified in a patient with adult-onset ligneous conjunctivitis. Sixty percent FFP maintained this patient disease-free for over five years.
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